复合材料破坏准则的唯象理论

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Phenomenological Theory of Failure Criterion for Composite Materials

摘要: 本文研究了复合材料的二阶型和三阶型张量多项式破坏准则的几种主要理论。提出了用非线性优化方法来确定准则中的影响系数,并将优化结果与几种典型的复合材料实验数据及各种理论的计算结果进行了讨论和比较,结果表明系数优化的方法是有效的。

Abstract: In this paper, some current anisotropic failure criteria in the forms of tensor polynomials are investigated. In order to deterumne the interaction coefficients of the failure criteria, a nonlinear optimization method is proposed. The results obtained by different theories as well as the optimization are compared with the test data of some composite materials. The comparison shows that the optimization method for the materials considered in this paper is effective.

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