Investigation of high cycle and low cycle fatigue interaction on fretting behavior

✍ Scribed by S. Naboulsi; S. Mall

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 353 KB
• Volume: 44
• Category: Article
• ISSN: 0020-7403
• DOI: 10.1016/s0020-7403(02)00063-2

✦ Synopsis

Fretting-fatigue behavior and damage accumulation under a variable-amplitude cycling load is investigated in a conÿguration involving a cylindrical indenter in contact with ÿnite width plate. Relative magnitudes of cyclic tangential and bulk loads not only a ect the contact conditions, but also their relative positions with respect to each other. Several stick-slip conditions on the contact surface may develop during the application of variable-amplitude fatigue load, and these are secondary and tertiary slips as well as shake-down. Further, residual shear traction develops during the application of cyclic load. The appropriate characterization of fretting-fatigue behavior or life should, therefore, include the complete history of applied cyclic tangential and bulk loads. Furthermore, experiments from a previous study conducted under a variable-amplitude fatigue loading condition are analyzed to characterize the damage accrual from its individual components involving constant-amplitude fatigue load by incorporating the contact mechanics and a multi-axial fatigue critical plane parameter. This analysis shows that there is nonlinear damage accumulation during variable-amplitude fretting-fatigue load.