Implementation of modified Wheeler model in peridynamic fatigue model to predict effects of overload and underload on fatigue crack growth rate

Tien Nguyen, Cong and Oterkus, Selda and Oterkus, Erkan (2021) Implementation of modified Wheeler model in peridynamic fatigue model to predict effects of overload and underload on fatigue crack growth rate. Theoretical and Applied Fracture Mechanics, 116. 103115. ISSN 0167-8442 (https://doi.org/10.1016/j.tafmec.2021.103115)

[thumbnail of Tien-Cong-etal-TAFM-2021-Implementation-of-modified-Wheeler-model-in-peridynamic-fatigue-model-to-predict-effects]
Preview
 Text. Filename: Tien_Cong_etal_TAFM_2021_Implementation_of_modified_Wheeler_model_in_peridynamic_fatigue_model_to_predict_effects.pdf
Accepted Author Manuscript
License: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 logo
Download (2MB)| Preview

Abstract

This study presents a novel peridynamic model for the prediction of fatigue crack growth rate with the effects of overload and underload. The modified Wheeler models for underload, overload and overload-underload combinations are applied to peridynamic fatigue equations. The capability of the proposed peridynamic fatigue model is demonstrated by considering fatigue crack growth on a single edge-notch plate subjected to constant amplitude loadings with overloads, underloads, and overload/underload combinations. The accuracy of the proposed peridynamic fatigue model is verified by comparing the predicted fatigue crack growth with experimental results.

CORE (COnnecting REpositories)