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http://dx.doi.org/10.3795/KSME-A.2013.37.4.503

Evaluation of Compressive Residual Strength in Composite Material Under Impact Damage  

Ahn, Sang Soo (Dept. of Mechanical Engineering, Sungkyunkwan Univ.)
Hong, Suk Woo (Dept. of Mechanical Engineering, Sungkyunkwan Univ.)
Koo, Jae Mean (Dept. of Mechanical Engineering, Sungkyunkwan Univ.)
Seok, Chang Sung (Dept. of Mechanical Engineering, Sungkyunkwan Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.4, 2013 , pp. 503-509 More about this Journal
Abstract
Carbon fiber reinforced plastics (CFRPs), a composite material, are generally vulnerable to compressive load and impact damage in a direction perpendicular to the surface of the material. In particular, during the operation of an aircraft, impact damages caused by bird collisions or falling tools reduce the strength of the aircraft structure. In this study, after impact damages were applied to CFRP specimens with various impact energies and impactor diameters, the compressive residual strength of the impact-damaged specimen was evaluated by performing a compression test. Furthermore, a prediction model for the compressive residual strength is proposed according to the variation in the impact energy by comparing the test results.
Keywords
CFRP; Compressive Residual Strength; Impact Damage; Impactor Diameter;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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