Material parameter estimation for boron steel from simultaneous cooling and compression experiments

被引：43

作者：

Åkerström, P ^{[1
]}

Wikman, B ^{[1
]}

Oldenburg, M ^{[1
]}

机构：

[1] Lulea Univ Technol, Div Solid Mech, SE-97187 Lulea, Sweden

来源：

MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING | 2005年 / 13卷 / 08期

关键词：

D O I：

10.1088/0965-0393/13/8/007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：1291 / 1308

页数：18

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