XANSYS Message: 93131 [Go back to message list] [bookmark on del.icio.us]
No rating yet Subject: Element Energy Error (SERR) Author: Singh, Hardev Date: 2008-05-02 20:13:06Hello, Has anyone tried to duplicate/verify the element energy error (accessed via ETABLE,,SERR command) provided by ANSYS? I am using the formula provide in "POST1 - Error Estimation Technique" section of theory manual; ei=(1/2)*(DelSigma)^T*[D}^-1(DelSigma)*(VOLU) for a plane strain application. ANSYS essentially subtracts element values of stress from the averaged (nodal) values, which is (DelSigma).
I am working on a project trying to correlate discretization error to errors in stress intensity factor calculations for 2D cracked plates, using the J-integral contour method.
Any help would be appreciated.
Hardev Singh SAIC - Aircraft Solutions Group TX, USA ^-------------------------------------------------------- | XANSYS - www.xansys.org | | The Discussion List for users of ANSYS, Inc. Software | | Hosted by PADT - www.padtinc.com | ^--------------------------------------------------------