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적층각 및 형상 변화에 따른 CFRP 구조부재의 동적 특성
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  • 적층각 및 형상 변화에 따른 CFRP 구조부재의 동적 특성
저자명
여인구,최주호,양인영,Yeo. In-Goo,Choi. Ju-Ho,Yang. In-Young
간행물명
한국생산제조시스템학회지
권/호정보
2013년|22권 3호|pp.388-393 (6 pages)
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한국생산제조시스템학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Carbon fiber reinforced plastic (CFRP) has many desirable qualities, including being lightweight and very strong. These characteristics have led to its use in applications ranging from small consumer products to vehicles. Circular and square CFRP members were fabricated using 8ply unidirectional prepreg sheets stacked at different angles ($[+15^{circ}/-15^{circ}]_4$, $[+45^{circ}/-45^{circ}]_4$ and $[90]_8$, where $0^{circ}$ coincides with the axis of the member). Based on the collapse characteristics of a CFRP circular member, the collapse characteristics and energy absorption capability were analyzed. Impact collapse tests were carried out for each section member. In this study, the impact energies at crossheads speeds of 5.52 m/s, 5.14 m/s and 4.57 m/s were 611.52 J, 529.2 J and 419.44 J (circular member) 2.16 m/s, 1.85 m/s and 1.67 m/s are 372.4 J, 274.4 J and 223.44 J (square member). The purpose is to experimentally examine the absorption behavior and evaluation the strength in relation to changes in the stacking configuration when the CFRP circular members with different stacking configurations were exposed to various impact velocities. In addition, the dynamic characteristics were considered.