Bending Moment Calculations for Piles Based on the Finite Element Method

Table 3

Bending moment error (%).

Element type	Mesh	Computed with stress			Computed with displacement
		B	C	D	B	C	D
CPS4	2×8	−89.19	−88.99	−88.02	−89.99	−91.72	−95.28
	2×16	−70.02	−69.89	−69.22	−66.44	−65.26	−57.81
	2×32	−45.73	−45.67	−45.37	−32.89	−36.96	−59.74
	2×64	−31.89	−31.87	−31.78	−13.19	−3.40	−620.48
	2×128	−27.25	−27.24	−27.22	−24.98	−620.48	−3143.38
	4×64	−14.42	−14.40	−14.27
	8×64	−10.03	−10.01	−9.87
	16×64	−8.93	−8.91	−8.77
	4×128	−8.56	−8.55	−8.52
	8×128	−3.86	−3.85	−3.81
	16×128	−2.68	−2.67	−2.64
CPS8R	2×32	−33.25	−33.15	−32.59
	2×64	−33.31	−33.28	−33.11
	2×128	−33.32	−33.31	−33.24
	4×64	−6.65	−6.63	−6.52
	8×64	−1.57	0.02	0.09