- 적층각 및 형상 변화에 따른 CFRP 구조부재의 동적 특성
- ㆍ 저자명
- 여인구,최주호,양인영,Yeo. In-Goo,Choi. Ju-Ho,Yang. In-Young
- ㆍ 간행물명
- 한국생산제조시스템학회지
- ㆍ 권/호정보
- 2013년|22권 3호|pp.388-393 (6 pages)
- ㆍ 발행정보
- 한국생산제조시스템학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
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.