Transcription of -Post-Proce ssing - Post-Processing - Altair University
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-Post-Proce ssing - Post-Processing - Altair University
-Post-ProcePost-ProThis chapter includes material from the book Practical Finadditional material added by Kristian Holm, Hossein ShakourzPlease note that this chapter is mostly intended for post-processrelevant for crash or nonlinear To Validate And Check Accuracy Of TFinite Element Analysis is an approximate technique. The levelwith respect to the experimental data. The following checks hFEA AcComputational Accuracy1) Strain energy norm, residuals2) Reaction forces and moments3)Convergence test)g4) Average and unaverage stress difference Visual check Discontinuous or an abrupt change in the strefor local mesh refinement in the region. 10to 15% difference inFEA and experimental results is cons10to 15% difference inFEA and experimental results is cons Probable reasons for more than 15% deviation wrong bostresses, localized effects like welding, bolt torque, experimenComputational accuracy does not guarantee the correcmay still behave in a different way in reality, than what sresults or approval of the results by an experienced CAEsimilar product / component over the years) is necessathe quality of mesh
2) Reaction forces and moments 3) Convergence test 4) Average and unaverage stress difference • Visual check – Discontinuous or an abrupt change in the str e for local mesh refinement in the region. • 10 to 15% difference in FEA and experimental results is cons • Probable reasons for more than 15% deviation – wrong bo
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