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Proceedings Paper

Axial collapse characteristics of CFRP composites with stacking conditions under the hygrothermal
Author(s): Yongjun Yang; Juho Choi; Woochae Hwang; Jaekyung Son; Hyun Kook; Kwanghee Im; Jaeki Sim; Inyoung Yang
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Paper Abstract

CFRP composite material has superior specific strength and rigidity compared to metallic material, and is widely adopted in the various fields. Exceptional corrosion resistance enables the acceptance in maritime structural members such as ship and oildrilling machineries. However, CFRP composite material has the weakness in hygrothermal environment and crash environment. Especially, moisture ingress into composite material under hygrothermal environment can change molecule arrangement and chemical properties. In addition, interface characteristics and component material properties can be degraded. An experimental investigation was carried out to study the crash evaluations of CFRP composites to dynamic crushing by impact loading. We have made a collapse experiment to research into the difference of absorbed energy and deformation mode between moisture absorbed specimen and non-moisture absorbed specimen. As a result, the effect of moisture absorption and impact loads of approximately 30~50% reduction in strength are shown.

Paper Details

Date Published: 2 April 2012
PDF: 12 pages
Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 84090X (2 April 2012); doi: 10.1117/12.923346
Show Author Affiliations
Yongjun Yang, Dongkang College (Korea, Republic of)
Juho Choi, Chosun Univ. (Korea, Republic of)
Woochae Hwang, Chosun Univ. (Korea, Republic of)
Jaekyung Son, Chosun Univ. (Korea, Republic of)
Hyun Kook, Chosun Univ. (Korea, Republic of)
Kwanghee Im, Woosuk Univ. (Korea, Republic of)
Jaeki Sim, Chosun Univ. (Korea, Republic of)
Inyoung Yang, Chosun Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 8409:
Third International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Yoseph Bar-Cohen; In Lee; Jian Lu, Editor(s)

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