Elastic-Plastic Dynamic Beam under Slamming Loads

机译：冲击载荷下的弹塑性动力梁

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The paper presents the results of a study on dynamic buckling properties of simply supported beams under different slamming loads, including the influences of initial geometric imperfection and load duration. The theory of statistical material's constitutive relation is applied in demonstrating the fundamentals of the study with their solutions. Budiansky and Roth (B-R) criterion is employed in determining the dynamic buckling of beams. The developed method is evaluated by two types of beam i. e., one with a large slenderness whose critical buckling stress applied is within the limit of the material elasticity and the other with a mediate slenderness of a critical buckling stress approaching to the material yield limit. Detailed calculation results of the two types of beams are presented and discussed comparatively with that of a beam with linear strain- hardening materials. The paper is concluded with findings of the study.

机译：本文介绍了在不同的冲击载荷下简支梁的动态屈曲特性的研究结果，包括初始几何缺陷和载荷持续时间的影响。统计资料的本构关系理论用于说明研究的基础及其解决方案。 Budiansky and Roth（B-R）准则用于确定梁的动态屈曲。所开发的方法通过两种类型的光束i进行评估。例如，一个具有较大的细长度，其所施加的临界屈曲应力在材料弹性的极限之内，而另一个具有中等的临界屈曲应力的细长度，其接近材料的屈服极限。给出了两种类型梁的详细计算结果，并与具有线性应变硬化材料的梁进行了比较。本文总结了研究结果。

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来源
《Ship Design, Production and Operation》|2007年|247-253|共7页
会议地点 Harbin(CN)
作者
Wenqian SHANG; rnHongbin DONG; rnHaibin ZHU; rnYongbin WANG;
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作者单位

Yangshan Dai@College of Shipbuilding Engineering, Harbin Engineering University, Harbin (15001), China--Fasuo Yan@College of Shipbuilding Engineering, Harbin Engineering University, Harbin (15001), China--Xuekang Gu@China Ship Scientific Research Center, Wuxi (214082), China--Chengyang Peng@College of Shipbuilding Engineering, Harbin Engineering University, Harbin (15001), China--;

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原文格式 PDF
正文语种 eng
中图分类船舶工程;
关键词
dynamic buckling; slamming load; B-R criterion; initial perfection; load duration;

机译：动态屈曲；冲击载荷； B-R准则；初始完善；载荷持续时间;

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4. Elastic-Plastic Dynamic Beam under Slamming Loads [C] . AsiaLink-EAMARNET International Conference on Ship Design, Production Operation . 2007

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5. THE EFFECT OF HULL STIFFNESS ON SHIP SLAMMING LOADS (HYDRODYNAMIC IMPACT). [D] . KAO, YUAN-KUO. 1984

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8. Numerical Calculation of Large Elastic-Plastic Deformation of Beams Due to Dynamic Loading. [R] . Sperling, A., Partom, Y. 1975

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Elastic-Plastic Dynamic Beam under Slamming Loads

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