Fatigue Life of Multi-Spot Welded Structures

Abstract:

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A procedure that makes use of a conventional stress value (ERS) is applied to spot welded joints. The ERS can be evaluated for every spot weld of the structural model. Through the use of ERS-N curves, fatigue data performed on different joint geometries can be successfully mixed together. One of the main aspects is that progressive damage deeply influences fatigue behaviour, so that a simple numerical solution neglecting accumulated damage is unable to foresee the whole fatigue life. In the present paper the method has been applied to many experimental results: it is shown that a unique criterion is able to deal with several different structures and materials.

Info:

Periodical:

Key Engineering Materials (Volumes 348-349)

Edited by:

J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel

Pages:

249-252

DOI:

10.4028/www.scientific.net/KEM.348-349.249

Citation:

P. Salvini et al., "Fatigue Life of Multi-Spot Welded Structures", Key Engineering Materials, Vols. 348-349, pp. 249-252, 2007

Online since:

September 2007

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Price:

$35.00

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