Computational approach proposition for further processing of the fatigue curve

Abstract

The goal of our paper is to present the numerical computational tools application for the hysteretic curve identification using Karray-Bouc and Ramberg-Osgood models. The Karray-Bouc model parameters will be determined from Ramberg-Osgood model and Manson-Coffin curve parameters. Using special Matlab’s procedures we can calculate dissipative (hysteretic) energy density per cycle and express Manson-Coffin curve in energy version.

Keywords

• Manson-Coffin curve
• Energy fatigue curve
• Karray-Bouc hysteretic model
• Ramberg-Osgood model