콘텐츠 본문
논문 해외 국제일반학술지 Prediction of Failure Thermal Cycles in Graphite/Epoxy Composite Materials under Simulated Low Earth Orbit Environments
- 학술지 구분 국제일반학술지
- 게재년월 2000-04
- 저자명 Kwang-Bok Shin, Chun-Gon Kim, Chang-Sun Hong, Ho-Hyung Lee
- 학술지명 Composites Part B : Engineering
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
- 논문 다운로드 링크(외부) https://www.sciencedirect.com/science/article/pii/S1359836899000736
논문 초록 (Abstract)
In order to evaluate the changes in the mechanical properties, mass and coefficient of thermal expansion of composites in space, graphite/epoxy composite specimens were exposed to simulated low earth orbit (LEO) environmental conditions including ultraviolet radiation, thermal cycling and high vacuum. Surface morphology was investigated by using a scanning electron microscope, and outgassed products were analyzed with a quadrupole mass spectrometer. The failure cycle of composite laminates exposed to the attack of LEO environmental factors was predicted by using four modified failure criteria. The modified failure criteria were expressed as a function of stresses as well as thermal cycles.
