Statistical Model of the 3-D Braided Composites Strength

摘要

Based on the statistical model for the tensile statistical strength of unidirectional composite materials and the stress analysis of 3-D braided composites, a new method is proposed to calculate the tensile statistical strength of the 3-D braided compos-ites. With this method, the strength of 3-D braided composites can be calculated with very large accuracy, and the statistical parame-ters of 3-D braided composites can be determined. The numerical result shows that the tensile statistical strength of 3-D braided composites can be predicted using this method.