한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)
- 제11권2호
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- Pages.134-140
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- 1994
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
동적 하중을 받는 3점 굽힘 시험편들에서의 J와 CMOD와의 관계
Relation between J and CMOD in dynamic loaded 3-point bend specimens
- 이억섭 (인하대학교 기계공학과) ;
- 차일남 (서울산업대학교 자동차공학과) ;
- 조재웅 (천안공업전문대학 자동차과)
- Lee, Ouk-S. ;
- Cha, Il-Nam ;
- Cho, Jae-Ung
- 발행 : 1994.04.01
초록
Numerical caiculations are made in order to find a possible relation between the J-integral and the crack mouth opening displacement(CMOD) in dynamic nonlinear fracture experiments. Both elastic-plastic and elastic-viscoplastic materials are considered at different impact velocities. The J-integral may be estimated from the crack mouth opening displacement which can be measured directiy from photographs taken during dynamic experiments.
키워드