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首页> 外文会议>International Conference on Aluminum Alloys >PATH INDEPENDENT POLAR EFFECTIVE PLASTIC STRAIN (PEPS) DIAGRAM FOR SHEET FORMING
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PATH INDEPENDENT POLAR EFFECTIVE PLASTIC STRAIN (PEPS) DIAGRAM FOR SHEET FORMING

机译：用于板材成型的路径独立极性有效塑料应变（PEPS）图

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This paper reviews a pre-strain effect on necking limit of sheet metal, and discusses the importance of this phenomenon to industrial applications. The paper also discusses a solution to this challenge including adaption of the stress diagram. A new type of forming limit diagram, based on a Polar plot of the Effective Plastic Strain (PEPS) is proposed that appears to be an effective solution to the problem of nonlinear effects, with advantages of the familiar strain-based diagram for linear loading, and without the strain-hardening limitations of the stress diagram, or non-intuitive aspects of the alternate Cartesian diagrams based on effective plastic strain. The benefits and limitations of each method are discussed.
机译：本文综述了对金属板颈缩限度的应变效果，并探讨了这种现象对工业应用的重要性。本文还讨论了这种挑战的解决方案，包括适应应力图。提出了一种新型的形成限位图，基于有效塑料应变（PEPS）的极性图，这似乎是对非线性效应问题的有效解决方案，具有熟悉的基于应变的线性负载图的优点，没有基于有效塑性应变的应力图的应力图的应变硬化限制，或者是备用笛卡尔图的非直观方面。讨论了每个方法的益处和限制。

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