25 7175 inches the spring length is chosen arbitrarily

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Unformatted text preview: ven. 2. Comparisons are made at the two time points bracketing the theoretical time of zero velocity. 1–184 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. VM82: Simply Supported Laminated Plate Under Pressure Overview Reference: J. N. Reddy, “Exact Solutions of Moderately Thick Laminated Shells”, ASCE Journal Engineering Mechanics, Vol. 110 No. 5, 1972, pg. 805. Analysis Type(s): Static Analysis (ANTYPE = 0) Element Type(s): Linear Layered Structural Shell Elements (SHELL99) 3-D 8-node Layered Structural Solid Elements (SOLID46) Input Listing: vm82.dat Test Case A simply-supported square cross-ply laminated plate is subjected to a uniform pressure po. The stacking sequence of the plies is symmetric about the middle plane. Determine the center deflection δ (Z-direction) of the plate due to the pressure load. Figure 82.1 Simply Supported Laminated Plate Problem Sketch Material Properties Ex = 25 x 106 N/m2 Ey = 1 x 106 N/m2 υxy = 0.25 (Major Poisson's ratio) Geometric Properties a = 10 m...
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