Competition between surface defects and residual stresses on fatigue behaviour of shot peened forged components
Article dans une revue avec comité de lecture
Author

206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]

206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
Date
2016Journal
Procedia Structural IntegrityAbstract
The present study focuses on analysing and modelling the influence on fatigue behaviour of the surface of a hot-forged C70 connecting rod which undergoes a shot-blasting treatment. The shot-blasting heavily affects the surface and thus the fatigue properties. In addition, the forging process induces large defects which also have an effect on the fatigue strength. So as to be able to determine which aspects of the surface integrity are the most influential in fatigue, various surface states were thoroughly characterised and then tested in high cycle fatigue in bending. The various aspects studied are the surface roughness and large defects, residual stresses, microstructure and hardness. The aim of this work is to develop a fatigue design approach that can take into account both the effect of the surface defects and that of the residual stresses on fatigue.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureGERIN, Benjamin; PESSARD, Etienne; MOREL, Franck; VERDU, Catherine; MARY, Alain (Elsevier, 2016)Cold extrusion is a process commonly used to manufacture drive train components in the automotive industry. Large plastic strains can be applied during this operation (up to 1.5) and greatly changes the mechanical properties ...
-
Article dans une revue avec comité de lectureHot-forging is a process commonly used in the manufacturing of automobile parts such as connecting rods. Most hot-forged components are shot-blasted after forging in order to clean off the forging scale. The shotblasting ...
-
Communication avec acteGERIN, Benjamin; PESSARD, Etienne; MOREL, Franck; VERDU, Catherine (Société Française de Métallurgie et de Matériaux, 2014)The present study focusses on analysing and modelling the influence on fatigue behaviour of the surface of a hot-forged C70 connecting rod which undergoes a shot-blasting treatment. The shot-blasting heavily affects the ...
-
Article dans une revue avec comité de lectureGERIN, Benjamin; PESSARD, Etienne; MOREL, Franck; VERDU, Catherine; MARY, Alain (2016)La déformation introduite dans le matériau par les procédés de forgeage à froid peut être considérée comme un type de pré-déformation, appliquée avant l’utilisation en fonctionnement du composant. Cette déformation modifie ...
-
Communication avec acteGERIN, Benjamin; PESSARD, Etienne; MOREL, Franck; VERDU, Catherine (2014)The present study focuses on analysing and modelling the influence on fatigue behaviour of the surface of a hot-forged C70 connecting rod which undergoes a shot-blasting treatment. The shot-blasting heavily affects the ...