Homotopy Iteration Algorithm for Crack Parameters Identification with Composite Element Method

Table 1

Comparison of the convergence property with different number of terms in CT.

Number of term in CT	Natural frequencies in Hz (𝑥𝑐=1000 mm, ℎ𝑐=1 mm)
	1	2	3	4	5	6	7	8
4	14.65	58.73	131.86	234.92	592.11	890.33	53510.81	58925.59
5	14.65	58.73	131.86	234.92	366.28	890.33	1252.84	58925.59
6	14.65	58.73	131.86	234.92	366.28	528.55	1252.83	1680.70
9	14.65	58.73	131.86	234.92	366.28	528.56	717.93	939.60
10	14.65	58.73	131.86	234.92	366.28	528.56	717.93	939.60