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Unformatted text preview: eometric Properties
a = 15 in
t = 0.01 in Loading
T = 100 lb/in Analysis Assumptions and Modeling Notes
The in-plane radial load F is calculated as: F = 2 πa T = 9424.778 lb. The mass density ρ is calculated as w/gt =
0.00073 lb-sec2/in4, where g = 386 in/sec2. Enough elements are defined to adequately characterize the dynamic
analysis. Prestress effects are turned on. Since the natural frequency solution accuracy for a distributed mass
system depends upon the number of master degrees of freedom (MDOF) selected, all lateral degrees of freedom
are selected as MDOF for this model in the modal analysis. ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–130 VM55 Results Comparison
Target ANSYS Ratio Static Stressr , psi 10,000. 10,000. 1.000 Modal f1 , Hz 94.406 94.365 1.000 f2 , Hz 216.77 217.11 1.002 f3 , Hz 339.85 342.46 1.008 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–131 VM56: Hyperelastic Thick Cylinder Under Internal Pressure
Reference: J. T. Oden, Finite Elements of Nonlinear Continua...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.
- Spring '09
- The Land