Prediction of Long-Term Compression Strength for Quasi-Isotropic CFRP Laminates

Jun Kang; Zhi Dong Guan; Zhun Liu; Xing Li; Jun Wu Mu; Tian Yu Gao

doi:10.4028/www.scientific.net/AMR.1016.119

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1016Prediction of Long-Term Compression Strength for...

Prediction of Long-Term Compression Strength for Quasi-Isotropic CFRP Laminates

Abstract:

Long-term strength prediction method is developed based on three theories: accelerated testing methodology (ATM), strain invariant failure theory (SIFT) and progressive damage analysis (PDA). It can predict the strength and damage at a given failure time. Net resin 5228A was experimented by dynamic mechanical analysis and static tensile loading under various temperatures to determine the time-temperature shift factors and master curve of Young’s modulus. Unidirectional laminates of CCF300/5228A were tested under different temperatures to calculate the SIFT/ATM critical parameters. Long-term strength of quasi-isotropic composite laminates (QIL) was predicted. Good agreement between numerical results and experiments is observed, which demonstrates the applicability of this method.

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Periodical:

Advanced Materials Research (Volume 1016)

Pages:

119-124

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1016.119

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Online since:

August 2014

Authors:

Jun Kang*, Zhi Dong Guan, Zhun Liu, Xing Li, Jun Wu Mu, Tian Yu Gao

Keywords:

Accelerated Testing Methodology, CFRP, Long-Term Strength, Strain Invariant Failure Theory

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