Material parameter estimation for boron steel from simultaneous cooling and compression experiments
2005 (English)In: Modelling and Simulation in Materials Science and Engineering, ISSN 0965-0393, E-ISSN 1361-651X, Vol. 13, no 8, 1291-1308 p.Article in journal (Refereed) Published
In order to increase the accuracy of numerical simulations of the hot stamping process, reliable material data is crucial. Traditionally, the material is characterized by several isothermal compression or tension tests performed at elevated temperatures and different strain rates. The drawback of the traditional methods is the appearance of unwanted phases for some test temperatures and durations. Such an approach is also both time consuming and expensive. In the present work an alternative approach is proposed, which reduces unwanted phase changes and the number of experiments. The isothermal mechanical response is established through inverse modelling of simultaneous cooling and compression experiments. The estimated material parameters are validated by comparison with data from a separate forming experiment. The computed global response is shown to be in good agreement with the experiments.
Place, publisher, year, edition, pages
2005. Vol. 13, no 8, 1291-1308 p.
Research subject Solid Mechanics
IdentifiersURN: urn:nbn:se:ltu:diva-4410DOI: 10.1088/0965-0393/13/8/007Local ID: 25c0db70-89df-11db-8975-000ea68e967bOAI: oai:DiVA.org:ltu-4410DiVA: diva2:977283
Validerad; 2005; 20061212 (ysko)2016-09-292016-09-29Bibliographically approved