- 온도변화가 CF/PEEK 적층재의 충격 후 굽힘강도에 미치는 영향
- The Effects of Temperature Change on the Bending Strength of CF/PEEK Laminates after Impact
- ㆍ 저자명
- 양인영,정종안,나승우
- ㆍ 간행물명
- 산업안전학회지
- ㆍ 권/호정보
- 2003년|18권 2호|pp.34-39 (6 pages)
- ㆍ 발행정보
- 한국안전학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this paper, when CF/PEEK laminates for high efficiency space structure are subjected to FOD(Foreign Object Damage), the effects of temperature change on the impact damages(interlaminar separation and transverse crack) of CF/PEEK laminates and the relationship between residual lift and impact damages are experimentally investigated. Composite laminates used in this experiment are CF/PEEK orthotropic laminated plates, which have two-interlaces [$0^{circ}_4/90^{circ}_8/0^{circ}_4$]. A steel ball launched by the air gun collides against CF/PEEK laminates to generate impact damages. And then CF/PEEK specimens with impact damages are observed by a scanning acoustic microscope under room and high temperatures. In this experimental results, various relations are experimentally observed including the delamination area vs. temperature change, the bending strength vs. impact energy and the residual bending strength vs. impact damage of CF/PEEK laminates.