To pass the patch test, the constant strainmatrix is modified.
通过修正常应变矩阵,确保单元通过分片检验。
2
Based on the analytical solution to stress field around a hole in a stressed orthotropic infinite width plate, a set of equations was derived to calculate the relieved strainmatrix.
While deriving the finite element equation, get the cable's strain formula considering the big distortion, get its geometry rigidity matrix and elastic rigidity matrix.