3.2 Given a wedge-shaped stress element in the figures below and trigonometric identities, u equations of equilibrium to
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3.2 Given a wedge-shaped stress element in the figures below and trigonometric identities, u equations of equilibrium to
3.2 Given a wedge-shaped stress element in the figures below and trigonometric identities, u equations of equilibrium to derive the transformation equations for plane stress. XI "₁ Ao sec e Txayi (F σ₂A0 X "T T (a) Stresses (b) Forces 1 1 cos²0 = (1 + cos 20), sin²0 = ₁₁ 1 (1-cos²0), sin cos 0 = 2 Txv 0x1 6 Try Ao TxAo tan e Ao sec 8 ay Ao tan X sin 20
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