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Numerical simulation of the failure process of unreinforced masonry walls due to concentrated static and dynamic loading

机译:静,动态集中荷载作用下无筋砌体墙破坏过程的数值模拟

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摘要

Finite element analyses of brick masonry subjected to in-plane concentrated static and dynamic loads are carried out to study crack initiation and propagation during the failure process of unreinforced masonry walls. The numerical model is firstly validated by the experimental tests by using the same materials parameters and loading conditions. Then, the static and dynamic concentrated loads are applied to the mortar joints and brick, respectively, and numerical simulations are used to compare the fracture characteristics for these loads. In addition, a comparison of fracture mechanisms for the concentrated loads on the mortar joint and brick is also given. Finally, the effect of dynamic pressure (P) on the failure mechanism of brick masonry is considered.
机译:进行了砖砌体在平面内集中的静,动载荷作用下的有限元分析,以研究无筋砌体墙破坏过程中的裂纹萌生和扩展。首先采用相同的材​​料参数和加载条件,通过实验测试对数值模型进行了验证。然后,将静,动态集中载荷分别施加到砂浆接缝和砖上,并使用数值模拟比较这些载荷的断裂特性。此外,还给出了砂浆缝和砖上集中载荷的断裂机理的比较。最后,考虑了动压(P)对砖砌体破坏机理的影响。

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