Effective Mechanical Property Estimation of Composite Solid Propellants Based on VCFEM

Table 1

Comparison of two methods’ displacement results in load direction.

Node	VCFEM (μm)	FEM (μm)	Error
Matrix node
1	0	0	—
2	0.005820	0.005598	3.97%
3	0.011190	0.010841	3.22%
4	0.016790	0.016027	4.76%
5	0.022840	0.021831	4.62%
6	0.021620	0.020608	4.91%
7	0.021960	0.020928	4.93%
8	0.021620	0.020608	4.91%
9	0.022840	0.021831	4.62%
Matrix-inclusion interface node
1	0.01584	0.01568	1.03%
2	0.01514	0.01472	2.89%
3	0.01594	0.01539	3.57%
4	0.01662	0.01634	1.72%
5	0.00543	0.00519	4.56%
6	0.00442	0.00426	3.88%
7	0.00493	0.00504	2.17%
8	0.00592	0.00591	0.14%
9	0.01058	0.01017	4.00%
10	0.00980	0.00937	4.54%
11	0.01063	0.01017	4.49%
12	0.01130	0.01100	2.73%

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