Fracture modelling of magnesium sheet alloy AZ31 for deep drawing processes at elevated temperatures
Fracture modelling of magnesium sheet alloy AZ31 for deep drawing processes at elevated temperatures
复制标题
用于高温深拉工艺的镁板合金 AZ31 的断裂建模
DOI:
10.1016/j.promfg.2020.08.133
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Dykiert
中科院分区:
文献类型:
--
作者:
Behrens;Wester;Dykiert
Today, the reduction of CO2 emissions is essential to meet global climate requirements. In this context, a reduction in vehicle weight is the most efficient way to reduce the fuel consumption of a passenger car. Magnesium combines relatively high strength with low weight and is therefore an interesting construction material for lightweight solutions. In numerical process design, it is essential to be aware of the forming capacity of a material. The common method to describe the failure behaviour is the use of forming limit curve (FLC). Stress-based models offer the advantage of a strain path consideration and an extension in the area of shearing and compression. In this paper a stress-based damage model, Modified Mohr-Coulomb (MMC), was parameterized by IFUM Butterfly-Tests for an AZ31 magnesium sheet alloy under consideration of elevated process temperatures. For this purpose, the tests were carried out at different stress states and temperatures using a specially designed testing device. In addition, forming limit curves were determined by Nakajima tests. Finally, both methods, MMC and FLC, were compared to an experimental deep-drawing test. This comparison showed that the MMC Model achieved significantly better results regarding the fracture prediction in this application case.
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DOI:
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发表时间:
2007
期刊:
影响因子:
--
作者:
A. Forcellese;M. Mehtedi;M. Simoncini;S. Spigarelli
通讯作者:
S. Spigarelli
DOI:
10.1088/1742-6596/896/1/012019
发表时间:
2017
期刊:
Journal of Physics: Conference Series
影响因子:
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作者:
Behrens;Bouguecha;Dykiert
通讯作者:
Dykiert
DOI:
10.1016/j.promfg.2019.02.161
发表时间:
2019
期刊:
Procedia Manufacturing
影响因子:
--
作者:
Behrens;Chugreev;Dykiert
通讯作者:
Dykiert
DOI:
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发表时间:
2016
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作者:
I. Peshekhodov;S. Jiang;M. Vucetic;A. Bouguecha;B
通讯作者:
B
DOI:
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发表时间:
2016
期刊:
影响因子:
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作者:
I. Peshekhodov;M. Dykiert;M. Vucetic;B. Behrens
通讯作者:
B. Behrens