콘텐츠 본문
논문 국내 국내전문학술지(KCI급) 필라멘트 와인딩 복합재 압력용기의 접착 체결부에 대한 점진적 파손 해석
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2014-11
- 저자명 김준환, 신광복, 황태경
- 학술지명 대한기계학회 논문집 A권
- 발행처명 대한기계학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 3
- 논문 다운로드 링크(외부) https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART001925656
논문 초록 (Abstract)
This study performed the progressive failure analysis of adhesive joints of a composite pressure vessel with a separated dome by using a cohesive zone model. In order to determine the input parameters of a cohesive element for numerical analysis, the interlaminar fracture toughness values in modes I and II and in the mixed mode for the adhesive joints of the composite pressure vessel were obtained by a material test. All specimens were manufactured by the filament winding method. A mechanical test was performed on adhesively bonded double-lap joints to determine the shear strength of the adhesive joints and verify the reliability of the cohesive zone model for progressive failure analysis. The test results showed that the shear strength of the adhesive joints was 32MPa; the experiment and analysis results had an error of about 4.4%, indicating their relatively good agreement. The progressive failure analysis of a composite pressure vessel with an adhesively bonded dome performed using the cohesive zone model showed that only 5.8% of the total adhesive length was debonded and this debonded length did not affect the structural integrity of the vessel.
