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首页> 外文期刊>Materials Science and Engineering >Failure simulation of unidirectional fiber-reinforced ceramic matrix composites based on evolving compliant interfacial debonding model
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Failure simulation of unidirectional fiber-reinforced ceramic matrix composites based on evolving compliant interfacial debonding model

机译：基于演化顺应性界面剥离模型的单向纤维增强陶瓷基复合材料失效模拟

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Damage and failure process of the unidirectional fiber-reinforced ceramic matrix composites (FRCMCs) under tensile stress had been studied by many researchers in theoretical method. But because of some assumptions made in the theoretical model, it canot describe the performance of interface accurately. In this paper, evolving compliant interface (ECI) is employed to describe the properties of weak bonding interface. The ECI can respond the failure of debonding and sliding of interface efficiently. The whole damage evolution process of the material has been simulated by finite element method (FEM) and the stress-strain curve, the space of cracks at saturated state and the stress of components are discussed. The stress-strain curves of several ceramic composites were predicted by the model and compared with the experimental data. The results indicate that the tensile stress-strain curves agree well with the experimental data on consideration of Evolving compliant interfacial debonding model.
机译：许多研究人员在理论方法上研究了单向纤维增强陶瓷基复合材料（FRCMCs）在拉伸应力作用下的破坏和破坏过程。但是由于理论模型中的一些假设，它无法准确描述接口的性能。在本文中，采用演进的顺应性界面（ECI）来描述弱键合界面的特性。 ECI可以有效地响应界面脱粘和滑动失败。用有限元方法模拟了材料的整个损伤演化过程，讨论了应力-应变曲线，饱和状态下的裂纹间距和构件的应力。该模型预测了几种陶瓷复合材料的应力-应变曲线，并与实验数据进行了比较。结果表明，考虑演化顺应性界面剥离模型，拉伸应力-应变曲线与实验数据吻合良好。

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