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Title:

Numerical determination of the onset of local necking using time dependent evaluation method and dynamic material parameters

Document type:
Zeitschriftenaufsatz
Author(s):
Jocham, D.; Volk, W.
Abstract:
The forming limit curve (FLC) is a valid instrument for the evaluation of failure in sheet metal processes. However, its experimental evaluation is challenging, in particular for modern lightweight sheet metals, in which the failure occurs without an evident necking transition. Therefore, the numerical analysis can represent a valid alternative for the investigation of the onset of necking phenomena. Prerequisite for realistic failure prediction are an accurate material characterization for high...     »
Keywords:
Strain rate sensitivity, Hydraulic bulge test, Tensile test, Dynamic material parameters, Material characterisation, time dependent evaluation method, local necking
Journal title:
J. Phys.: Conf. Ser. 734 032015
Year:
2016
Journal volume:
734
Pages contribution:
032015
Reviewed:
ja
Fulltext / DOI:
doi:10.1088/1742-6596/734/3/032015
Publisher:
IOP Publishing
E-ISSN:
1742-65881742-6596
Date of publication:
01.08.2016
TUM Institution:
Lehrstuhl für Umformtechnik und Gießereiwesen
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