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http://dx.doi.org/10.7736/KSPE.2012.29.6.654

Evaluation of Residual Strength Under Impact Damage in Woven CFRP Composites  

Choi, Jung-Hun (Durability & Reliability Team, Hyundai & Kia Corporate R&D Division)
Kang, Min-Sung (Design Analysis Team, NEXEN Tire Corporate R&D Center)
Koo, Jae-Mean (Department of Mechanical Engineering, Sungkyunkwan Univ.)
Seok, Chang-Sung (Department of Mechanical Engineering, Sungkyunkwan Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.29, no.6, 2012 , pp. 654-663 More about this Journal
Abstract
Damage induced by low velocity impact loading in aircraft composite is the form of failure which is frequently occurred in aircraft. As the consequences of impact loading in composite laminates, matrix cracking, delamination and eventually fiber breakage for higher impact energies can be occurred. Even when no visible impact damage is observed, damage can exist inside of composite laminates and carrying load of the composite laminates is considerably reduced. The objective of this study is to evaluate and predict residual strength behavior of composite laminates by impact loading and for this, tensile test after impact was carried out on composite laminates made of woven CFRP.
Keywords
CFRP; Residual Strength; Impact Damage; Ratio of Residual Strength;
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