基于有限变形理论——S-R和分解理论，以悬臂梁弹性大变形为例，建立伽辽金无网格法程序。该程序经过修改可以适用于三维弹性大变形问题的数值求解。(Based on the S-R decomposition finite deformation theory, the Galerkin meshless procedure is established by taking the elastic large deformation of the cantilever beam as an examp