Prediction of Distortion Produced on Welded Structures during Assembly Using Inherent Deformation and Interface Element
Prediction of Distortion Produced on Welded Structures during Assembly Using Inherent Deformation and Interface Element
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发表时间：
2009-12
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通讯作者：
H. Murakawa;D. Deng;S. Rashed;Shinji Sato
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作者：
H. Murakawa;D. Deng;S. Rashed;Shinji Sato
本研究的目的是发展一个实用的有限元方法来预测焊接装配下的结构变形。在该方法中，可以考虑由各种热过程，如切割，成形，焊接和矫直产生的变形。这些变形是使用固有应变模拟的。另一方面，在拟合过程期间如何控制间隙和未对准的细节也对失真具有显著影响。零件之间的间隙和未对准使用界面元素建模。通过简单的例子证明了所提出的方法的潜在能力。
The objective of this research is to develop a practically useful finite element method for predicting distortions of structures under welding assembly. In this method, distortions produced by various thermal processes, such as the cutting, the forming, the welding and the straightening can be considered. These distortions are simulated using the inherent strain. On the other hand, the detail of how the gaps and the misalignments are controlled during the fitting process also has significant influence on the distortion. The gaps and the misalignments between parts are modeled using the interface element. The potential capability of the proposed method is demonstrated through simple examples.