Exam 2 Theory q Flashcards

1
Q

Name one primary concern for learning torsional on a circular shaft.

A

The torsional deformation is easier to find/calculate on a circular shaft, rather than a triangular/rectangular shaft

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2
Q

In regards to stress concentration factor, changes in the cross section of a member loaded in torsion cause the local stress near the changes to be higher or lower. Explain.

A

It would be higher. σshear=ktσnormal

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3
Q

Definition of centroid

A

Center of mass, a balancing point

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4
Q

Definition of moment of inertia

A

Defined as the sum of the products obtained by multiplying each infinitesimally small element of the area by the square of its distance from the axis.

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