A study on the effect of dynamic material strain on the dynamic crushing behavior of steel structures subjected to impact loads
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Several studies have been conducted on dynamic impact crushing testing on a steel tube with a square cross-section to investigate the dynamic effect on the crushing behavior of a plate structure under dynamic loads. We focused on the effect of dynamic material strain on the dynamic crushing behavior of steel structures subjected to impact loads, such as ship-to-ship collisions and shipto- bridge impacts. The authors proposed optimized finite element models and compared the results with experimental results to obtain accurate simulation results. To consider the dynamic effect of dynamic yield strength with loading speed, the yield strength was calculated by the strain rate considering the loading speed applied in the actual experiment and implemented in the simulations. The results of this study showed the importance of considering the variation in yield strength according to the strain rate in dynamic crushing simulations to evaluate the crushworthiness of steel structures.
Abstract
Several studies have been conducted on dynamic impact crushing testing on a steel tube with a square cross-section to investigate the dynamic effect on the crushing behavior of a plate structure under dynamic loads. We focused on the effect of dynamic material strain on the dynamic crushing behavior of steel structures subjected to impact loads, such as ship-to-ship collisions and shipto- bridge impacts. The authors proposed optimized finite element models and compared the results with experimental results to obtain accurate simulation results. To consider the dynamic effect of dynamic yield strength with loading speed, the yield strength was calculated by the strain rate considering the loading speed applied in the actual experiment and implemented in the simulations. The results of this study showed the importance of considering the variation in yield strength according to the strain rate in dynamic crushing simulations to evaluate the crushworthiness of steel structures.
참고문헌 (13)
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