it is understanding about the undamped free vibration and its equation and function.........its very usefull for vibration system.......
its gives derivation of undamped free vibration.....
What is a continuous structure?
How to analyse the vibration of string, bars and shafts?
How to analyse the vibration of beams?
#WikiCourses
https://wikicourses.wikispaces.com/Topic+Vibration+of+Continuous+Structures
https://eau-esa.wikispaces.com/Vibration+of+structures
This document gives the class notes of Unit 5 shear force and bending moment in beams. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
it is understanding about the undamped free vibration and its equation and function.........its very usefull for vibration system.......
its gives derivation of undamped free vibration.....
What is a continuous structure?
How to analyse the vibration of string, bars and shafts?
How to analyse the vibration of beams?
#WikiCourses
https://wikicourses.wikispaces.com/Topic+Vibration+of+Continuous+Structures
https://eau-esa.wikispaces.com/Vibration+of+structures
This document gives the class notes of Unit 5 shear force and bending moment in beams. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
This document gives the class notes of Unit 6: Bending and shear Stresses in beams. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
Basic Definitions of Force – Stress – Strain – Elasticity. Shear force – Bending Moment –
Torsion . Simple problems on Shear force Diagram and Bending moment Diagram for cantilever and simply supported beams.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
1. Department Of Civil Engineering
Name: Pias Chakraborty
4th Year 2nd Semester
ID: 10.01.03.139
2. • Course No.
: CE 416
• Course Title
: Pre-stressed Concrete Lab.
• Course Teacher : Sabreena Nasrin Madam &
Munshi Galib Muktadir Sir
Topic Of Presentation: Shear Stress
3. • In solid mechanics, stress is defined as force
divided by cross sectional area, i.e. stress =
force/area. Stress is generally two types.
STRESS
NORMAL
STRESS
SHEAR
STRESS
4. • The shear stress (τ) acts parallel to the selected plane
& determined by τ = F / .
• Figure shows a rod where forces applied parallel to the
rod’s cross sectional area. The stress here is defined as
shear stress.
5.
6. • Pure Shear- Pure shear stress is related to pure shear
strain(ɤ) & denoted by τ =ɤG, G=shear modulus.
• Beam shear- Beam shear is defined as the internal
shear stress of a beam caused by the shear force
applied to the beam, i.e. τ= VQ/IB.
where V = total shear force at the location in
question; Q= statical moment of area ; B = thickness
in the material perpendicular to the shear;
I = Moment of Inertia of the entire cross sectional
area.
7. • By finding the angle between force and sectional
area, i.e. whether this is zero, 90 or something in
between them. When θ = 0 there is only shear
stress, for θ = 90 we just have normal stress and
for θ = 45 we have both shear and normal
stresses.
8. • Shear stress can cause deformation. Figure
shows the shear stress and its deformation on
a plane. This plane is subjected to the shear
stress τ. Shear stress acts tangential to the
surface of material element. It observed to
deform into a parallelogram.
9. • Shear stresses are usually maximum at the neutral
axis of a beam (always if the thickness is constant
or if thickness at neutral axis is minimum for the
cross section, such as for I-beam or T-beam ), but
zero at the top and bottom of the cross section as
normal stresses are max/min.
10. • When a beam is subjected to a loading, both
bending moments, M, and shear forces, V, act
on the cross section. Let us consider a beam of
rectangular cross section. We can reasonably
assume that the shear stresses τ act parallel to
the shear force V.
11. • Shear stresses on one side of an element are
accompanied by shear stresses of equal
magnitude acting on perpendicular faces of an
element. Thus, there will be horizontal shear
stresses between horizontal layers (fibers) of the
beam, as well as, transverse shear stresses on
the vertical cross section. At any point within the
beam these complementary shear stresses are
equal in magnitude.
12. • The existence of horizontal shear stresses in a
beam can be demonstrated as follows.
• A single bar of depth 2h is much stiffer that
two separate bars each of depth h.