ANALYSIS AND CONTROL OF DISTORTION IN WELDED ALUMINUM STRUCTURES
ANALYSIS AND CONTROL OF DISTORTION IN WELDED ALUMINUM STRUCTURES
复制标题
焊接铝结构变形分析与控制
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
V. Papazoglou
中科院分区：
文献类型：
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作者：
K. Masubuchi;V. Papazoglou
麻省理工学院最近的调查结果。综述了铝合金焊接结构变形分析与控制的研究进展。在对变形问题作了简要概述后，分析了三种焊接变形：纵向弯曲变形、面外角变形和屈曲变形。实验结果，并在麻省理工学院开发的计算机程序获得的预测进行比较。这些类型的失真的控制方法提出。这些方法包括弹性预应变法、差热法和焊接过程中拉伸应力的应用。它的结论是，到目前为止开发的计算机程序，适当的修改，是非常有用的设计师和制造商在处理变形问题。他们可以是一个综合系统的一部分，能够确定最佳值的参数的问题，考虑到结构流体动力学和制造的考虑。
Results of recent investigations at M.I.T. on the subject of analysis and control of distortion in welded aluminum structures are summarized. After a brief overview of the distortion problem as a whole, three kinds of welding distortion are analyzed: longitudinal bending distortion, out-of-plane angular distortion, and buckling distortion. Experimental results are presented and compared with predictions obtained by computer programs developed at M.I.T. Methods for the control of these kinds of distortion are proposed. They include the elastic prestraining method, the differential heating methods, and the application of tensile stresses during welding. It is concluded that the computer programs developed so far can, with proper modifications, be very useful to designers and fabricators in dealing with the distortion problem. They can be part of an integrated system capable of determining the optimum values for the parameters of the problem, taking into account structural hydrodynamics and fabrication considerations.