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Journal articles
Numerical formulations and algorithms for solving contact problems in metal forming simulation
Abstract : The problem of contact between a part and a tool or between two deforming bodies is analysed in view of metal-forming processes. For simplicity, only the case of viscoplastic materials is considered. The velocity formulation is presented. The contact with a rigid tool is considered first and various forms of contact formulations are described: nodal contact, integral or discrete formulation with a penalty or with a Lagrange multiplier method. The time integration is considered which results in various explicit or;implicit contact formulations. A special attention is paid to the contact between two deforming bodies or to the self-contact when a fold is generated in the work-piece. Some 2-D and 3-D application examples illustrate the effectiveness of the proposed formulations and algorithms.
https://hal-mines-paristech.archives-ouvertes.fr/hal-00541005
Contributor : Corinne Matarasso <>
Submitted on : Monday, November 29, 2010 - 4:03:34 PM
Last modification on : Wednesday, October 14, 2020 - 3:48:23 AM
Contributor : Corinne Matarasso <>
Submitted on : Monday, November 29, 2010 - 4:03:34 PM
Last modification on : Wednesday, October 14, 2020 - 3:48:23 AM