Abstract
An assumed strain (strain interpolation) method is used to construct a stabilization matrix for the 9‐node shell element. The stabilization procedure can be justified based on the Hellinger–Reissner variational method. It involves a projection vector which is orthogonal to both linear and quadratic fields in the local co‐ordinate system of each quadrature point. All terms in the development involve 2 × 2 quadrature in the 9‐node element. Example problems show good accuracy and an almost optimal rate of convergence.
Original language | English (US) |
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Pages (from-to) | 385-414 |
Number of pages | 30 |
Journal | International Journal for Numerical Methods in Engineering |
Volume | 28 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1989 |