2 3 4 234 ansys verification manual ansys release 90

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Unformatted text preview: lement types noted above. Figure C8.1 Aluminum Bar Problem Sketch £ ¢ ¡ Material Properties E = 70 x 109 N/M2 ET = 100 x 106 N/M2 σyp = 420 x 106 N/M2 υ = 0.3 ρ = 2700 Kq/m3 Geometric Properties = 2.347 cm d = 0.762 cm Loading Vo = 478 m/sec ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 2–29 Benchmark C8 Representative Finite Element Models Assumptions, Modeling Notes, and Solution Comments 1. The test case is modelled as a 2-D axisymmetric analysis with elements PLANE2, PLANE42, PLANE82, VISCO106, PLANE182 ,and PLANE183. Each analysis consists of two load steps. The first load step is static and serves to define the initial velocity. The second load step resolves the nonlinear transient effects. 2. The material behavior is assumed to be elastic perfectly plastic and obey a bilinear isotropic hardening law. The elastic wave propagation speed is defined as E / . The time required for the elastic wave to travel across a typical element in the radial direction is used to define the minimum number of substeps. A time span of 4.5 x 10-5 second...
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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.

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