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Spot Weld Strength Determination Using the Wedge Test: In Situ Observations and Coupled Simulations

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Abstract:

This paper describes an innovative way to characterize the strength of spot welds. A wedge test has been developed to generate interfacial failures in weldments and observe in-situ the crack propagation. An energy analysis quantifies the spot weld crack resistance. Finite Element calculations investigate the stresses and strains along the crack front. A comparison of the local loading state with experimentally observed crack fronts provides the necessary data for a failure criterion in spot weld fusion zones. The method is applied to spot welds of Advanced High Strength steels.

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Periodical:

Applied Mechanics and Materials (Volumes 24-25)

Pages:

299-304

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.24-25.299

Citation:

Cite this paper

Online since:

June 2010

Authors:

Rémi Lacroix, Joël Monatte, Arnaud Lens, Guillaume Kermouche, J.M. Bergheau, Helmut Klocker

Keywords:

High Strength Steel (HSS), In Situ, Spot Weld, Wedge Test

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Creative Commons CC BY 4.0

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