A strain smoothing formulation for NURBS-based isogeometric finite element analysis

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为 NURBS (不一致的合理 B 花键) 弄平明确的表达的紧张基于 isogeometric 有限元素分析被介绍。这条途径在假定紧张方法和紧张变光滑操作的框架以内被提出。变光滑的紧张通过紧张在随后为 Galerkin 弱表格的数字集成被使用的元素子域平均被定义。这明确的表达满足假定紧张方法的 orthogonality 条件。同时,现在的明确的表达完全在僵硬矩阵的明确的表达避免合理 NURBS 基础功能的坡度计算。一个转变方法被采用精确地强制排水量边界条件。数字结果证明现在的形成与改进计算效率同时给很令
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