Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2007.10a
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- Pages.21-24
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- 2007
Testing Equipments for the Evaluation of Dynamic Tensile characteristics and the Crashworthiness of Auto-body Members
차체용 부재의 동적 인장 특성 및 충돌 특성 평가를 위한 시험장비 개발
Abstract
This paper deals with introduction of testing equipments for the evaluation of dynamic tensile characteristics of auto-body steel sheets and the crashworthiness of auto-body members. The servo-hydraulic high speed material testing machine was developed for tensile tests at the intermediate strain rate to obtain the tensile material properties at the strain rate under 500/sec. The split Hopkinson bar apparatus using the elastic wave was developed for dynamic material characteristics at the high strain rate ranged from 1,000 to 10,000/sec. The servo-hydraulic high speed crash testing machine is the equipment for the evaluation of the collapse load and crashworthiness of auto-body members. High speed carrying truck crashes to specimen with the maximum velocity of 17 m/sec.
Keywords
- Dynamic Tensile Characteristics;
- Strain Rate;
- Auto-body Members;
- High Speed Material Testing Machine;
- Hopkinson Bar;
- High Speed Crash Testing Machine