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在氧化气氛中高温下应力断裂和循环加载对纤维增强陶瓷基复合材料应变响应的协同效应。

Synergistic Effects of Stress-Rupture and Cyclic Loading on Strain Response of Fiber-Reinforced Ceramic-Matrix Composites at Elevated Temperature in Oxidizing Atmosphere.

作者信息

Li Longbiao

机构信息

College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, No. 29 Yudao St., Nanjing 210016, China.

出版信息

Materials (Basel). 2017 Feb 15;10(2):182. doi: 10.3390/ma10020182.

DOI:10.3390/ma10020182
PMID:28772544
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5459135/
Abstract

In this paper, the synergistic effects of stress rupture and cyclic loading on the strain response of fiber-reinforced ceramic-matrix composites (CMCs) at elevated temperature in air have been investigated. The stress-strain relationships considering interface wear and interface oxidation in the interface debonded region under stress rupture and cyclic loading have been developed to establish the relationship between the peak strain, the interface debonded length, the interface oxidation length and the interface slip lengths. The effects of the stress rupture time, stress levels, matrix crack spacing, fiber volume fraction and oxidation temperature on the peak strain and the interface slip lengths have been investigated. The experimental fatigue hysteresis loops, interface slip lengths, peak strain and interface oxidation length of cross-ply SiC/MAS (magnesium alumino-silicate, MAS) composite under cyclic fatigue and stress rupture at 566 and 1093 °C in air have been predicted.

摘要

本文研究了应力断裂和循环加载对纤维增强陶瓷基复合材料（CMC）在空气中高温下应变响应的协同效应。建立了考虑应力断裂和循环加载下界面脱粘区域界面磨损和界面氧化的应力-应变关系，以确定峰值应变、界面脱粘长度、界面氧化长度和界面滑移长度之间的关系。研究了应力断裂时间、应力水平、基体裂纹间距、纤维体积分数和氧化温度对峰值应变和界面滑移长度的影响。预测了交叉铺层SiC/MAS（镁铝硅酸盐，MAS）复合材料在566℃和1093℃空气中循环疲劳和应力断裂下的实验疲劳滞后环、界面滑移长度、峰值应变和界面氧化长度。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/ddf54583a18f/materials-10-00182-g012.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/9730dda5ed7d/materials-10-00182-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/1b16157c9bfc/materials-10-00182-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/374594a470ef/materials-10-00182-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/6a02f8c00e64/materials-10-00182-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/36fce256bc41/materials-10-00182-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/709fc65f49f2/materials-10-00182-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/43f0329a6081/materials-10-00182-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/ddf54583a18f/materials-10-00182-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/3f898c1b01af/materials-10-00182-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/ae4e4e4e7b1e/materials-10-00182-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/6a6fc10dc944/materials-10-00182-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/cad494c5eeb3/materials-10-00182-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/9730dda5ed7d/materials-10-00182-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/1b16157c9bfc/materials-10-00182-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/374594a470ef/materials-10-00182-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/6a02f8c00e64/materials-10-00182-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/36fce256bc41/materials-10-00182-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/709fc65f49f2/materials-10-00182-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/43f0329a6081/materials-10-00182-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b75d/5459135/ddf54583a18f/materials-10-00182-g012.jpg

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