ANSYS varification manual 9

# Determine the true large deflection free end

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Unformatted text preview: e middle wall thickness. Internal pressure is then removed and the cylinder is subjected to a rotation ω about its center line. Determine the radial σr and tangential σt stresses at the inner wall and at an interior point located at r = Xi. Figure 25.1 Long Cylinder Problem Sketch ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–64 VM25 Material Properties E = 30 x 106 psi υ = 0.3 ρ = 0.00073 lb-sec2/in4 Geometric Properties a = 4 inches b = 8 inches Xi = 5.43 inches Loading p = 30,000 psi ω = 1000 rad/sec Analysis Assumptions and Modeling Notes The axial length is arbitrarily selected. Elements are oriented such that surface stresses may be obtained at the inner and outer cylinder surfaces. POST1 is used to display linearized stresses through the thickness of the cylinder when it is subjected to an internal pressure. Results Comparison Target Ratio 0.0078666 0.0078667 1.000 Stressr, psi (r = 4 in) -30000. -29908. 0.997 Stressr, psi (r = 6 in) -7778. -7757. 0.997 Stressr, psi (r = 8 in) 0. 6.734 -- Stresst, psi (r = 4 in) 50000. 49908. 0.998 Stresst, psi (r = 6 in) 27778. 27758. 0.999 Stresst, psi (r...
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