An FEM Analysis with Consideration of Random Void Defects for Predicting the Mechanical Properties of 3D Braided Composites

Table 4

Effect of the random distribution of the void defects on the elastic properties.

Elastic constants	𝑅1	𝑅2	𝑅3	𝑅4	𝑅5	Mean value; (𝑘)	Standard deviation; (𝑠)	𝑠/𝑘
𝐸𝑧/GPa	60.073	60.082	60.082	60.078	60.081	60.079	3.138𝐸−3	5.222𝐸−05
𝜇𝑥𝑧	0.7029	0.7031	0.7032	0.7030	0.7030	0.7030	1.0198𝐸−4	1.4506𝐸−04
𝜇𝑦𝑧	0.7033	0.7028	0.7026	0.7029	0.7029	0.7029	2.2804𝐸−4	3.2442𝐸−04
𝐺𝑥𝑧/GPa	11.345	11.346	11.345	11.345	11.346	11.345	4.967𝐸−4	4.378𝐸−05