지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.11
- 수록면
- 1,602 - 1,607 (6page)
이용수
초록· 키워드
오류제보하기
The pre-existing inner stresses in composite materials should be determined in order to avoid structural failure. Such stresses are accumulated during the manufacturing process. Thus, they are called “process-induced residual stress”. In this paper, the process-induced residual stresses in glass/epoxy composites were predicted by using micro-mechanical model in ABAQUS. Moreover, the effect of parameters such as the fiber volume fraction, cooling rate, and nature of the matrix were investigated. The viscoelastic nature of the epoxy was implemented in a UMAT code by using FORTRAN. The results showed that higher fiber volume fraction induces higher residual stress. However, the increase of the cooling rate slightly changes the residual stress values. Moreover, using elastic solution of the epoxy overestimated the residual stress.
목차
ABSTRACT
Introduction
Materials constitutive models
Residual Stress analysis
FEM approach
Results and discussion
Conclusion
References
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UCI(KEPA) : I410-ECN-0101-2014-558-000395251