Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.

Like this presentation? Why not share!

- Mechanical Properties of matter by physics101 10714 views
- Modulus of rigidity by Waqas Ahmed 2522 views
- Stress strain curve by Mazadul Hasan 3361 views
- Axial Stress-Strain Curve & Modulus... by Nafizul Nafiz 3620 views
- A presentation on shear stress (10.... by Pias Chakraborty 3198 views
- Stress strain diagram by hknitish 1245 views

13,331 views

11,892 views

11,892 views

Published on

A Presentation on shear stress strain curve & modulus of rigidity

No Downloads

Total views

13,331

On SlideShare

0

From Embeds

0

Number of Embeds

18

Shares

0

Downloads

263

Comments

0

Likes

5

No embeds

No notes for slide

- 1. Welcome To My Presentation Presented byAfsana Ishrat Khan Dept. of Civil Engineering 4th Year 2nd Semester ID: 10.01.03.039
- 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-Strain Curve & Modulus Of Rigidity”
- 3. Shear Stress • Shear stress that acts parallel to a surface. It can cause one object to slide over another. It also tends to deform originally rectangular objects into parallelograms. The most general definition is that shear acts to change the angles in an object. Shear stress = τ = Force(F)/Area(A)
- 4. Shear Strain • It is the amount of deformation perpendicular to a given line rather than parallel to it. The ratio turns out to be tan A, where A is the angle the sheared line makes with its original orientation.. Generally, shear strain = γ = Δx/l
- 5. Shear Stress-Strain Curve • The relationship between the shear stress and shear strain for a particular material is known as that particular material's Shear Stress-Strain curve. • Shear stress-strain curves are an extremely important graphical measure of a material's mechanical properties
- 6. Cont'd
- 7. Various Stress-Strain Curves For Different Materials • Linear elastic material: A linear elastic material is one in which the strain is proportional to stress as shown below:
- 8. Cont'd • Rigid Materials: It is the one which do not experience any strain regardless of the applied stress.
- 9. Cont'd • Perfectly plastic: A perfectly plastic i.e. nonstrain hardening material is shown below:
- 10. Cont'd • Rigid Plastic material(strain hardening): A rigid plastic material i.e. strain hardening is depicted in the figure below:
- 11. Cont'd • Elastic Perfectly Plastic material: The elastic perfectly plastic material is having the characteristics as shown below:
- 12. Cont'd • Elastic – Plastic material: The elastic plastic material exhibits a stress Vs strain diagram as depicted in the figure below:
- 13. Typical Stress-Strain Curve For Ductile Material
- 14. Modulus of Rigidity (Definition) • Modulus of rigidity is the ratio of shear stress to the displacement per unit sample length (shear strain). More specifically modulus of rigidity (or Shear Modulus) is the coefficient of elasticity for a shearing force. • In materials science, shear modulus or modulus of rigidity, denoted by G defined as the ratio of shear stress to the shear strain, i.e. G = τ / γ
- 15. • where, τ=F/A= shear stress, F=force, A=area on which the force acts, γ = Δx/l= shear strain, Δx=transverse displacement, l= initial length. Shear modulus' derived SI unit is the pascal (Pa)
- 16. Modulus of Rigidity (PURPOSE) • Modulus of rigidity, or the shearing modulus, is used to determine how elastic or bendable materials will be if they are sheared, which is being pushed parallel from opposite sides. This property becomes the useful part of many calculations, and it is called the coefficient of elasticity during shearing.
- 17. THANK YOU

No public clipboards found for this slide

×
### Save the most important slides with Clipping

Clipping is a handy way to collect and organize the most important slides from a presentation. You can keep your great finds in clipboards organized around topics.

Be the first to comment