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

  Info
Periodical
Edited by
R.A.W. Mines and J.M. Dulieu-Barton
Pages
299-304
DOI
10.4028/www.scientific.net/AMM.24-25.299
Citation
R. Lacroix, J. Monatte, A. Lens, G. Kermouche, J.M. Bergheau, H. Klocker, "Spot Weld Strength Determination Using the Wedge Test: In Situ Observations and Coupled Simulations", Applied Mechanics and Materials, Vols. 24-25, pp. 299-304, 2010
Online since
June 2010
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