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Finite element modelling and analysis of bolted joints of 3D tubular structures

机译:3D管状结构螺栓连接的有限元建模与分析

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摘要

In the paper, research results on a special joint of a new type of steel cooling tower are presented. The structural members are tubular elements with high radius-to-thickness ratios. The 3D jointing and the bolted connections result in extremely complex joints that should be studied by experiments and advanced analysis. This paper focuses on the numerical modelling of two joint prototypes. The models are verified by test results. Virtual experiments are completed to study the elastic load-transfer as well as the ultimate behaviour. On these bases, the failure modes are determined and characterized, and the design procedure is improved.
机译:本文介绍了新型钢冷却塔特殊接头的研究成果。结构构件是具有高半径-厚度比的管状元件。 3D接头和螺栓连接导致接头极其复杂,应通过实验和高级分析进行研究。本文着重于两个联合原型的数值建模。通过测试结果验证模型。虚拟实验已经完成,以研究弹性载荷传递以及最终行为。在此基础上,确定并确定了失效模式,并改进了设计程序。

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