Effects of specimen thickness, hardening and crack closure for the plastic strip model

Wang, Jian; Gao, Jia-Ming; Guo, Wei; Shen, Yuhao

doi:10.1016/s0167-8442(98)00015-9

Cited by 14 publications

(2 citation statements)

References 15 publications

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“…7) can be interpreted as an approach to model strain hardening of the material. Literature evidence provides an alternative means of accounting for the strain hardening effect, both in the SY model 19,20 and in the Dugdale model. 21,22 In recent publications of Codrington and Kotousov 23,24 a new approach to model the plasticity-induced crack closure within the SY model is proposed, which utilizes the so-called distributed dislocation technique.…”

Section: O N S T R a I N T F A C T O R Smentioning

confidence: 99%

Fatigue crack growth prediction models for metallic materials Part II: Strip yield model – choices and decisions

Machniewicz

2012

Fatigue Fract Eng Mat Struct

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Deterministic models developed to predict fatigue crack growth in metallic materials are considered with special emphasis on approaches suitable for variable amplitude load histories. Part I gave a concise review of available models and their assessment based on reported in the literature comparisons between predicted and observed results. It was concluded that the so‐called strip yield model based on the plasticity‐induced crack closure mechanism is a most versatile predictive tool convenient to use in the case of mode I crack growth under arbitrary variable amplitude loading. Part II of the paper is focused on the strip yield model and its predictive capabilities. Implementations of this type prediction approach reported in the literature are reviewed. It is shown that decisions regarding the constraint factor conception, a choice of the crack driving force parameter, the crack growth rate description and various numerical details can have a profound effect on the model results and the prediction quality.

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