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August 29, 2015

Homework Help: Engineering Materials

Posted by Z32 on Thursday, October 8, 2009 at 1:04pm.

Using mechanics of materials principles (ie. equations of mechanical equilibrium applied to a free-body diagram), derive the following equations.

sigma' = sigma cos^2 θ = sigma(1+cos 2θ / 2)

and tau = sigma sin θ cos θ = sigma( sin2θ / 2)

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