摘要:将有限元法(FEM)和基于节点的光滑点插值方法(NS—PIM)相结合,提出一种应变重构点插值无网格方法(SC-PIM).通过弓l入可调参数,假设应变场为协调应变和光滑应变的线性组合,讨论了SC—PIM的收敛性、上下界特性及超收敛性.
The authors presented a strain-constructed point interpolation method (SC-PIM) by combining techniques of FEM and node-based point interpolation method (NS-PIM). By introducing a parameter, we further discussed the convergence, upper bound and lower bound solution, and superconvergence under the assumption of strain field being a linear combination of compatible stains and smoothed strains from SC-PIM.