The impulse is applied over 1 integration time step

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Unformatted text preview: s. The target solution for the maximum ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–177 VM78 Tsai-Wu failure criterion (FC3) is obtained from equation 2–92 of the ANSYS, Inc. Theory Reference). Since σy = σz = σxy = σyx = 0, most terms vanish and the equation reduces to: FC3 = σ2 x σ2 + xz , where σf = σf (by default) xz xy σf 2 σf 2 x xz By substituting relations for σxz (from S. Timoshenko, J. N. Goodier, Theory of Elasticity), it can be shown that σx and FC3 has a maximum value at the middle plane and: FC3max = 9F2 4 W 2h2σf 2 xy = 225.0 POST1 is used to find the maximum value of the Tsai-Wu failure criterion (FCMX). Results Comparison Target ANSYS Ratio Stressxz , psi (z = h/2) 0.0 0.0[1] 1.000 Stressxz , psi (z = h/4) 5625.0 5625.0[2] 1.000 Stressxz , psi (z = 0) 7500.0 7500.0[3] 1.000 FC3max (FCMX) 225.0 225.0 1.000 1. SXZ for Layer, BOT or Layer 4, TOP (for any element) 2. ILSXZ for Layers 1-2 (or 3-4) 3. ILSXZ for Layers 2-3 (also ILMX) Poisson's ratio is set to z...
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