Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 12 Issue 12
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- Pages.64-71
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- 1995
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
Analysis of Dynamic Fracture Behavior by Using Instrumented Charpy Impact Test
계장화 샬피 충격시험에 의한 동적 파괴거동 해석
- Lee, O.S. ;
- Kim, S.Y. ;
- Hong, S.K.
- 이억섭 (인하대학교 기계공학과) ;
- 김선용 (유한전문대학 금형설계과) ;
- 홍성경 (인하대학교 기계공학과)
- Published : 1995.12.01
Abstract
This investigation evaluates dynamic fracture characteristics of two alloy steels (STD-11 and STS-3) and a gray cast iron (GC-30). The dynamic fracture toughness of crack initiation and some of the dynamic fracturing characteristics were evaluated by using the instrumented Charpy impact testing procedures. It was found from experimental results for three kinds of materials that inertia force is directly proportional to impact velocity. The duration time of inertia force was found to be constant regardless of impact velocities in steel specimens.
Keywords
- Dynamic Fracture Initiation Toughness of Crack;
- Instrumented Charpy Impact Test;
- Strain Gage;
- Wheatstone Bridge;
- Static Calibration;
- Inertia Force;
- Maximum Load
- 동적 균열개시인성치;
- 계장화 샬피 충격시험;
- 스트레인 게이지;
- 휘트스톤 브리지;
- 정적보정;
- 관성력;
- 최대하중;