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Time-Dependent Tensile Behavior of Fiber-Reinforced Ceramic-Matrix Composites

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Part of the book series: Advanced Ceramics and Composites ((ACC,volume 1))

Abstract

In this chapter, the time-dependent tensile damage and fracture of fiber-reinforced ceramic-matrix composites (CMCs) subjected to pre-exposure at elevated temperatures and thermal fatigue are investigated. The damage mechanisms of the interface oxidation and fiber failure are considered in the stress analysis, matrix multicracking, interface debonding, and fiber failure. Combining the stress analysis and damage models, the tensile stress-strain curves of fiber-reinforced CMCs for different damage stages can be obtained. The effects of the pre-exposure temperature and time, thermal fatigue temperature, thermal cyclic number, the interface shear stress, fiber strength, and fiber Weibull modulus on tensile damage and fracture processes are analyzed. The experimental tensile damage and fracture process of fiber-reinforced CMCs with different fiber preforms are predicted for a different pre-exposure temperature and time.

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Correspondence to Longbiao Li .

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© 2020 Springer Nature Singapore Pte Ltd.

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Li, L. (2020). Time-Dependent Tensile Behavior of Fiber-Reinforced Ceramic-Matrix Composites. In: Time-Dependent Mechanical Behavior of Ceramic-Matrix Composites at Elevated Temperatures. Advanced Ceramics and Composites, vol 1. Springer, Singapore. https://doi.org/10.1007/978-981-15-3274-0_4

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