002114 sas ip inc 1315 vm142 analysis assumptions and

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Unformatted text preview: P, Inc. 1–311 VM140 Analysis Assumptions and Modeling Notes The loads are applied at only one node (node 75) for convenience since the cross section of interest (at the wall) is far from the load. Nodal forces are applied on full circumference basis and are calculated for symmetric mode 1 as follows: FZ = -2M/d = 400 FX = 2Fv = -50 (see Triangle, Prism and Tetrahedral Elements in ANSYS Elements Reference) FY = Fa = 100 Poisson's ratio is taken as zero to avoid the stress concentration at the built-in end due to the axial force. The nonaxisymmetric loading capability of this element type (PLANE83) is used to model the bending effect. POST1 is used to report maximum stresses at the wall. Results Comparison Maximum Stresses Target ANSYS Ratio TORSION shear stress, psi 1018.6 1018.6[1] 1.000 AXIAL + BENDING 6238.9 6239.9[1] 1.000 6401.0 6402.1[1] 1.000 Stressy , psi (at y = 0) COMBINED Stress1 , psi 1. 1–312 POST1 nodal stresses at node 51 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP,...
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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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