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Probabilistic Method to Establish the Reliability of Carbon-Carbon Rocket Motor Nozzles. Volume 2. Reliability and Failure Analyses of 2-D Carbon-Carbon Structural Components.

机译：建立碳 - 火箭发动机喷管可靠性的概率方法。第2卷。二维碳 - 碳结构部件的可靠性和失效分析。

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The strength of brittle materials is characterized by a wide scatter. Such materials are also afflicted by size effects. Size effects in brittle composite structures such as beams and plates with and without stress raisers are investigated experimentally and analytically. A methodology for reliability analysis of carbon-carbon composites is presented. The model is based on Weibull statistics which was extended to account for the three-dimensional stress field including interlaminar stresses. Failure criteria for bi-directional orthotropic lamina are developed and failure analysis in the non-probabilistic sense (i.e., First-ply-failure analysis) is performed. Comparisons are made with existing failure criteria, with the results of the reliability analysis and also with experiments.

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作者
Heller, R. A.; Yeo, I.; Thangjitham, S.;
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年度 1992
页码 1-138
总页数 138
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Carbon carbon composites; Brittleness; Failure(Mechanics); Reliability; Shear tests; Three dimensional; Mechanical properties; Stress testing; Plates; Composite materials; Statistics; Methodology; Composite structures; Beams(Structural); Rocket nozzles; 3D (Three Dimensional); Weibull Distribution; Beams; First Ply Failure; Weakest Link; SBI1;

机译：碳碳复合材料;脆性;失效（力学）;可靠性;剪切试验;三维;力学性能;应力测试;板材;复合材料;统计学;方法学;复合结构;梁（结构）;火箭喷嘴; 3D（三维） ;威布尔分布;梁;第一层失效;最薄弱环节; sBI1;

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Probabilistic Method to Establish the Reliability of Carbon-Carbon Rocket Motor Nozzles. Volume 2. Reliability and Failure Analyses of 2-D Carbon-Carbon Structural Components.

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