skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sectional Finite Element Analysis on Viscous Pressure Forming of Sheet Metal

Abstract

Viscous pressure forming (VPF) is a recently developed sheet flexible-die forming process, which uses a kind of semi-solid, flowable and viscous material as pressure-carrying medium that typically applied on one side of the sheet metal or on both sides of sheet metal. Different from traditional sheet metal forming processes in which sheet metal is the unique deformation-body, VPF is a coupling process of visco-elastoplastic bulk deformation of viscous medium and elasto-plastic deformation of sheet metal. A sectional finite element model for the coupled deformation between visco-elastoplastic body and elasto-plastic sheet metal was proposed to analyze VPF. The resolution of the Updated Lagrangian formulation is based on a static approach. By using static-explicit time integration strategy, the deformation of elasto-plastic sheet metal and visco-elastoplastic body can keep stable. The frictional contact between sheet metal and visco-elastoplastic body is treated by penalty function method. Using the proposed algorithm, sheet metal viscous pressure bulging (VPB) process is analyzed and compared with experiments. A good agreement between numerical simulation results and experimental ones proved the efficiency and stability of this algorithm.

Authors:
; ;  [1]
  1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001 (China)
Publication Date:
OSTI Identifier:
21061782
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 908; Journal Issue: 1; Conference: NUMIFORM 2007: 9. international conference on numerical methods in industrial forming processes, Porto (Portugal), 17-21 Jun 2007; Other Information: DOI: 10.1063/1.2740934; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALGORITHMS; ALLOYS; COMPUTERIZED SIMULATION; DEFORMATION; EFFICIENCY; ELASTICITY; FINITE ELEMENT METHOD; LAGRANGIAN FUNCTION; METALS; PLASTICITY; SHEETS; SOLIDS; STABILITY; VISCOSITY

Citation Formats

Liu Jianguang, Wang Zhongjin, and Liu Yan. Sectional Finite Element Analysis on Viscous Pressure Forming of Sheet Metal. United States: N. p., 2007. Web. doi:10.1063/1.2740934.
Liu Jianguang, Wang Zhongjin, & Liu Yan. Sectional Finite Element Analysis on Viscous Pressure Forming of Sheet Metal. United States. doi:10.1063/1.2740934.
Liu Jianguang, Wang Zhongjin, and Liu Yan. Thu . "Sectional Finite Element Analysis on Viscous Pressure Forming of Sheet Metal". United States. doi:10.1063/1.2740934.
@article{osti_21061782,
title = {Sectional Finite Element Analysis on Viscous Pressure Forming of Sheet Metal},
author = {Liu Jianguang and Wang Zhongjin and Liu Yan},
abstractNote = {Viscous pressure forming (VPF) is a recently developed sheet flexible-die forming process, which uses a kind of semi-solid, flowable and viscous material as pressure-carrying medium that typically applied on one side of the sheet metal or on both sides of sheet metal. Different from traditional sheet metal forming processes in which sheet metal is the unique deformation-body, VPF is a coupling process of visco-elastoplastic bulk deformation of viscous medium and elasto-plastic deformation of sheet metal. A sectional finite element model for the coupled deformation between visco-elastoplastic body and elasto-plastic sheet metal was proposed to analyze VPF. The resolution of the Updated Lagrangian formulation is based on a static approach. By using static-explicit time integration strategy, the deformation of elasto-plastic sheet metal and visco-elastoplastic body can keep stable. The frictional contact between sheet metal and visco-elastoplastic body is treated by penalty function method. Using the proposed algorithm, sheet metal viscous pressure bulging (VPB) process is analyzed and compared with experiments. A good agreement between numerical simulation results and experimental ones proved the efficiency and stability of this algorithm.},
doi = {10.1063/1.2740934},
journal = {AIP Conference Proceedings},
number = 1,
volume = 908,
place = {United States},
year = {Thu May 17 00:00:00 EDT 2007},
month = {Thu May 17 00:00:00 EDT 2007}
}