Effect of Stress Ratio on the Cumulative Value of Energy Dissipation

Bogdan Ligaj

doi:10.4028/www.scientific.net/KEM.598.125

Paper Titles

Specifics Deformation Aluminium Alloy D16 in Conditions Additional Load Impulse
p.99

Fatigue Behaviour of S235JR Steel after Surface Frictional-Mechanical Treatment in Corrosive Environment
p.105

Effect of Critical Void Volume Fraction f_F on Results of Ductile Fracture Simulation for S235JR Steel under Multi-Axial Stress States
p.113

Application of Fictitious Radius to Fatigue Life Calculations of Bending Notched Specimens
p.119

Effect of Stress Ratio on the Cumulative Value of Energy Dissipation
p.125

Impact of the Strain Rate during Tension Test on 46Cr1 Steel Temperature Change
p.133

Improving Fatigue Life of Riveted Joints by Rivet Hole Sizing
p.141

Energy Fatigue Characteristic of C45 Steel Subjected to Cyclic Bending
p.147

About Fatigue Tests End Criterion in Elevated Temperatures
p.153

HomeKey Engineering MaterialsKey Engineering Materials Vol. 598Effect of Stress Ratio on the Cumulative Value of...

Effect of Stress Ratio on the Cumulative Value of Energy Dissipation

Abstract:

Aim of this work is to analyze the stress-strain loops recorded during the study c45 steel under programmable stress for constant amplitude loads of the stress ratio: R = -2.0, R = -1.0 and R = -0.5. The results presented in the paper of cumulative plastic strain energy show that the nature of the relationship ΣΔW_pl-N for loads of different values of stress ratio R is similar. Course of changes of relationship ΣΔW_pl-N for loads with R = -0.5 and R = -2.0 shows a similar nature and range of changes in the value ΣΔW_pl, despite significantly different parameters of load.

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Periodical:

Key Engineering Materials (Volume 598)

Pages:

125-132

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.598.125

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Online since:

January 2014

Authors:

Bogdan Ligaj

Keywords:

C45 Steel, Stress-Strain Loops, Wöhler Fatigue Diagram

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