A Study on the Effects of Mass and Velocity Factor for the Dynamic-Explicit FEM in the Upsetting Process

Chun Ho Liu

doi:10.4028/www.scientific.net/MSF.505-507.715

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Computer Modeling of Extrusion by the Rigid-Plastic Hybrid Element Method
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An Elasto-Plastic Finite Element Analysis of the Hat-Type Drawing Process of Sheet Metal
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A Study on the Effects of Mass and Velocity Factor for the Dynamic-Explicit FEM in the Upsetting Process
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Size Effects on Sheet-Metal Formability for Miniature Parts
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A Study of Optimum Blank in the Deep Drawing Process of Square Cup with Flange by Using Adaptive Network Fuzzy Inference System
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A Finite Element Analysis for the Forging Process of Hollow Spur Gear
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The Hydroforming of Micro-Square Tubes With Non-Equal Section and Dendritic Shape
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HomeMaterials Science ForumMaterials Science Forum Vols. 505-507A Study on the Effects of Mass and Velocity Factor...

A Study on the Effects of Mass and Velocity Factor for the Dynamic-Explicit FEM in the Upsetting Process

Abstract:

Currently, the numerical simulations of metal forming are developed rapidly and widely. In this investigation, a dynamic-explicit FEM code, LS-DYNA, is adopted. Attention on applications of the velocity and mass scaling techniques for the quasi-static upsetting process are modeled. With the differences being variations in the die and punch velocities, the material density, and the mesh type, their effects on the predicted load-reduction height are assessed. Through comparison with experiments, the numerical results have a same tendency as in test works. The influences of the velocity and mass factors are presented, the usage of these scaling factors at proper time also discussed.

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Materials Science Forum (Volumes 505-507)

Pages:

715-720

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.505-507.715

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Online since:

January 2006

Authors:

Chun Ho Liu

Keywords:

Dynamic-Explicit FEM, Metal Forming, Quasi-Static, Scaling Techniques, Upsetting

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