Investigation of cure cycle for co-cured metal/composite hybrid structures without fabricating thermal residual stress

동시경화 하이브리드 금속/복합재료 구조물의 제조 잔류 열응력 제거를 위한 경화사이클에 관한 연구

  • 김학성 (한국과학기술원 기계공학과 대학원) ;
  • 박상욱 (한국과학기술원 기계공학과 대학원) ;
  • 이대길 (한국과학기술원 기계공학과)
  • Published : 2004.10.01

Abstract

In this work, the cure cycle of co-cured metal/composite structure was investigated to decrease fabricating thermal residual stresses between the metal and the composite material. DSC (Differential scanning calorimetry) experiment and static lap shear test of co-cured aluminum/composite double lap joint as well as the curvature experiment of co-cured steel/composite strip were performed to investigate the effect of curing cycle on the thermal residual stress of co-cured hybrid structures. From the experiments, it was found that post curing method after abrupt cooling of co-cured aluminum/composite hybrid structure at certain point of degree of cure during curing process could eliminate fabricating the thermal residual stresses.

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