Comparison of two projection methods for the solution of frictional contact problems

Boundary Value Problems

Table 1 Number of iterations for each method

ρ	Self-adaptive projection method				Modified self-adaptive projection method
ρ	h = 0.4	h = 0.2	h = 0.1	h = 0.05	h = 0.4	h = 0.2	h = 0.1	h = 0.05
1	59	81	70	78	46	51	55	62
10	57	68	73	73	44	49	53	60
10²	58	68	68	71	43	49	55	49
10³	58	62	62	69	43	48	56	43
10⁴	57	66	74	78	45	52	59	57
10⁵	64	75	73	80	47	50	51	59
10⁶	62	83	71	72	47	52	57	51
10⁷	61	71	80	83	50	55	57	63