摘要
探讨了用二次等参数体元解算三维接触问题时的载荷移置、接触判断、结果整理等问题．给出了载荷移置矩阵及其逆矩阵——光滑矩阵．用考题验证了上述两个矩阵，并应用这两个矩阵解算了工程中的三维接触问题．
The questions on the load conversion, the contact distinguish and the result process are investigated. These questions are introduced into computing 3-D contact problem by using quadratic isoparametric solid elements. The load conversion matrix and its converse matrix, that is the smoothing matrix, are given. Both matrices above mentioned are examined by examples and are applied to computing 3-D contact problem in engineering.
关键词
结构力学
等参元
接触问题
光滑矩阵
有限元法
structural mechanic, isoparametric element, contact problem, smoothing matrix, finite element
