ANSYS varification manual 9

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Unformatted text preview: , Ref.: R0027, Test 10a. Analysis Type(s): 2-D Plane Stress - Biaxial (Negative) Load Element Type(s): 2-D 4-Node Structural Solid Elements (PLANE182) 2-D 8-Node Structural Solid Elements (PLANE183) Input Listing: vm224.dat Test Case A specimen under plane stress conditions is constrained on the left and bottom edges. It is biaxially loaded with tensile stress σ1 on the right edge and compressive stress σ2 on the top edge. Determine the creep strain after 1000 hours. Figure 224.1 Implicit Creep Under Biaxial Load Problem Sketch &amp;% £ ¢ ¤ '% ¡ #\$&quot; ! ©¨ §¥  ¦ ¤ Material Properties E = 200 x 103 N/mm2 ν = 0.3 Geometric Properties L = 100 mm Creep Law ε = A σntm A = 3.125 x 10-14 per hour n=5 m = 0.5 Loading σ1 = 200 N/mm2 σ2 = - 200 N/mm2 Total creep time 1000 hours Analysis Assumptions and Modeling Notes For a 2-D plane stress condition a biaxial load is applied as follows: σ xx = σ0 σ yy = ασ0 In this case the effective stress is given by the following equation, where α = -1 σeff = σ0 ( α − α 2 1 2 + 1) ANSYS Verification Manual . ANSYS...
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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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