一个自动地适应的元素免费方法被介绍分析可溶解的土壤的地震反应。方法基于元素免费 Galerkin 方法(EFGM ) 和是 h 精炼的部分的分裂过程,由错误评价显示了。在建议方法,取决于应力和 T-Belytschko (TB ) 压力恢复计划的精力标准的后验错误估计过程被合并。有效周期的 elasto 塑料的组成的模型被用来描述浸透的土壤的非线性的行为。管理方程被建立由在明确的表达上面。建议方法能有效地避免由于通常用有限单元法发生在数字计算的大变丑的容量的锁住(女性) 。建议方法的效率被评估一个堤的地震反应并且把它比作获得通过的结果表明女性。建议方法提供包括液化的效果的浸透的土壤的精确地震分析,这被显示出
An automatically adaptive element free method is presented to analyze the seismic response of liquefiable soils. The method is based on the element free Galerkin method (EFGM) and the fission procedure that is part of h-refinement, indicated by error estimation. In the proposed method, a posteriori error estimate procedure that depends on the energy norm of stress and the T-Belytschko (TB) stress recovery scheme is incorporated. The effective cyclic elasto-plastic constitutive model is used to describe the nonlinear behavior of the saturated soil. The governing equations are established by u-p formulation. The proposed method can effectively avoid the volumetric locking due to large deformation that usually occurs in numerical computations using the finite element method (FEM). The efficiency of the proposed method is demonstrated by evaluating the seismic response of an embankment and comparing it to results obtained through FEM. It is shown that the proposed method provides an accurate seismic analysis of saturated soil that includes the effects of liquefaction .