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首页> 外文期刊>Ocean Engineering >Framework of computational approach based on inherent deformation for welding buckling investigation during fabrication of lightweight ship panel
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Framework of computational approach based on inherent deformation for welding buckling investigation during fabrication of lightweight ship panel

机译：基于固有变形的计算方法框架在轻型船面板制造过程中的焊接屈曲研究

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摘要

During the fabrication of lightweight ship panel, thin plates are usually employed and welding induced buckling may be generated, which will significantly influence the manufacturing integrity and performance. Computational approach based on inherent deformation was proposed, and its framework and application were introduced in this study. In detail, typical fillet welded joint was experimentally conducted and its solid elements FE model was numerically examined with experimental validation. Then, welding inherent deformation was evaluated based on computational results; elastic FE analysis with welding inherent deformations as input parameters was implemented to predict out-of-plane welding distortion and critical welding buckling condition. As the practical technique, intermittent welding procedure was employed to decrease the magnitude of welding inherent deformation, and sequentially avoid the occurrence of welding induced buckling. With this holistic investigation, welding induced buckling during thin plate section assembly was represented; critical welding buckling condition and mitigation technique were also demonstrated.
机译：在制造轻型船面板时，通常使用薄板，并且可能会产生焊接引起的屈曲，这将严重影响制造的完整性和性能。提出了基于固有变形的计算方法，并介绍了其框架和应用。详细地，对典型的角焊缝进行了实验，并通过实验验证了其实体元素的有限元模型。然后，根据计算结果评估焊接固有变形；进行了以焊接固有变形为输入参数的弹性有限元分析，以预测面外焊接变形和临界焊接屈曲条件。作为实用技术，采用间歇焊接程序来减小焊接固有变形的幅度，并顺序避免焊接引起的屈曲。通过这种整体研究，可以表示薄板型材组装过程中焊接引起的屈曲。还展示了关键的焊接屈曲条件和缓解技术。

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