This document discusses solid mechanics and the behavior of solid materials. It covers topics such as stress, strain, types of stresses and strains, stress-strain curves, beams, deflection, springs, and leaf springs. Solid mechanics studies how solid materials deform and move under forces, temperature changes, and other external influences.

1. STRENGTH OF MATERIALS
Solid mechanics is the branch of
mechanics that studies the behavior of
solid materials.

2. STRENGTH OF MATERIALS
Solid mechanics is the branch of
mechanics that studies the behavior of
solid materials.

3. STRENGTH OF MATERIALS
Solid mechanics is the branch of
mechanics that studies the behavior of
solid materials.

4. STRENGTH OF MATERIALS
Motion and deformation of material under action of
• Force
• Temperature change
• Other external or internal agents
These changes lead us to some properties that are
called Mechanical properties

5. Stress and Strain
Stress in a material: In solid mechanics, stress is
a physical quantity that express the internal
force per unit area that neighboring particles of
a continuous material exert on each other.
• Strain: It is the deformation of material due to
stress
• Strain = del l/L

6. TYPES OF STRESS

7. STRAIN

8. TYPES OF SUPPORTS

10. Stress strain Curve of Mild Iron

11. CANTILEVER BEAM

12. SIMPLY SUPPORTED BEAM

13. Deflection
In engineering, deflection is the degree to which a
structural element is displaced under a load. It
may refer to an angle or a distance.

14. Slope and deflection

16. Springs
A spring is an elastic body, which deflects underload and
recover to its original shape upon release of the load.

17. Leaf Springs

18. Helical compression spring

19. Solid mechanics is the branch
of mechanics that studies the
behavior of solid materials