Application of Base Force Element Method on Complementary Energy Principle to Rock Mechanics Problems

Table 10

Stress at center of the element at lower right of pillar.

Meshes	BFEM (kPa)	Q4 model (kPa)	Q4R model (kPa)
20 × 40	−128.963	−179.706	−132.974
10 × 40	−142.729	−191.962	−150.839
8 × 40	−141.996	−193.919	−152.815
6 × 40	−134.954	−194.249	−150.941