A Gradient Stable Node-Based Smoothed Finite Element Method for Solid Mechanics Problems

Table 1

Displacement error norm of numerical results for the standard patch test on different meshes.

Solution	FEM	NS-FEM	GS-FEM
Regular	7.5426E − 15	4.7573E − 15	1.2906E − 14
Irregular,	9.0044E − 15	4.7056E − 15	8.9583E − 15
Irregular,	2.3392E − 14	4.6646E − 15	9.1383E − 15
Irregular,	1.5240E − 14	5.5588E − 15	1.7212E − 14