tensile diagram

The criterion of the element with the maximum tensile stress will crack is presented, the iteration flow diagram of nonlinear analysis is improved, and then the position, gap and width of crack can be computed based on ′ smeared ′ crack model.

本文采用最大拉应力单元开裂准则，改进了非线性分析的迭代流程，使其最大可能地模拟实际结构的开裂情况，进而可以基于分布裂缝模式计算裂缝发生位置、裂缝间距、裂缝开展深度和宽度。

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It worked out the tensile stress-strain curve, the load-displacement diagram, the maximal stress distribution figures and the crack history figure during the deformation and failure process of the concrete specimen.

数值模拟结果给出了混凝土拉伸应力-应变曲线和三点弯曲载荷-位移曲线，以及混凝土试件破坏过程最大应力分布图和裂纹扩展图。

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