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The aluminum or CFRP is representative of light-weight materials. The aluminum tubes absorb energy by stable plastic deformation and the CFRP tubes absorbs energy by unstable brittle failure with higher specific strength and stiffness. Based on the respective collapse characteristics of aluminum and CFRP tubes, the aluminum CFRP compound tubes were manufactured to get a synergy effect when the aluminum CFRP tubes were combined with the advantages of each tube. This paper is to investigate the collapse characteristics of square or circular shaped aluminum CFRP compound tubes subjected to quasi-static axial collapse tests which were conducted by changing the stacking conditions. The aluminum CFRP compound tubes were made of8 layers of these sheets and they are stacked at different interlaminar numbers with outer orientation angle 90°, due to better collapse characteristics than that with 0 degrees. Test results showed that the collapse of the aluminum CFRP tubes complemented unstable brittle failure of the CFRP tube due to the ductile characteristics of the inner aluminum tube. It turned out that interlaminar numbers of aluminum CFRP compound tubes have no influence on the energy absorption and collapse modes of the tubes.

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Abstract
1. 서론
2. 시험편
3. 압궤실험
4. 결과 및 고찰
5. 결론
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UCI(KEPA) : I410-ECN-0101-2009-556-016819974