洪水、地震、爆炸等自然和人为灾害均会导致建筑结构损坏,甚至倒塌,为解决有限单元法(Finite Element Method,FEM)和离散单元法(Discrete Element Method,DEM)等常用模拟仿真方法难以准确高效地模拟结构大变形及倒塌全过程的问题,采用应用单元法(Applied Element Method,AEM)构建模型,并与FEM、DEM进行了对比,分析了 3种方法的适用范围及AEM在洪水、地震、爆炸等灾害中的应用情况.研究结果表明,AEM能够高效且可靠地模拟结构从小变形到倒塌的全过程,具有广阔的应用前景.
Overview of the Basic Principles and Applications of the Applied Element Method(AEM)for Large Deformation Analysis of Structures
Natural and man-made disasters such as floods,earthquakes and explosions will cause structural damage and even collapse of buildings.In order to solve the problem that commonly simulation methods of Finite Element Method(FEM)and Discrete Element Method(DEM)can not accurately and efficiently simulate the whole process of large deformation and collapse of structures,the Applied Element Method(AEM)is used to construct the model.The model is compared with FEM and DEM.And the application range of the three methods and the application of AEM in flood,earthquake,explosion and other disasters are analyzed.The research results indicate that AEM can simulate the whole process from small structural deformation to collapse efficiently and reliably,which has a broad application prospect.
large structural deformationstructural analysis methodapplied element methodcollapse simulation
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