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首页> 外文期刊>Journal of Materials Processing Technology >Springback variational principles of bending of straight beams with large deflection
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Springback variational principles of bending of straight beams with large deflection

机译：大挠度直梁弯曲的回弹变分原理

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摘要

All of molding materials after bending have large elastoplastic deformation. The final form of a part depends on the springback amount. The conceptions of forming springback anti-coupled systems and equations of bending of straight beam with large deflection are first introduced in present study. And then on the basis of the conceptions, the springback principle of the minimum potential energy and the generalized springback principle of potential energy of bending of straight beams with large deflection are established. Finally according to the springback principle of minimum potential energy, springback finite element method is derived and a numerical example is calculated.
机译：弯曲后的所有成型材料都具有较大的弹塑性变形。零件的最终形式取决于回弹量。本研究首先介绍了形成回弹反耦合系统的概念以及大挠度直梁的弯曲方程。在此基础上，建立了最小势能的回弹原理和大挠度直梁弯曲势能的广义回弹原理。最后，根据最小势能的回弹原理，推导了回弹有限元法并计算了数值算例。

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