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A finite element model for thermomechanical analysis of sheet metal forming
SSAB HardTech.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.ORCID iD: 0000-0001-7074-8960
2004 (English)In: International Journal for Numerical Methods in Engineering, ISSN 0029-5981, E-ISSN 1097-0207, Vol. 59, no 9, p. 1167-1186Article in journal (Refereed) Published
Abstract [en]

A thermal model based on explicit time integration is developed and implemented into the explicit finite element code DYNA3D to model simultaneous forming and quenching of thin-walled structures. A staggered approach is used for coupling the thermal and mechanical analysis, wherein each analysis is performed with different time step sizes. The implementation includes a thermal shell element with linear temperature approximation in the plane and quadratic in the thickness direction, and contact heat transfer. The material behaviour is described by a temperature-dependent elastic-plastic model with a non-linear isotropic hardening law. Transformation plasticity is included in the model. Examples are presented to validate and evaluate the proposed model. The model is evaluated by comparison with a one-sided forming and quenching experiment

Place, publisher, year, edition, pages
2004. Vol. 59, no 9, p. 1167-1186
National Category
Applied Mechanics
Research subject
Solid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-11696DOI: 10.1002/nme.911ISI: 000189247900002Local ID: ab5a55c0-bb55-11db-b560-000ea68e967bOAI: oai:DiVA.org:ltu-11696DiVA, id: diva2:984646
Note
Validerad; 2004; 20070110 (inah)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Oldenburg, Mats

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