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建立了含相互干扰多裂纹结构的裂纹扩展随机模型 .提出了远源裂纹、近源裂纹、概率寿命曲面等概念 .给出了相互干扰多裂纹扩展随机微分方程的统一表达形式 .在工程基本假设的基础上简化了相互干扰多裂纹扩展过程的计算 .在此基础上可进一步分析含相互干扰多裂纹结构的可靠性 ,可直接应用于工程实践
A stochastic crack propagation model with multi-crack structures with mutual interference was established. Concepts such as far-source crack, near-source crack and probabilistic life surface were proposed. The unified expression of multi-crack propagation stochastic differential equations with mutual interference was given. Based on this, the reliability of multi-crack structures with mutual interference can be further analyzed and can be directly applied to engineering practice