In order to determine the load P and its location s, a strain gage rosette is attached to the circular bar near the wall. Each gage is oriented 120^{o} apart as shown.

What is known:

When loaded, the gages report strains of
ε_{a} = 224.8 μ
ε_{b} = -118.3 μ
ε_{c} = 132.9 μ

Assume the strain gage rosette is at the wall.

The bracket material is steel, E = 29,000 ksi and ν = 0.29.

Question

What is the load P and distance s?

Approach

Determine the strains in the x-y coordinate system.

Calculate the stresses from the strains.

Find the bending stress and the twisting stress caused by the offset load P.

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