Experimental investigation of heterogeneous mechanical tests

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Experimental investigation of heterogeneous mechanical tests

GONÇALVES Mafalda, GUEGAN Briag, THUILLIER Sandrine, ANDRADE-CAMPOS António

Abstract. The virtualization of sheet metal forming processes requires a precise numerical model with an accurate description of the material behavior that is classically obtained by carrying out quasi-homogeneous mechanical tests. However, several alternatives to this time-consuming task are under study. Heterogeneous tests can provide a large quantity of mechanical information in a single experiment and, therefore, their potential needs to be investigated. This work aims to present an advanced mechanical test designed by topology optimization under experimental investigation. A numerical design methodology is described, leading to a specimen geometry that is subjected experimentally to uniaxial tensile loading up to rupture. A dual-phase DP600 steel is used. During the test, the strain field is extracted from the specimen surface using a stereo digital image correlation system, and the richness of the mechanical information is further analyzed.

Keywords
Heterogeneous Test, Digital Image Correlation, Mechanical Behavior, Sheet Metal

Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: GONÇALVES Mafalda, GUEGAN Briag, THUILLIER Sandrine, ANDRADE-CAMPOS António, Experimental investigation of heterogeneous mechanical tests, Materials Research Proceedings, Vol. 41, pp 1742-1751, 2024

DOI: https://doi.org/10.21741/9781644903131-193

The article was published as article 193 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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