A Plane Stress Element on a Bar in Uniaxial Stress $\sigma_{\theta}=78 \mathrm{MPa}$

question 46

Short Answer

A plane stress element on a bar in uniaxial stress has a tensile stress of $\sigma_{\theta}=78 \mathrm{MPa}$ (see fig.). The maximum shear stress in the bar is
Approximately: (A) $29 \mathrm{MPa}$
(B) $37 \mathrm{MPa}$
(C) $50 \mathrm{MPa}$
(D) $59 \mathrm{MPa}$

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Definitions:

Variable Schedule

A variable schedule in the context of reinforcement refers to a procedure in which rewards are given at unpredictable intervals, influencing behavior.

Extinction

In psychology, the gradual weakening of a conditioned response when the conditioned stimulus is presented without the unconditioned stimulus.

Conditioned Reinforcer

A stimulus that has become reinforcing through its association with a primary reinforcer.

Variable-Ratio Reinforcement Schedule

A reinforcement strategy where a response is reinforced after an unpredictable number of responses, which typically leads to high and steady response rates.