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.

Salvini, P., Vivio, F., & Vullo, V. (2007). Fatigue life of multi-spot welded structures. In Advances in Fracture and Damage Mechanics VI (pp.249). STAFA-ZURICH : TRANS TECH PUBLICATIONS LTD.

Fatigue life of multi-spot welded structures

SALVINI, PIETRO;VIVIO, FRANCESCO;VULLO, VINCENZO
2007

Abstract

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.
6th International Conference on Fracture and Damage Mechanics
Madeira, PORTUGAL
JUL 17-19, 2007
Inst Super Tecn, ICIST, Inst Engenhar Esruturas, Territor Construcao, Harbin Engn Univ
Rilevanza internazionale
2007
Settore ING-IND/14 - Progettazione Meccanica e Costruzione di Macchine
eng
Intervento a convegno
Salvini, P., Vivio, F., & Vullo, V. (2007). Fatigue life of multi-spot welded structures. In Advances in Fracture and Damage Mechanics VI (pp.249). STAFA-ZURICH : TRANS TECH PUBLICATIONS LTD.
Salvini, P; Vivio, F; Vullo, V
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/52265
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