AE-JE Foundation CE: Strength Of Material Quiz 4

The resistance strain roster indicates a strain of -400, +800, and +500 along x, y, and 45 axes. The shearing strain Y_xy is

When a member is subjected to axial tensile load, the maximum shear stress is equal to

A point in a piece of stressed material are σ_X= 400 N/mm², σ_Y= -100 N/mm², and τ_xy= 0. The value of principle stresses in N/mm² are

A point in a solid shaft under action of bending moment and twisting moment develops principal stresses as σ₁ = 80 N/mm² (tensile) and σ₂ = 30 N/mm² (compressive). Shaft material is ductile with yield strength of 210 MPa, Poisson’s ratio μ = 0.25. Determine the factor of safety according to maximum principal strain theory.

In case of biaxial state of stress, the diameter of Mohr’s circle is:

Match the following:

If there is no shear stress on a body and direct stresses are to be identical, then for such state of stress the radius of Mohr’s circle is

Design of shaft made of brittle materials is based on

The most appropriate failure theory for ductile materials is:

Principle stress in a point of elastic material is 1.5sigma (tension), .5sigma (compression). The elastic limit in tension is 220N/mm² and u=.3. The value of sigma at failure when computed by max Shear stress theory is