1.

A strain gauge oriented in a direction at an angle θ with x-axis, measures:

A. εxsin2 θ + εycos2 θ + τxycos θ sin θ
B. εx cos2 θ + εy sin2 θ + 2τxy cos θ sin θ
C. εx cos2 θ + εy sin2 θ + τxy cos θ sin θ
D. εx cos2 θ + εy sin2 θ - τxy cos θ sin θ
Answer» D. εx cos2 θ + εy sin2 θ - τxy cos θ sin θ


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