Importance of considering a material micro-failure criterion in the numerical modelling of the shot peening process applied to parabolic leaf springs
Tipo
Artigo
Data de publicação
2010
Periódico
Latin American Journal of Solids and Structures
Citações (Scopus)
11
Autores
Gonzales M.A.C.
Barrios D.B.
de Lima N.B.
Goncalves E.
Barrios D.B.
de Lima N.B.
Goncalves E.
Orientador
Título da Revista
ISSN da Revista
Título de Volume
Membros da banca
Programa
Resumo
Shot peening is a cold-working mechanical process in which a shot stream is propelled against a component surface. Its purpose is to introduce compressive residual stresses on component surfaces for increasing the fatigue resistance. This process is widely applied in springs due to the cyclical loads requirements. This paper presents a numerical modelling of shot peening process using the finite element method. The results are compared with experimental measurements of the residual stresses, obtained by the X-rays diffraction technique, in leaf springs submitted to this process. Furthermore, the results are compared with empirical and numerical correlations developed by other authors.