Engineering Board Exam Reviewer · Strength of Materials · medium

A bar is subjected to a uniaxial tensile stress of 120 MPa. What is the maximum shear stress developed at any plane in the bar?

  1. 120
  2. 30
  3. 60
  4. 84.85

Answer

C. 60

Solution

For uniaxial stress, the maximum shear occurs on planes at 45° and equals max = /2 = 120/2 = 60 MPa.

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