Long fatigue life critical crack lengths

• Published in: Fatigue & fracture of engineering materials & structures Vol. 33; no. 5; pp. 320 - 330
• Main Authors: PLUMTREE, A., UNTERMANN, N.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.05.2010; Blackwell; Wiley Subscription Services, Inc
• Subjects: Applied sciences; closure; Cracks; critical crack lengths; Exact sciences and technology; Fatigue; Fatigue life; fatigue threshold; long life fatigue; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metals. Metallurgy; strain distribution; Stress analysis; Fatigue life; Crack length; Mechanical properties; critical crack lengths; Strain distribution; Fatigue; Fatigue threshold; closure; long life fatigue; Fatigue crack

ABSTRACT A model based on surface strain redistribution and crack closure is presented for prediction of the endurance or fatigue limit stress by determining the threshold stress and critical length of short cracks that develop under microstructural control. The threshold stress first decreases with...