摘要
给出了三维四、六、八节点过渡等参元的单元模型，推导了相应的应力平滑公式，编制了计算程序，并通过弹塑性问题和接触问题例题考核，结果良好。
This paper presents the model of 4-node,6-node and 8-node three dimension transitionisoparametric elements,derives their stress smoothing formula and generates computing pro-gram. The illustrative examples include elastoplastic problem and contact problem. The re-sults demonstrate the numerical accuracy and computational efficiency.
