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cable
- 索单元在受压趋势下单元刚度为零,传统有限元方法中结构的整体刚度矩阵奇异,可运用向量式有限元索单元模拟这一过程-cable element under compression has a zero stiffness, which makes conventional finite element method singular, application of vector finite-element can help to tackle this problem.