Engineering Board Exam Reviewer · Strength of Materials · hard
At a point in a stressed body, x = 80 MPa (tension), y = 20 MPa (tension), and xy = 30 MPa. What is the maximum in-plane shear stress?
- 42.43
- 30
- 92.43
- 60
Answer
A. 42.43
Solution
max = sqrt(((σx-σy)/2)² + xy2) = sqrt(30² + 302) = 42.43 MPa.
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