Question 1 For a body subjected to plane stress 0 A. Two parallel faces of the s

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Question 1 For a body subjected to plane stress 0 A. Two parallel faces of the stress element are free of stress 0 B. There are three independent stress components ° C. The face that is stress-free is a principal plane 0 D. All of the above Question 2 For the case of plane stress, the normal stress on the plane corresponding to the maximum shear stress is equal to: 0 . The maximum principal stress OC. The minimum principal stress The average normal stress: (maximum principal stress + minimum principal stress)/2 Save and Submit Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answer

Explanation / Answer

1) Option C is correct. The face that is stress free is a principal plane.

2) Option D is correct. It is the average normal stress which acts on maximum shear stress plane.

3) Option B is correct. It is the coordinate to draw mohr circle (sigma x, tau xy) and (sigma y, tau xy)

4) Option D is correct. rotate 60 degrees counter clock wise from x axis.

5) Maximum shear stress=(50-20)/2 =15mpa. so, option C is correct.

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