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A gradient smoothing Galerkin meshfree method for thin plate analysis with linear basis function
薄板问题的控制方程为四阶微分方程,因而当采用伽辽金法进行分析时,形函数需要满足 C1 连续性要求,且至少使用二次基函数才能保证方法的收敛性. 无网格形函数虽然易于满足C1连续性要求,但由于不是多项式,其二阶导数的计算较为复杂耗时,同时也对刚度矩阵的数值积分提出了更高的要 …
L. Deng
,
D. Wang
,
J. Wang
,
J. Wu
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A three-dimensional two-level gradient smoothing meshfree method for rainfall induced landslide simulations
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D. Wang
,
J. Wang
,
J. Wu
,
J. Deng
,
M. Sun
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Superconvergent gradient smoothing meshfree collocation method
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D. Wang
,
J. Wang
,
J. Wu
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A review of numerical integration approaches for Galerkin meshfree methods
无网格法直接通过节点信息构造形函数,不依赖于节点之间的有序单元连接,能够建立任意高阶连续的整体协调形函数.与传统的有限元法相比,无网格法对大变形问题,移动边界问题和高阶问题的求解有比较明显的优势.伽辽金型无网格法是目前应用最为广泛的一类无网格法.虽然无网格形函数本身不依 …
J. Wu
,
J. Deng
,
J. Wang
,
D. Wang
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