The modulus of rigidity of a material is 0.8 x 105 N/mm2. When a 6mm x 6mm rod of this material is subjected to an axial pull of 3600 N, it was found that the lateral dimension of the rod changed to 5.9991 mm x 5.9991 mm. Find the poisson’s ration and modulus of elasticity.
Answers
1. Strength of Materials CIE 102 [3 1 0 4] for First Year B.E. Degree Students 1
2. COURSE CONTENT IN BRIEF 1. Simple stress and strain 2. Statically indeterminate problems and thermal stresses 3. Shearing force and bending moment 4. Stresses due to bending 5. Stresses due to shearing 6. Slope and deflection of beams 7. Stresses due to Torsion in circular shaft 8. Variation of stress at a point 9. Stresses due to fluid pressure in thick and thin cylinder 10. Stability of columns 2
3. Books for Reference 1. Machanics of Materials, by E.P.Popov 2. Machanics of Materials, by E J Hearn 3. Strength of materials, by Beer and Johnston 4. Strength of materials, by F L Singer & Andrew Pytel 5. Strength of Materials, by B.S. Basavarajaiah & P. Mahadevappa 6. Strength of Materials, by Ramamruthum 7. Strength of Materials, by S S Bhavikatti 3
4. •Normal stress and strain •Hooke’s law •Modulus of elasticity •Tension test on ductile and brittle materials • Factor of safety and allowable stress •Poisson's ratio •Shear stress and shear strain •Modulus of rigidity •Tapering bar and stepped bar subjected to axial load CHAPTER – I Simple stress & strain 4
5. The subject strength of materials deals with the relations between externally applied loads and their internal effects on bodies. The bodies are no longer assumed to be rigid and the deformations, however small, are of major interest Alternatively the subject may be called the mechanics of solids. CHAPTER – I Introduction The subject, strength of materials or mechanics of materials involves analytical methods for determining the strength , stiffness (deformation characteristics), and stability of various load carrying members.
Answer:The modulus of rigidity of a material is 0.8 x 105 N/mm2. When a 6mm x 6mm rod of this material is subjected to an axial pull of 3600 N, it was found that the lateral dimension of the rod changed to 5.9991 mm x 5.9991 mm. Find the poisson’s ration and modulus of elasticity.
Explanation: