The hole drilling method is one of the most used semi-destructive techniques for residual stress analysis in mechanical parts. In the presence of non-uniform residual stress, the stress field can be determined from the measured relaxed strains using several methods, but the most used one is the so called integral method. This method is characterised by some simplifications that lead to approximate results especially when the residual stress varies abruptly. In this paper a new calculation procedure based on the Newton-Raphson method for the determination of zeroes of functions is presented. The advantages of the method are also explained and validated by the application to simulated stress fields.

PETRUCCI G, SCAFIDI M (2007). Una nuova procedura per il calcolo delle tensioni residue con il metodo della rosetta forata basata sulla tecnica di Newton-Raphson. In XXXVI convegno nazionale AIAS.

Una nuova procedura per il calcolo delle tensioni residue con il metodo della rosetta forata basata sulla tecnica di Newton-Raphson

PETRUCCI, Giovanni;SCAFIDI, Michele
2007-01-01

Abstract

The hole drilling method is one of the most used semi-destructive techniques for residual stress analysis in mechanical parts. In the presence of non-uniform residual stress, the stress field can be determined from the measured relaxed strains using several methods, but the most used one is the so called integral method. This method is characterised by some simplifications that lead to approximate results especially when the residual stress varies abruptly. In this paper a new calculation procedure based on the Newton-Raphson method for the determination of zeroes of functions is presented. The advantages of the method are also explained and validated by the application to simulated stress fields.
Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di Macchine
set-2007
XXXVI convegno nazionale AIAS
Ischia (Na)
4-8 SETTEMBRE 2007
2007
10
PETRUCCI G, SCAFIDI M (2007). Una nuova procedura per il calcolo delle tensioni residue con il metodo della rosetta forata basata sulla tecnica di Newton-Raphson. In XXXVI convegno nazionale AIAS.
Proceedings (atti dei congressi)
PETRUCCI G; SCAFIDI M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/23575
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