Download GTU B.Tech 2020 Winter 7th Sem 2171916 Applied Mechanics Of Solid Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2171916 Applied Mechanics Of Solid Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2171916 Date:19/01/2021
Subject Name:Applied Mechanics of Solid
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Enlist theory of failures and explain any one.
03

(b) Define: 1) Body forces, 2) Surface forces
04

(c) Explain Mohr's circle diagram for principal stresses.
07



Q.2 (a) Write the use of FOS in design.
03

(b) List out the theories of failure and explain any one of them.
04

(c) Derive equation of Principal stresses in 2D.
07




Q.3 (a) Explain Circular Polariscope.


(b) Explain the plane stress and plane strain. 04

(c) Write and discuss incremental constitutive relation for elastic ? plastic material.
07
Also state basic assumptions for the theory.



Q.4 (a) Define the state of pure shear.
03

(b) What do you mean by the principal of virtual work.
04

(c) Derive stress distribution using Airy's stress function in simply supported beam
07
subjected to pure bending.
Q.5 (a) Explain Hooke's law for elastic material.
03

(b) Write a short note on octahedral stresses.
04

(c) Explain stress strain relation in terms of plastic flow
07



Q.6 (a) Explain Bouschinger effect.
03

(b) Explain the Principle of virtual work and prove the relation for elastic
04
solids.

(c) Explain the stress integration of Drucker - Prager material model
07
Q.7 (a) Describe the term Strain Hardening.
03

(b) State the term Bouschinger Effect for an elasto-plastic material
04

(c) Write a note on Druker's stability postulate for stability of work-hardening
07
materials.



Q.8 (a) What do you mean by principal of super position?
03
(b) Explain the work hardening of a material.
04
(c) Explain Normality, Convexity and Uniqueness for an elastic solid.
07

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