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http://dx.doi.org/10.7735/ksmte.2012.21.1.007

Strength Evaluation of CFRP Hat-shaped Sectional Members Due to Variation of Collapse Conditions Under Hygrothermal Environment  

Yang, Yong-Jun (동강대학교 소방안전관리과)
Yang, In-Young (조선대학교 기계설계공학과)
Sim, Jae-Ki (조선대학교 메카트로닉스공학과)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.21, no.1, 2012 , pp. 7-14 More about this Journal
Abstract
CFRP composite material has the superior specific strength and rigidity compared to metallic materials, and is widely adopted in the various fields. However, CFRP composite material has the weakness in hygrothermal and crash environment. Especially, moisture ingress into composite material under hygrothermal environment can change molecule arrangement and chemical properties. In addition, interface characteristics and material component properties can be degraded. A collapse experiment has been made to research the differences of absorbed energy and deformation mode between absorbed specimens of moisture and non-moisture. As a result of this study, the effect of moisture absorption and impact loads of about 30~50% reduction in strength are shown.
Keywords
CFRP; Interface numbers; Hat shaped sectional members; Hygrothermal; Moisture absorption; Impact collapse; Absorbed energy;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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