Effect of cyclic hygrothermal aging on interlaminar fracture toughness of T700/TDE86 carbon composite

XU Kailong; LIU Lulu; ZHAO Zhenhua; SHUANG Chao; CHEN Wei

doi:10.11868/j.issn.1005-5053.2018.000072

Journal of Aeronautical Materials (Aug 2019)

Effect of cyclic hygrothermal aging on interlaminar fracture toughness of T700/TDE86 carbon composite

XU Kailong,
LIU Lulu,
ZHAO Zhenhua,
SHUANG Chao,
CHEN Wei

Affiliations

XU Kailong: Aero-engine Thermal Environment and Structure Key Laboratory of the Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
LIU Lulu: Aero-engine Thermal Environment and Structure Key Laboratory of the Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
ZHAO Zhenhua: Aero-engine Thermal Environment and Structure Key Laboratory of the Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
SHUANG Chao: Aero-engine Thermal Environment and Structure Key Laboratory of the Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
CHEN Wei: Aero-engine Thermal Environment and Structure Key Laboratory of the Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

DOI: https://doi.org/10.11868/j.issn.1005-5053.2018.000072
Journal volume & issue: Vol. 39, no. 4
pp. 40 – 48

Abstract

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The artificial accelerated cyclic hygrothermal aging test was conducted on T700/TDE86 carbon fiber reinforced resin matrix composites, and the effects of different cyclic hygrothermal aging days on interlaminar fracture toughness of composites with open type (mode Ⅰ) and slip type (mode Ⅱ) were investigated. The results show that the model Ⅰ interlaminar fracture toughness of composite after cyclic hygrothermal aging exists an obvious R curve, the initial extend energy release rate (GIC,init) and the propagational extend energy release rate (GIC,prop) of composite are improved remarkably with the increase of cyclic hygrothermal aging days. The model Ⅱ interlaminar fracture toughness of composite appears a trapezoidal descent with the increase of cyclic hygrothermal aging days, and the decline is the largest at the early stage of cyclic hygrothermal aging and the largest descent is 21.68%.

Published in Journal of Aeronautical Materials

ISSN: 1005-5053 (Print)
Publisher: Journal of Aeronautical Materials
Country of publisher: China
LCC subjects: Technology: Motor vehicles. Aeronautics. Astronautics
Website: http://jam.biam.ac.cn/indexen.htm

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