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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Computational methods and experimental validation of welding distortion models
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Computational methods and experimental validation of welding distortion models

机译：焊接变形模型的计算方法与实验验证

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摘要

Multiply-stiffened, thin plate, welded fabrications are used in a wide variety of transport fields, however the resulting out-of-plane distortion associated with welding exacts a severe design penalty. Depending on the information required, the size of the structure under investigation and the computer power at hand, three computational strategies may be considered to predict welding distortion. If prediction of the localized residual stresses from welding is of major importance, then a full transient, uncoupled thermo-elastoplastic analysis is preferred. This method is not readily applicable to predict welding distortions in industrial-scale welded structures. More computationally efficient models are required and two other models are suggested in the current study. A series of experimental tests of a realistic nature were performed to validate the proposed computational strategies. Computational and experimental study of butt and fillet welding of small and industrial size fabrications is considered.
机译：经多重加固的薄板焊接结构可用于各种运输领域，但是与焊接相关的面外变形会带来严重的设计损失。根据所需的信息，正在研究的结构的大小以及手头的计算机功能，可以考虑采用三种计算策略来预测焊接变形。如果预测焊接产生的局部残余应力非常重要，则首选完整的瞬态，非耦合热弹塑性分析。该方法不适用于预测工业规模焊接结构中的焊接变形。需要更有效的计算模型，并且在当前研究中提出了另外两个模型。进行了一系列实际的实验测试，以验证所提出的计算策略。考虑了对小型和工业尺寸构件的对接和角焊的计算和实验研究。

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