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http://dx.doi.org/10.3795/KSME-A.2005.29.10.1329

Axial Collapse Characteristics of Aluminum CFRP Compound Square Members for Vehicle Structural Members  

Lee, Kil-Sung (조선대학교 대학원 기계설계공학과)
Cha, Cheon-Seok (순천대학교 기계자동차공학부)
Pyeon, Seok-Beom (동강대학 소방안전관리과)
Yang, In-Young (조선대학교 기계설계공학과)
Sim, Jae-Ki (조선대학교 기전공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.29, no.10, 2005 , pp. 1329-1335 More about this Journal
Abstract
An aluminum or CFRP (Carbon Fiber ReinfDrced Plastics)is representative one of light-weight materials but its axial collapse mechanism is different from each other. The aluminum member absorbs energy by stable plastic deformation, while the CFRP member absorbs energy by unstable brittle failure with higher specific strength and stiffness than those in the aluminum member. In an attempt to achieve a synergy effect by combining the two members, aluminum CFRP compound square members were manufactured, which are composed of aluminum members wrapped with CFRP outside aluminum square members with different fiber orientation angle and thickness of CFRP, and axial collapse tests were performed fur the members. The axial collapse characteristics of the compound members were analyzed and compared with those of the respective aluminum members and CFRP members. Test results showed that the collapse of the aluminum CFRP compound member complemented unstable brittle failure of the CFRP member due to ductile characteristics of the inner aluminum member. The collapse modes were categorized into four modes under the iuluence of the fiber orientation angle and thickness of CFRP. The absorbed energy Per unit mass, which is in the light-weight aspect was higher in the aluminum CFRP compound member than that in the aluminum member and the CFRP member alone.
Keywords
Aluminum CFRP Compound Member; Axial Collapse Test; Fiber Orientation Angle; Thickness of CFRP;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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