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Effect of Cyclic Fatigue Loading on Matrix Multiple Fracture of Fiber-Reinforced Ceramic-Matrix Composites

College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, No.29 Yudao St., Nanjing 210016, China
Ceramics 2019, 2(2), 327-346; https://doi.org/10.3390/ceramics2020027
Received: 24 January 2019 / Revised: 5 May 2019 / Accepted: 10 May 2019 / Published: 13 May 2019
(This article belongs to the Special Issue Damage and Lifetime of Ceramic Matrix Composites)
In this paper, the effect of cyclic fatigue loading on matrix multiple fracture of fiber-reinforced ceramic-matrix composites (CMCs) is investigated using the critical matrix strain energy (CMSE) criterion. The relationships between multiple matrix cracking, cyclic fatigue peak stress, fiber/matrix interface wear, and debonding are established. The effects of fiber volume fraction, fiber/matrix interface shear stress, and applied cycle number on matrix multiple fracture and fiber/matrix interface debonding and interface wear are discussed. Comparisons of multiple matrix cracking with/without cyclic fatigue loading are analyzed. The experimental matrix cracking of unidirectional SiC/CAS, SiC/SiC, SiC/Borosilicate, and mini-SiC/SiC composites with/without cyclic fatigue loading are predicted. View Full-Text
Keywords: Ceramic-matrix composites (CMCs); Multiple matrix cracking; Cyclic fatigue; Interface debonding; Interface wear Ceramic-matrix composites (CMCs); Multiple matrix cracking; Cyclic fatigue; Interface debonding; Interface wear
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Li, L. Effect of Cyclic Fatigue Loading on Matrix Multiple Fracture of Fiber-Reinforced Ceramic-Matrix Composites. Ceramics 2019, 2, 327-346.

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