A Study on dynamic Fracturing Behavior of Anisotropic Granite by SHPB Test

스플릿 흡킨슨 바(SHPB)를 이용한 이방성 화강암의 동적파괴거동 연구

  • 최미진 (전남대학교 대학원 지구시스템공학과) ;
  • 조상호 (전북대학교 에너지자원공학과) ;
  • 양형식 (전남대학교 건설지구환경공학과)
  • Published : 2008.06.30


Dynamic fracturing of anisotropic granite was investigated by SHPB (Split Hopkinson Pressure Bar). Energy absorption during the test and maximum stress were increased as strain rate increased. Maximum stresses in every direction were dependent on the strain rate but not so sensitive to anisotropy. Elastic wave velocity was decreased as strain rate increased and dependent on strain rate in every direction. Especially, elastic wave velocity decreased more rapidly in a strong rock.


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