TALAT Lecture 1502: Criteria in Material SelectionCORE-Materials
This lecture gives a background to why, by whom, when and how material selection is performed; it describes the pitfalls of non-systematic approaches; it gives the concept of pre-selection and how it is applied; it creates an understanding about unbiased selection of materials and how it is performed; it explains discriminating material selection and how it is applied; it demonstrates optimization in material selection and how it is applied. Elementary background in materials engineering is assumed.
TALAT Lecture 1502: Criteria in Material SelectionCORE-Materials
This lecture gives a background to why, by whom, when and how material selection is performed; it describes the pitfalls of non-systematic approaches; it gives the concept of pre-selection and how it is applied; it creates an understanding about unbiased selection of materials and how it is performed; it explains discriminating material selection and how it is applied; it demonstrates optimization in material selection and how it is applied. Elementary background in materials engineering is assumed.
Material testing services encompass the comprehensive evaluation of the physical, mechanical, chemical, and thermal properties of various materials across industries such as manufacturing, construction, aerospace, automotive, and electronics. These services include mechanical testing to assess strength, hardness, and durability; chemical analysis to determine composition and purity; metallurgical analysis to examine microstructure and integrity; non-destructive testing to detect flaws and defects without damage; thermal analysis to study heat behavior; environmental testing to evaluate performance in real-world conditions; and electrical testing to ensure safety and reliability. By providing crucial insights into material quality, integrity, and performance, material testing services enable manufacturers, designers, and engineers to make informed decisions, optimize processes, and enhance product quality, durability, and safety.
Evaluation Methods for Material Selection with Case StudyAditya Deshpande
Here I have discussed meaning and various material selection methods which can be used effectively.
To elaborate concept of material selection, a case study is provided of table along with mathematical calculations and process steps to reach at final optimum material selection.
Thus case study shows potential of Weighted Property Indices method. The case study serves as a beneficial example for material selection of modern automobiles.
Brief Overview of Material Testing and Its Significance.docxHarish94564
Discover the importance of material testing and its applications in various industries. Learn about material testing lab India and how it contributes to quality assurance.
There are over 100,000 engineering materials to choose from. The typical design engineer should have ready access to information on 30 to 60 materials, depending on the range of applications he or she deals with.
Metz lab Pvt.Ltd. conducting courses and give practical training for engineers about metallurgy.
Basis Metallurgy
Heat treatment
Failure analysis
Selection of materials
Metallurgical testing
Engineering materials
Surface engineering
Castings and Forgings defects
apart from that customized training also given based on special request by the customers
Design of novel heterogeneous thermomechanical tests using topology-based opt...Vform Xsteels
Nowadays, the development and design of new mechanical parts are performed using virtual manufacturing tools. For this purpose, numerical simulation software uses complex material constitutive models to reproduce real material behavior. However, the reliability of the simulation’s results is conditioned by the accuracy of the input data. The calibration of material models depends on a proper material characterization, which turns to be expensive due to the required large number of mechanical tests.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
2. Credit hours: 3
Prerequisites: MM102
Text Books:
“Testing of Materials” by Vernon John, Macmillan Education Ltd, 1992
“Principles of Testing and Inspection of Engineering Materials” by H.E Davis, G.E Troxell
Reference Books:
“Non-Destructive Testing” by J.B Hull, 1988
“Mechanical Metallurgy” by G.E Dieter, McGraw-Hill, 1988
“Non-Destructive Testing” by R. Halmshaw, 2nd Edition, 1991
3. Course Evaluation
Final Term Exam: 45%
Mid Term Exam: 25%
Quizzes: 15%
Assignments: 5% (GA +IA)
Course Project/presentations: 10%
4. metgiki@gmail.com
Send an email to the following course email address.
Make the subject of your email as “ MM221-[Your Name-Reg No]”
Contact Details
Office : G 09
Phone: 2427
5. Course Syllabus
Introduction to Materials evaluation techniques
Classification of materials evaluation techniques
Destructive testing (DT)
Non-Destructive Testing (NDT)
Introduction to spectroscopy
Thermocouples and Temperature measurements
Strain gauges and load Cells
Microscopy (SEM, TEM, AFM)….
…
6. Course Objectives
Introduction to testing and inspection
Engineering Materials
Properties and Selection of Materials
Materials Testing
Specification of Materials
Standard Specification of Materials
Standards
Lecture – 1,2,3
7. Objectives of this course:
To know basic concepts related with testing and inspection of materials
To use valid tests for the desired property measurements
To understand various properties of materials and their application
To acquire knowledge and skills for preparing technical test reports
To learn about various laboratory equipment and their working principles
Lecture – 1
8. Materials
Evaluatio
n
specificatio
ns
Mass
production
R & D
Approval of
Product
Introduction
Testing refers to the physical performance of
operations (tests) to determine quantitative
measures of certain properties (aims to
determine quality)
Inspection is the observation of the processes
and products of manufacture for the purpose of
ensuring the presence of desired qualities (aims
to control quality)
10. Class Property Class Property
Physical
Dimensions
Shape
Density
Porosity
Moisture
Microstructure
Macrostructure
Mechanical
Tensile Strength
Shear Strength
Flexure Strength
Endurance
Stiffness
Plasticity
Ductility
Brittleness
Chemical
Compound Composition
Acidity Alkalinity
Resistance to Corrosion
Thermal
Specific Heat
Expansion
Conductivity
Electrical &
Magnetic
Conductivity
Magnetic Permeability
Galvanic Action
Optical
Color
Light Transmission
Light Reflection
Properties of Engineering Materials Lecture –2
11. Selection of Engineering Materials
Major factors effecting selection process:
Materials Selection “Technological Root”
1.
Component
shape
2.
Dimensional
tolerence
3.
Mech.
Properties
4.
Fabrication
requirement
s5.
Service
requirement
s
6.
Cost of
material
7.
Cost of
processing
Designer Specification
1.
Previous
knowledge on
performance in
service
2.
Test Results data
on performance
8.
Availability
12. Materials Testing
Objectives of testing:
Quality Control Check
Materials Research and Development-R&D
Measure fundamental Properties-Scientific testing
Field Tests
Laboratory
Tests
Defensible, repeatable results in controlled settings
Real world results in dynamic setting
15. Significance of Materials Testing
Measures a basic property that can be used directly in design
Performance of a material in Service
Identify materials that would give satisfactory performance
Example:
Tension Test Vs Charpy Impact Test
16. Specification of Materials
Consumer Producer
Item
purchase
Standard of
quality
Standard Specification:
A document, developed and used by consensus of the
stakeholders, which describes how a product is to be
obtained or used.
Standard methods of
testing / definitions
Materials
specification
Testing
method
Lecture –3
17. 1. Reduce misunderstanding between consumer and producer
2. uniformity in production, reducing wastage and cost
3. Lower unit costs by making possible the mass production of
standardized commodities
4. Use of a specification that has been tried is possible
5. Comparison of test results possible
Standard Specification of Materials
Advantages
Freeze Practices
18. Standard Specification of Materials
ASTM
International
Founded 1902 – (one of the oldest voluntary consensus standards
development organizations)
Broad global membership – over 125 countries
More than 135 standards writing committees covering hundreds
of fields; more than 12,000 standards
Open, balanced, transparent process
www.astm.org
Standardization Materials Improvement
• Standard approval process
19. • British Standards BS
• American Petroleum Institute. API
• American Society for Mechanical Eng. ASME
• Dutch Industrial Norm. DIN
• International Standard Organization ISO
• The society of automotive engineers SAE
• American Petroleum Institute
• American Concrete Institute
• American Bureau of shipping
Other Standardizing
organizations/standards
20. Home Assignment # 1:
Write down any 5 ASTM standards with a brief note on each of them.
(Refer to ASTM Standards Handbooks)
Due Date: 3rd Sep. 2012 till 5 PM
Office: G09
