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ESE 90 DAYS_Principal Stress and Principal Strain

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Question 1

In a plain strain condition in XY plane, normal strain in X and Y directions are equal to zero and shear strain is equal to 3 x 10–6. What is the diameter of Mohr’s circle of strain for these strain values?

Question 2

Which of the following pairs is Not correctly matched for the mohr’s circle shown below:

1. Minimum principal strain =100μ

2. Maximum shear strain = 300μ

3. Normal strain on the plane of maximum shear strain = 150μ

Question 3

The principal stresses at a point a stressed material are

.
The volumetric strain will be

Question 4

Principal stresses at a point are 80 N/mm2 and 40 N/mm2 both tensile. The yield stress in simple tension for this material is 200 N/mm2 The values of factors of safety according to maximum principal stress theory and maximum shear stress theory, respectively, are

Question 5

A square element of a structural part is subjected to biaxial stresses as shown in the figure. On a plane along BD, the intensity of the resultant stress due to these conditions will be
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Jun 30ESE & GATE CE