Modeling and experimental verification of simultaneous tension and torsion in a cylindrical element with a surface layer

✍ Scribed by Grzegorz Starzynski

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 693 KB
• Volume: 32
• Category: Article
• ISSN: 0142-1123
• DOI: 10.1016/j.ijfatigue.2010.01.007

✦ Synopsis

This paper presents a simulative method which takes into consideration the influence of a surface layer on the stresses observed during low-cycle fatigue regions of tension and torsion and after loadings. The cyclic loading model is described for an axial-symmetric cylinder with a surface layer. The layer is divided into several zones (shells), which enable the introduction of material property changes and residual stresses as a function of the distance from the surface. This work also introduces a comparison of the evolution of residual stresses counted and measured experimentally with shot peened samples after cyclic tension and torsion. The experimental results agree well with the simulation.