Artículos de revistas
Importance of considering a material micro-failure criterion in the numerical modelling of the shot peening process applied to parabolic leaf springs
LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES, v.7, n.1, p.21-40, 2010
GONZALES, Miguel Angel Calle
BARRIOS, Daniel Benitez
LIMA, Nelson Batista de
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.