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Study of correspondence between press hardened components and simulated models
2010 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This master thesis was performed at the R&D division at Gestamp HardTech in Luleå. Gestamp HardTech is a global leader in the development and manufacturing of safety components for the automotive industry and the production is based on the press hardening technique. The goal of the thesis was to get a better understanding of how forming simulations correlates with the produced products. In order to achieve this understanding a correlation study was made where the produced products were compared with forming simulations. When the current correlation had been established further analysis were performed in order to achieve better correlations. These analyses were performed using the optimization software LS-OPT combined with the finite element solver LS-DYNA. In order to reduce the simulation time for forming simulations, different simulation time reduction methods were studied as well. These studies cover the use of selective mass scaling, increased element size and reduced number of integration points. The simulation result from the optimized forming simulations showed a much improved correlation with the press hardened product. The optimization showed that the frictional settings used today in forming simulations are set too low and are in need of adjustments.

Place, publisher, year, edition, pages
2010.
Keyword [en]
Technology, Forming simulation, LS-DYNA, LS-OPT, Optimization, Correlation, study, Selective mass scaling, Friction
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-50287ISRN: LTU-EX--10/021--SELocal ID: 78c62203-f0e3-4658-a849-40adcf11a031OAI: oai:DiVA.org:ltu-50287DiVA: diva2:1023644
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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  • apa
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