CE Board Exam Randomizer

Combined Stresses and Mohr Circle

Combined Stresses Visualized

$$ \sigma = \frac{P}{A} $$

$$ f_b = \frac{M c}{I} $$

$$ \tau_{\text{torque}} = \frac{T r}{J} $$

$$ \tau_{\text{shear}} = \frac{V Q}{I b} $$

Problem: Cast-Iron with Axial and Bending Stresses

A cast iron is shown below. The allowable stresses are 30MPa in tension and 70MPa in compression.
a. Determine the safe value of P (in kN) based on the allowable tensile stress.
b. Determine the safe value of P (in kN) based on the allowable compressive stress.

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