Discussion
With principal stresses of \( 134 \) and \( 69 \) MPa, the von Mises equivalent stress is nearest to
Answer: A
Evaluating \( \sqrt{\sigma_1^2 - \sigma_1\sigma_2 + \sigma_2^2} = \sqrt{17\,929 - 9\,212 + 4\,733} = \sqrt{13\,450} = 116 \) MPa. Note that the equivalent stress is below the larger principal stress, because the second one is of the same sign.
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