Two engineering models for predicting the retardation of fatigue crack growth caused by mixed mode overload

Amir Reza Shahani; Iman Shakeri; Calvin David Rans

doi:10.1016/j.ijfatigue.2019.105378

Two engineering models for predicting the retardation of fatigue crack growth caused by mixed mode overload

Amir Reza Shahani^*, Iman Shakeri, Calvin David Rans

^*Corresponding author for this work

Structural Integrity & Composites

Research output: Contribution to journal › Article › Scientific › peer-review

18 Citations (Scopus)

Abstract

The effect of mixed mode overload on the retardation of pure mode I cyclic loading has been investigated experimentally on Al5083-H111. Two models for extension of the Wheeler retardation model are proposed in order to calculate retardation of fatigue crack growth subjected to mixed mode overload. The first proposed model can predict retardation with high precision. The second proposed model is a simplified form of the first one and does not contain more experimental constants than the Wheeler model so, it may be more practical. The application of the proposed models has been examined for another material and testing conditions.

Original language	English
Article number	105378
Number of pages	14
Journal	International Journal of Fatigue
Volume	132
DOIs	https://doi.org/10.1016/j.ijfatigue.2019.105378
Publication status	Published - 1 Mar 2020

Keywords

Fatigue crack growth
Mixed mode
Overload
Retardation
Variable amplitude loading

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abstract = "The effect of mixed mode overload on the retardation of pure mode I cyclic loading has been investigated experimentally on Al5083-H111. Two models for extension of the Wheeler retardation model are proposed in order to calculate retardation of fatigue crack growth subjected to mixed mode overload. The first proposed model can predict retardation with high precision. The second proposed model is a simplified form of the first one and does not contain more experimental constants than the Wheeler model so, it may be more practical. The application of the proposed models has been examined for another material and testing conditions.",

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author = "Shahani, {Amir Reza} and Iman Shakeri and Rans, {Calvin David}",

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AU - Rans, Calvin David

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Y1 - 2020/3/1

N2 - The effect of mixed mode overload on the retardation of pure mode I cyclic loading has been investigated experimentally on Al5083-H111. Two models for extension of the Wheeler retardation model are proposed in order to calculate retardation of fatigue crack growth subjected to mixed mode overload. The first proposed model can predict retardation with high precision. The second proposed model is a simplified form of the first one and does not contain more experimental constants than the Wheeler model so, it may be more practical. The application of the proposed models has been examined for another material and testing conditions.

AB - The effect of mixed mode overload on the retardation of pure mode I cyclic loading has been investigated experimentally on Al5083-H111. Two models for extension of the Wheeler retardation model are proposed in order to calculate retardation of fatigue crack growth subjected to mixed mode overload. The first proposed model can predict retardation with high precision. The second proposed model is a simplified form of the first one and does not contain more experimental constants than the Wheeler model so, it may be more practical. The application of the proposed models has been examined for another material and testing conditions.

KW - Fatigue crack growth

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KW - Retardation

KW - Variable amplitude loading

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JO - International Journal of Fatigue

JF - International Journal of Fatigue

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Two engineering models for predicting the retardation of fatigue crack growth caused by mixed mode overload

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Keywords

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