Equation Sheet Test 1

Equation Sheet Test 1 - Failure theories: Maximum Normal...

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Failure theories: Maximum Normal Stress Criterion: 1 1 2 2 , , , t c t c S S S S (at failure) Maximum Shear Stress (Tresca) Criterion: 1 2 1 2 ,, Y Y Y S S S (at failure) Maximum Distortion Energy (Von-Mises) Criterion 2 2 2 1 1 2 2 Y S   (at failure) Fatigue: Goodman Equation ,0 1 m am au SS     S m = mean stress S a = stress amplitude S u = ultimate stress m = material property Virtual work of a uniaxial bar: Internal virtual work of a beam:
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