The finite element representation is modeled by three

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Unformatted text preview: o 50 psi. Figure 218.1 Hyperelastic Circular Plate Project Sketch Material Properties Ex = 1 x 106 psi Nuxy = 0.5 DENS = 0.1 lb/in3 C1 = 80 psi C2 = 20 psi Geometric Properties R = 7.5 in T = 0.5 in Loading Pres = 50.0 psi Analysis Assumptions and Modeling Notes This analysis is first solved as a 3-D SHELL181 model. The full circular plate is reduced to a 7.5 degree sector for analysis. The midplane of the outer edge of the circle is considered to be fixed. A pressure of 50 psi is applied to ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–502 VM218 the bottom surface of the shell sector. The SHELL181 model is solved using standard formulation and the membrane option. In each of the SHELL181 cases, the analysis was performed using reduced integration. The analysis is also performed using a SHELL208 axisymmetric model. Results Comparison Pressure Target ANSYS Ratio 4.0 2.250 2.295 1.020 24.0 6.200 5.707 0.921 38.0 10.900 10.017 0.919 4.0 2.250 2.295 1.020 24.0 6.200 5.707 0.921 38.0 10.900 10.017 0.919 4.0 2.250 2.301 1.023 24.0 6.200 5.730 0.924 38.0 10.900 10.079 0.925 4.0...
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