复合材料层压板冲击后压缩剩余强度的统计分析与可靠性评估

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2004, Vol. 25 ›› Issue (6): 573-576.

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Statistical Analysis of Post-Impact Compression Strength of a Composite Laminate and Reliability Evaluation

CHEN Pu-hui¹, SHEN Zhen², NIE Hong¹

1. College of Aerospace Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016;2. Aircraft Strength Research Institute of China, Xi'an 710065

Received:2003-10-13 Revised:2004-02-12 Online:2004-12-25 Published:2004-12-25

Abstract

Abstract: In this paper, the test data of post-impact compression strength are statistically analyzed for T300/5405 composite laminate. It is indicated that a two-parameter Weibull distribution can be used to describe the data of the post-impact compression strength. Afterwards, the damage tolerance reliability evaluations are carried out for the T300/5405 composite laminate by introducing the concept of impact threats. The results indicate that the damage tolerance behavior of composite laminates can be taken fully by taking the impact threats into consideration in the reliability analysis.

Key words: composite, post-impact compression, Weibull distribution, impact threat, reliability

CHEN Pu-hui;SHEN Zhen;NIE Hong. Statistical Analysis of Post-Impact Compression Strength of a Composite Laminate and Reliability Evaluation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2004, 25(6): 573-576.

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Statistical Analysis of Post-Impact Compression Strength of a Composite Laminate and Reliability Evaluation

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