The Effect of Stress Ratio During Crack Propagation and Fatigue for 2024-T3 and 7075-T6 Aluminum

K Walker

doi:10.1520/STP32032S

SYMPOSIA PAPER Published: 01 January 1970

STP32032S

The Effect of Stress Ratio During Crack Propagation and Fatigue for 2024-T3 and 7075-T6 Aluminum

Source

An effective stress, σ¯ = σ_max^1-mΔσ^m where m is assumed to be a material constant, is shown to predict the effect of stress ratio on crack propagation and fatigue life for two aluminum alloys. Simple approximations of notch stress and strain using Neuber's notch rule are introduced to extend the predictions of stress-ratio effects to inelastic notch behavior.

Author Information

Walker, K

Physical Sciences Laboratory, Lockheed-California Company, Burbank, Calif.

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Details

Developed by Committee: E08

Pages: 1–14

DOI: 10.1520/STP32032S

ISBN-EB: 978-0-8031-4584-9

ISBN-13: 978-0-8031-0032-9

The Effect of Stress Ratio During Crack Propagation and Fatigue for 2024-T3 and 7075-T6 Aluminum

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