한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제11권2호
  • /
  • Pages.134-140
  • /
  • 1994
  • /
  • 1225-9071(pISSN)
  • /
  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

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
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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.

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