近场动力学与有限元的混合建模方法

来源 :中国计算力学大会2018暨国际华人计算力学大会2018 | 被引量 : 0次 | 上传用户:shy1201107
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  针对近场动力学(PD)中长期存在的边界效应和计算成本高的问题,本文提出了一种基于对偶思想的近场动力学与有限元混合建模的方法,该耦合方法不在设置过度区域,局部力与非局部力的相互传递简单可靠。此外,本文提出了近场动力学单元与节点的概念,推导了键基近场动力学和常规态基近场动力学线性化的公式,构造了近场动力学非局部单元刚度矩阵,并在商业软件中实现了近场动力学与有限元耦合模型的并行计算。
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