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

Table 3

Stress at center of the elements at top of the pillar.

Meshes	BFEM (kPa)	Q4 model (kPa)	Q4R model (kPa)
10 × 10	−12.016	−12.244	−12.062
10 × 20	−6.005	−6.0773	−6.013
10 × 30	−4.003	−4.0382	−4.002