The document is a seminar report on smart materials submitted for a master's degree. It defines smart materials as materials that can change properties in response to external stimuli like stress, temperature, or electric/magnetic fields. The report discusses various types of smart materials like piezoelectric materials, shape memory alloys, and magnetorheological fluids. It provides examples of their properties and applications in fields like civil engineering and automobiles. In conclusion, the report examines smart materials' advantages in reducing costs and improving performance, as well as limitations like expense and sensitivity during use.
This presentation is an introduction to Smart Materials including Piezoelectric materials, Shape memory materials, Magnetorheological, PH sensitive polymers, and Chromogenic systems.You can find the other sessions on my Linkedin or Slideshare pages as well.
classify and explain various types of smart materials.
Smart materials” are materials that change significantly one or more of their properties, such as shape, color, or size in response to externally applied stimuli, such as stress, light, temperature, moisture or pH, and electric or magnetic fields.
Smart materials are now a days being used in all spheres of human life and technology. It have the functions of actuator, sensor, self-healing and so forth, are expected to be used not only as advanced functional materials but also as key materials to provide structures with smart functions. These are also called intelligent materials that has ability to respond to stimuli and environmental changes and to activate their function according these changes.
This presentation is an introduction to Smart Materials including Piezoelectric materials, Shape memory materials, Magnetorheological, PH sensitive polymers, and Chromogenic systems.You can find the other sessions on my Linkedin or Slideshare pages as well.
classify and explain various types of smart materials.
Smart materials” are materials that change significantly one or more of their properties, such as shape, color, or size in response to externally applied stimuli, such as stress, light, temperature, moisture or pH, and electric or magnetic fields.
Smart materials are now a days being used in all spheres of human life and technology. It have the functions of actuator, sensor, self-healing and so forth, are expected to be used not only as advanced functional materials but also as key materials to provide structures with smart functions. These are also called intelligent materials that has ability to respond to stimuli and environmental changes and to activate their function according these changes.
Introduction to smart materials and their applications in engineering.
How to prepare MR (Magnetrorheological) fluids at home?
What are Shape Memory Alloys?
What are Piezoelectric materials?
#WikiCourses
https://wikicourses.wikispaces.com/Topic04+Smart+Materials
Shape Memory Alloy is one type of Smart Material.It can Remember its Original Shape.It has 2 way memory,i.e:- it can Remember 2 Shape,one in Low temperature and other in high temperature.
Hello guys! This slide gives a quick guidance about what 'smart materials' are and also about it's types, application and many more. I hope my presentation was helpful for you all.
(this presentation was made under the guidance of our subject in-charge Mr. Mahesh Maali of the subject E- learning and educational development )Thank you!
Smart Materials ppt, Smart or intelligent materials are materials that have to respond to stimuli and environmental changes, Detailed Engineering Project Research on Smart Materials, smart and composite materials, smart materials in construction, smart materials in engineering, its about smart or say intelligent materials
ppt on details of smart materials that could be useful in civil engineering. smart materials are the newest technology that is the most researched topic in civil engineering fields
Smart materials are designed materials that have one or more properties that can be significantly changed in a controlled fashion by external stimuli, such as stress, temperature, moisture, pH, electric or magnetic fields.
Introduction to smart materials and their applications in engineering.
How to prepare MR (Magnetrorheological) fluids at home?
What are Shape Memory Alloys?
What are Piezoelectric materials?
#WikiCourses
https://wikicourses.wikispaces.com/Topic04+Smart+Materials
Shape Memory Alloy is one type of Smart Material.It can Remember its Original Shape.It has 2 way memory,i.e:- it can Remember 2 Shape,one in Low temperature and other in high temperature.
Hello guys! This slide gives a quick guidance about what 'smart materials' are and also about it's types, application and many more. I hope my presentation was helpful for you all.
(this presentation was made under the guidance of our subject in-charge Mr. Mahesh Maali of the subject E- learning and educational development )Thank you!
Smart Materials ppt, Smart or intelligent materials are materials that have to respond to stimuli and environmental changes, Detailed Engineering Project Research on Smart Materials, smart and composite materials, smart materials in construction, smart materials in engineering, its about smart or say intelligent materials
ppt on details of smart materials that could be useful in civil engineering. smart materials are the newest technology that is the most researched topic in civil engineering fields
Smart materials are designed materials that have one or more properties that can be significantly changed in a controlled fashion by external stimuli, such as stress, temperature, moisture, pH, electric or magnetic fields.
SMART MATERIALS by PERAM SHYAMSUNDAR REDDY from JNTUA.Shyam812
This presentation gives a brief idea about the importance of smart materials in the present research world and their applications in all the fields of technology.
Smart Materials The Next Generation by Vikash Chanderijtsrd
Smart materials SMs are substances that exhibit systematic behavioral changes in response to a given stimulus, according to Rögen 1989 . Changes in chemical or magnetic fields, or both, as well as changes in stress, sound, temperature, or radioactive radiation, are all examples of possible stimuli Fig. 1 . There are five ways in which these materials stand out from the crowd they are direct, immediate, selected, and direct. independent action and fleeting nature Addington and Schoedeck, 2006 . Vikash Chander "Smart Materials: The Next Generation" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd63479.pdf Paper Url: https://www.ijtsrd.com/chemistry/other/63479/smart-materials-the-next-generation/vikash-chander
A Review on the State of Art of Smart Material for Defence Applicationsijtsrd
Smart materials are nowadays used in all spheres of life. The change in technology and development in the research field has lead smart materials to play a vital role in human life. Smart materials can adjust themselves according to the surroundings and change their properties in response to the stimulus input. However, the demand for smart materials has been increased in defense, automotive, and other industrial branches. These smart materials are listed under the group of advanced materials. A different application of smart materials can be used in industrial applications, aviation, etc. The use of smart materials in defence applications has been discussed below. Hrutuja A. Madake | Younus A. Fakir | Santosh S. Bhanuse | Chinmaya R. Shinagare | Khalid S. Pirjade | Avesahemad S N Husainy "A Review on the State of Art of Smart Material for Defence Applications" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, URL: https://www.ijtsrd.compapers/ijtsrd42589.pdf Paper URL: https://www.ijtsrd.comengineering/mechanical-engineering/42589/a-review-on-the-state-of-art-of-smart-material-for-defence-applications/hrutuja-a-madake
Smart materials are materials that have one or more properties that can be significantly altered in a controlled fashion by external stimuli, such as stress, temperature, moisture, pH, electric or magnetic fields.
The change in the material can also be reversible, as a change in stimulus can bring the material back to its previous state.
SMART MATERIALS AND MEMS_17ME745_Full note.docxRoopaDNDandally
JSS ACADEMY OF TECHNICAL EDUCATION
JSS campus, Dr. Vishnuvaradhan road, Bangalore -60
DEPARTMENT OF MECHANICAL ENGINEERING
Sub: Smart Materials and MEMS
Question bank - Module – I
Text Book: “Smart structures – Analysis and Design” by A V Srinivasan. Cambridge University Press 2001.
1. What are smart materials? Explain its application in various fields.
2. Explain the active and passive smart materials and also open loop and closed loop smart structure.
3. List the applications of smart structures and explain.
4. What are piezoelectric materials? Explain their properties
5. Explain the use of piezoelectric material in a Inchworm Linear motor.
6. Derive an equation for actuation of structural components by piezoelectric crystal under axial motion of rods considering various loading.
7. What are shape memory alloys? Applications of shape memory alloys.
8. Explain with neat sketches, one way and two wayshape memory effect.
9. Develop a mathematical model to find martensitic fraction in an SMA at critical temperatures by considering only the effect of temperature. (Explain experimental phenomenology of SMA)
10. Explain the effect of stress on the characteristic temperature by deriving an expression for upper and lower limits of stress for phase transformation. (super elasticity)
11. With a neat sketch explain stress-strain characteristics of SMA as a function of temperature.
12. Discuss the advantages of multiplexing embedded NiTiNOL actuators.
13. Explain with neat sketch vibration control using a NiTiNOL wire supporting a weight at the end of a cantilever beam.
14. Explain with neat sketch vibration control of a beam by SMA generated axial force.
15. Explain with neat sketch feasibility of controlling vibration in a beam structure.
JSS ACADEMY OF TECHNICAL EDUCATION
JSS campus, Dr. Vishnuvaradhan road, Bangalore -60
DEPARTMENT OF MECHANICAL ENGINEERING
Sub: Smart Materials and MEMS
Question bank - Module – 2
Ref: Smart structures - Analysis and design by A V Srinivasan
1. Discuss fluid composition and behavior of ER and MR fluids
2. What are MR Dampers? Explain the characteristics of controllable fluid dampers as applied to civil structures.
3. Explain the application of MR fluids in the clutches used to transfer torque between rotating mechanical components
4. Explain the Bingham plastic material model of ER and MR fluids.
5. Discuss application of ER and MR fluids in clutches and dampers
6. Differentiate between the properties of ER and MR fluids.
7. Explain the principle of working of MR fluids with a sketch
8. What are ER fluids? Discuss their merits and demerits. With a sketch explain working of MR damper.
9. Explain the concept of “Total Internal Refection”. How it is useful in fiber optics? Derive Numerical Aperture of optical fiber.
10. Explain how embedded fiber optic sensors can be used as chemical sensors in structures.
11. Explain the fiber optic principle. Discuss on technique of measuring strain using
Studying the thermal behaviour of concrete structure using nanoencapsulated p...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
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Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
1. A Seminar Report
On
SMART MATERIALS
In partial fullfilment of the requirements for the award of the Degree
Of
MASTER OF TECHNOLOGY
IN
MECHANICAL ENGINEERING
Submitted by
Pardeep Dahiya
Roll No. 13001504023
Department of Mechanical Engineering
Deenbandhu Chhotu Ram University of Science and Technology
Murthal, Sonepat
1 | P a g e
2. INDEX :
1. INTRODUCTION
2. WHAT ARE THE SMART MATERIALS?
2.1 OVERVIEW OF SMART MATERIALS
2.2 ADVANTAGES OF SMART MATERIALS
2.3 LIMITATIONS OF SMART MATERIALS
2.4 APPLICATIONS OF SMART MATERIALS
3. VARIOUS SMART MATERIALS
3.1 PIEZOELECTRIC MATERIALS
3.2 ELECTRO-RHEOSTATIC & MAGNETO-RHEOSTATIC
MATERIALS
3.3 SHAPE MEMORY ALLOYS(SMA)
3.4 KEN MATERIALS
3.5 BIOMIMETICS
3.6 DUMB MATERIALS
4. CONCLUSION
5. FUTURE OF SMART MATERIALS
6. REFERENCES
2 | P a g e
3. 1. INTRODUCTION
Smart materials are materials that have one or more properties that can be
significantly changed in a controlled fashion by external stimuli, such as stress,
temperature, moisture, pH, electric or magnetic fields.
Such materials have the ability to change shape or size simply by adding a little bit of
heat, or to change from a liquid to a solid almost constantly when near a magnet; these
materials are called smart materials.
There are a number of types of smart material, some of which are already common. Some
examples are as following:
· Piezoelectric materials are materials that produce a voltage when stress is
applied. Since this effect also applies in the reverse manner, a voltage across the
sample will produce stress within the sample. Suitably designed structures made
from these materials can therefore be made that bend, expand or contract when a
voltage is applied.
· Shape memory alloys and shape memory polymers are Thermoresponsive
materials where deformation can be induced and recovered through temperature
changes.
· Magnetic shape memory alloys are materials that change their shape in response
to a significant change in the magnetic field.
· pH-sensitive polymers are materials which swell/collapse when the pH of the
surrounding media changes.
· Temperature-responsive polymers are materials which undergo changes upon
temperature.
· Holochromic materials are commonly materials that change their colour as a
result of changing acidity. One suggested application is for paints that can change
colour to indicate corrosion in the metal underneath them.
· Chromogenic systems change colour in response to electrical, optical or thermal
changes. These include electrochromic materials, which change their colour or
opacity on the application of a voltage (e.g. liquid crystal displays),
thermochromic materials change in color depending on their temperature, and
photochromic materials, which change colour in response to light - for example,
light sensitive sunglasses that darken when exposed to bright sunlight.
· Non-Newtonian fluid is a liquid which changes its viscosity in response to an
applied shear rate. In other words the liquid will change its viscosity in response
to some sort of force or pressure. One good example of this is Oobleck, a fluid
that seems to temporarily turn into a solid when a force is applied quickly.
Another good example is Custard, as long as it is starch based.
3 | P a g e
4. 2. WHAT ARE SMART MATERIALS?
“Smartness” of a material is characterized by self-adaptability, self sensing memory and
decision making. Smart materials are the materials that respond with shape or other
property change upon application of externally applied driving forces (electrical,
magnetic and thermal). In other words, smart materials refer to materials that can undergo
controlled transformations through physical interactions and are structured with multi-functionality.
They have they are able to respond to slight variation in temperature,
moisture, pH, electric or magnetic fields by changing their appearance, state and
properties. They are exemplified as boon in tackling the problem of deteriorating civil
infrastructure and they had influenced the life cost of these structures by reducing the
upfront construction cost as they allow reduced safety factors in initial design.
2.1OVERVIEW OF SMART MATERIALS:
· Smart materials are the materials which have certain characteristics by
which they have special position in our life. We can not think about these
development and growth.
· Smart materials sense and respond to their environment and application in
areas as diverse as health, defense, packaging etc.
· Smart materials can think and do amazing things. They are very quick
respond to the environment around it. However it has different
applications, it has some advantages and limitations.
2.2ADVANTAGES OF SMART MATERIALS:
· High energy density.
· Excellent bandwidth.
· Novel function such as huge volume change as a function of temperature
exhibited by the smart gels.
· Some smart materials are self repaired materials as the materials can repaired
itself if damaged occurs.
· Smart materials have better durability and reliability.
· Smart materials reduces the production cost.
· Smart materials get smarter with ability to better control of shape & size.
· Smart materials can easily cooled with nano fluids.
· Smart materials extensively used in Textile Industries changes the face of this
industries.
· Smart materials reduces the weight of component used in the mechanical &
electrical industries.
· The Structural Health Monitoring of smart materials can easily & perfectly
done.
4 | P a g e
5. · Smart materials are gives excellent results in Communication Technology &
Information Technology’
2.3 LIMITATIONS OF SMART MATERIALS:
· Smart materials are very expensive.
· They are not easily available in market.
· They are very sensible so they need proper care while storage it.
· Smart materials needs proper skill to recognize it among other materials.
2.4APPLICATIONS OF SMART MATERIALS:
· In the Fast response valve.
· High power density hydraulic pumps.
· Active bearings for reduction of machine noise.
· In the manufacturing of footwear.
· Sports equipment & precision machining.
· Vibration & acoustic sensors.
· In the dampers.
· There are many possibilities for such materials and structures in the man-made
world.
· Engineering structures could operate at the very limit of their performance
envelopes and to their structural limits without fear of exceeding either.
· The different fields have various applications of smart materials. The
different fields are listed below.
1. Application of Smart materials in Medical Technology.
2. Application of Smart materials in Automobiles Engineering.
3. Application of Smart materials in Mechanical Engineering.
4. Application of Smart materials in Civil Engineering.
5. Application of Smart materials in Aerospace.
6. Application of Smart materials in Mechatronics.
5 | P a g e
6. 3. VARIOUS SMART MATERIALS:
3.1 Piezoelectric materials:
Fig. 3.1 shows Piezoelectric materials
· Piezoelectric materials have two unique properties which are interrelated.
· When a piezoelectric deformed, it gives off a small but measurable electrical
discharge. Alternately, when an electrical current is passed through a piezoelectric
material it experiences a significant increase in size.
· The piezoelectric effect describes the relation between a mechanical stress and an
electrical voltage in solids.
· It is reversible: an applied mechanical stress will generate a voltage and applied
voltage change the shape of solid by a small amount ( up to 4% ).
· Piezoelectric materials are widely used as sensors in different environments.
· They are often used to measure fluid density, fluid viscosity, fluid composition
and the force of the impact.
· The example of piezoelectric material is the safety air bags in the car.
6 | P a g e
7. 3.2 Electro-rheostatic and Magneto-rheostatic Materials:
· Electro-rheostatic (ER) and Magneto-rheostatic (MR) materials are fluids, which
can experience a dramatic change in their viscosity. These fluids can change from
a thick fluid (similar to motor oil) to nearly a solid substance within the span of a
millisecond when exposed to a magnetic or electric field; The effect can be
completely reversed just as quickly when field removed.
· MR fluids experience a viscosity change when exposed to magnetic field, while
ER fluids experience similar changes in an electric field.
Fig 3.2. The MR fluid is liquid as shown on the left, when no magnetic field is
present, but turns solid immediately after being placed in a magnetic field on the
right.
· MR fluids are being developed for use in car shocks, damping, washing machine
vibration, prosthetic limbs, exercise equipment and surface polishing of machine
parts.
· ER fluids have mainly been developed for use in clutches and valves as well as
engine mounts design to reduce noise and vibration in vehicles.
7 | P a g e
8. 3.3Shape memory alloys:
· Shape memory alloys (SMA’s) are metals, which exhibit two very unique
properties, pseudo elasticity and the shape memory effect.
· These two properties are related to solid phase change in which only
molecular rearrangement will be there, means substance will remain solid.
· The two phases which occur in shape memory alloys, are Martensite and
Austenite.
· The temperatures at which each of these phases begin and finish forming are
represented by the following variables: Ms, Mf, As, Af.
· The amount of loading placed on a piece of shape memory alloy increases the
values of these four variables as shown in Figure.
· The initial values of these four variables are also dramatically affected by the
composition of the wire (i.e. what amounts of each element are present).
Fig 3.3(a) shows a temperature – load diagram for Martensite & Austenite
8 | P a g e
9. Fig 3.3(b) scopic Diagram of the Shape Memory Effect
Fig 3.3(c) Shape memory polymers.
9 | P a g e
10. Fig 3.3(d) Shape memory wire.
3.4 Ken Materials:
· ‘Mechatronics’ smart structures have demonstrated the capability of this
technology, but raise the important issue of the complexity of the resulting
system.
· These smart structures contain a multitude of different materials, and in the
case of sensual structures will generate large amounts of data.
· This increase in complexity has been described by Hiroaki Yanagida as the
‘spaghetti syndrome’, and has led to the proposal for an alternative type of
smart structure based on the concept of ken materials (the Chinese characters
meaning wisdom, structure, monitoring, integration and benignity being
pronounced ken in the Japanese language). Such structures would move
functional integration into the constituent engineering materials themselves.
· Few practical examples of ken materials exist at present, although a structural
composite based on this concept has been developed in Japan.
· This is a carbon and glass fibre reinforced concrete which is able to monitor
concrete structures using only the structural reinforcing fibres, thus reducing
the complexity of the system.
10 | P a g e
11. Fig 3.4 Structure of ken materials
3.5. Biomimetics:
· ‘Dumb’ materials and structures contrast sharply with the natural world
where animals and plants have the clear ability to adapt to their
environment in real time.
· The field of biomimetics, which looks at the extraction of engineering
design concepts from biological materials and structures, has much to
teach us on the design of future manmade materials.
· The process of balance is a truly ‘smart’ or intelligent response, allowing,
in engineering terms, a flexible structure to adapt its form in real time to
minimise the effects of an external force, thus avoiding catastrophic
collapse.
· The natural world is full of similar properties including the ability of
plants to adapt their shape in real time (for example, to allow leaf surfaces
to follow the direction of sunlight), limping (essentially a real time change
in the load path through the structure to avoid overload of a damaged
region), reflex to heat and pain. The materials and structures involved in
natural systems have the capability to sense their environment, process
this data, and respond.
· They are truly ‘smart’ or intelligent, integrating information technology
with structural engineering and actuation or locomotion.
11 | P a g e
12. Fig 3.5 microstructure of Biomimetics.
3.6 Dumb Materials:
· Most familiar engineering materials and structures until recently have been
‘dumb’. They have been preprocessed and/or designed to offer only a limited set
of responses to external stimuli.
· Such responses are usually non-optimal for any single set of conditions, but
‘optimized’ to best fulfil the range of scenarios to which a material or structure
may be exposed.
· For example, the wings of an aircraft should be optimised for take-off and
landing, fast and slow cruise etc. However, despite the partial tailoring of these
structures by the use of additional lift surface, which we see deployed as each
passenger aircraft approaches an airport, such engineering components are not
fully optimized for any single set of flight conditions.
· Similarly, advanced composites such as glass and carbon fibre reinforced
plastics, which are often thought to be the most flexible engineering materials
since their properties (including strength and stiffness) can be tailored to suit the
requirements of their end application, can only be tailored to a single
combination of properties.
12 | P a g e
13. 4. CONCLUSION
Smart materials are able to sense and respond to environment around them.
· They have the potential to improve existing technology and add new functionality to
products.
· They have applications in a wide variety of areas and they have an important role in
waste reduction.
· They have a capability to work in multifunctional way.
· Although smart materials and systems have been researched for decades, commercial
exploitation has been slow. The interdisciplinary nature of the subject and divide
between scientist and designers has slow this exploitation.
Thus we conclude that there is an important role of smart materials in our life.
13 | P a g e
14. 5. THE FUTURE
· The development of true smart materials at the atomic scale is still some way
off, although the enabling technologies are under development.
· These require novel aspects of nanotechnology (technologies associated with
materials and processes at the nanometer scale, 10-9m) and the newly
developing science of shape chemistry.
· Materials and structures which respond to their environment, including their
human owners, is a somewhat alien concept.
· It is therefore not only important that the technological and financial
implications of these materials and Worldwide, considerable effort is being
deployed to develop smart materials and structures.
· The technological benefits of such systems have begun to be identified and,
demonstrators are under construction for a wide range of applications from
space and aerospace, to civil engineering and domestic products.
· In many of these applications, the cost benefit analyses of such systems have
yet to be fully demonstrated.
· The Office of Science and Technology’s Foresight Programmed has
recognized these systems as a strategic technology for the future, having
considerable potential for wealth creation through the development of hitherto
unknown products, and performance enhancement of existing products in a
broad range of industrial sectors.
· The concept of engineering structures are addressed, but also issues associated
with public understanding and acceptance.
· The core of Yanagida’s philosophy of ken materials is such a concept. This is
‘techno-democracy’ where the general public understand and ‘own’ the
technology.
· Techno-democracy can come about only through education and exposure of
the general public to these technologies.
· However, such general acceptance of smart materials and structures may in
fact be more difficult than some of the technological hurdles associated with
their development.
· Now in future new ECO-FRIENDLY smart materials are developed for
reducing the harmful effect of some smart materials.
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15. 6. REFERENCES
Kumar Dr. Rakesh and Kumar Dr. Ram: ICI journal; pp. 15-18; April- June 2005.
http://dbtindia.nic.in
http://www.cs.ualberta.ca
http://www.answers .com
http://structure.nuae.nagoya-u.ac.jp
· Primary author: Cliff Friend
Source: Abstracted from Materials World, vol. 4, pp. 16-18, 1996 “Smart
materials: the emerging technology”.
· http://amptial.alionscience.com/products and services/product.html
· http://smart-material.com
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