A Theory for Mathematical Framework of Fatigue Damage on S-N Plane

Hoda Eskandari; Ho Sung Kim

doi:10.4028/www.scientific.net/KEM.627.117

Paper Titles

Numerical Study of a Plate with a Pre-Cracked Circular Notch
p.101

Numerical Simulation and Experimental Investigation of Damage Behaviour on Al6061 Laser Welded Joints
p.105

Flexural Property and Mode I Interlaminar Fracture Toughness of Plain Woven Carbon Fiber Reinforced Plastics after Water Absorption and Freezing
p.109

Effect of Acid Treatment on Mechanical Performance of Polyvinyl Alcohol/Halloysite Nanocomposites
p.113

A Theory for Mathematical Framework of Fatigue Damage on S-N Plane
p.117

Topology Optimization of Geometrically Non-Linear Structures Using Iso-XFEM Method
p.121

Fracture Mechanisms in High-Cycle Fatigue of Selective Laser Melted Ti-6Al-4V
p.125

Investigation of Residual Stresses in Selective Laser Melting
p.129

Experimental Evaluation of Fatigue Resistance of ETG^®88 and C45+C Steels Considering Stress Concentrators and Scale Factor
p.133

HomeKey Engineering MaterialsKey Engineering Materials Vol. 627A Theory for Mathematical Framework of Fatigue...

A Theory for Mathematical Framework of Fatigue Damage on S-N Plane

Abstract:

A theory for mathematical framework is developed with axioms for fatigue damage, quantification and relativity concept, boundary conditions, and compatibility, allowing us to evaluate the validity of candidate damage equations/quantities on S-N plane for prediction of fatigue life. Manifestation points for accumulated damage were defined for boundary conditions by differentiating between damage accumulated before failure, and failure caused by damage at quantised fatigue loading cycles. A selected damage equation leading to a theoretical S-N curve was validated as an example.