Investigation Into Post-Ultimate Strength Behavior of Ship’s Hull Girder in Waves by Analytical Solution
Investigation Into Post-Ultimate Strength Behavior of Ship’s Hull Girder in Waves by Analytical Solution
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DOI：
10.1115/omae2011-49617
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Weijun Xu;K. Iijima;M. Fujikubo
中科院分区：
文献类型：
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作者：
Weijun Xu;K. Iijima;M. Fujikubo
为了合理评估船体梁倒塌的后果，需要了解船体梁在极限载荷作用下的强度后行为，包括整体变形和运动。在上述研究中，作者提出了一个数值分析系统来预测波浪中的倒塌行为，包括极限后强度行为。本文提出了一种描述极限后强度行为的解析解。本研究的主要目的是澄清的参数依赖性的严重程度的崩溃，以合理的方式。这些参数可以包括与承载能力相关的参数和与极限载荷相关的参数。通过与数值计算结果的比较，证明了解析解的有效性。基于解析解，得到了预测坍塌严重程度的重要参数。Copyright © 2011 by ASME
To rationally assess the consequence of a ship’s hull girder collapse, it is necessary to know the post-ultimate strength behavior of the hull girder including the global deformation and motions under wave-induced extreme loads. In the foregoing research, the authors proposed a numerical analysis system to predict the collapse behavior in waves including the post-ultimate strength behavior. In this paper, an analytical solution to describe the post-ultimate strength behavior is proposed. The primary objective of the present research is to clarify the parametric dependencies of the severity of the collapse in a rational manner. The parameters may include those related to load-carrying capacity and those related to the extreme loads. By comparing the numerical results and the present results, the analytical solution is shown to be effective. Some important parameters to predict the severity of the collapse are derived based on the analytical solution.Copyright © 2011 by ASME