한국해양공학회:학술대회논문집 (Proceedings of the Korea Committee for Ocean Resources and Engineering Conference)
- 한국해양공학회 2003년도 추계학술대회 논문집
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- Pages.64-69
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- 2003
판의 찢김 손상 추정을 위한 실험 연구
An Experimental Study on the Estimation of the Plate Tearing Damage
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양박달치
(울산대학교 수송시스템공학부)
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Yang, Park-Dal-Chi
(School of Transportation Systems Engineering, University of Ulsan)
- 발행 : 2003.10.24
초록
This paper describes a study on the tearing damage of the ship's bottom plating during a grounding. It has been known widely that difference scaling laws are applied for bodies undergoing simultaneously plastic flow and crack propagation in the deformation of the plate tearing. Especially, the basic scaling law is not followed for the fracture. In this study plate cutting experiments for the geometrically similar models have been performed in order to verify the problem. From the experimental results, it has been observed that the cutting forces and energy for the larger models are significantly lower than those of the smaller models the damage become large. A simplified analytical method for the estimation of tearing is proposed based on the experiments and it has been observed that the results of the present formula are correlated very well with the experiments
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