A non-linear fatigue damage rule with an exponent based on a crack growth boundary condition

A non-linear fatigue damage rule with an exponent based on a crack growth boundary condition

For the life prediction of cyclic loaded specimens several damage accumulation theories exist. Some use a power law rule to convert the damage from one load level to another. The difference between these rules is the calculation of the exponent. In this article, a new exponent is proposed based on a...

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Veröffentlicht in:International journal of fatigue 1999-09, Vol.21 (8), p.761-767
Hauptverfasser: Franke, L., Dierkes, G.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Cumulative damage rules
Cumulative fatigue damage
Exact sciences and technology
Fatigue
Fatigue damage accumulation
Fatigue life prediction
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
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container_title International journal of fatigue
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creator Franke, L.
Dierkes, G.
description For the life prediction of cyclic loaded specimens several damage accumulation theories exist. Some use a power law rule to convert the damage from one load level to another. The difference between these rules is the calculation of the exponent. In this article, a new exponent is proposed based on a crack growth boundary condition. In order to improve life prediction accuracy, the variation of the crack growth speed with the load level is needed. The new theory is compared with experimental data from the literature and the results are presented. Further developments of the theory are proposed.
doi_str_mv 10.1016/S0142-1123(99)00045-6
format Article
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source Elsevier ScienceDirect Journals Complete
subjects Applied sciences
Cumulative damage rules
Cumulative fatigue damage
Exact sciences and technology
Fatigue
Fatigue damage accumulation
Fatigue life prediction
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
title A non-linear fatigue damage rule with an exponent based on a crack growth boundary condition
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