Fatigue Cracking Analysis by Coupled 3D Peridynamics and 1D High Order Refined Elements
Qiang ZHANG, Alfonso PAGANI, Xiang LIU, Wei ZHOU, Jiahui SHEN
Abstract. Previous studies have demonstrated that coupling three-dimensional Peridynamics (PD) with one-dimensional high-order refined elements via the Lagrange multipliers method ensures physical consistency at the PD–FE interface [1]. This coupling strategy has also been applied to quasi-static crack propagation analyses of brittle materials [2]. Building upon this framework, the present work extends the approach by incorporating a peridynamic fatigue model, providing an efficient framework for fatigue crack analysis, especially in three dimensional cases [3]. The accuracy of the proposed model has been verified by reproducing the S–N and Paris curves of the 7075–T651 aluminum alloy. It demonstrates a promising method for fatigue crack analysis in aeronautical structures.
Keywords
Carrera Unified Formulation, Higher-Order Beam Theories, Peridynamic Fatigue Model
Published online 7/20/2026, 5 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Qiang ZHANG, Alfonso PAGANI, Xiang LIU, Wei ZHOU, Jiahui SHEN, Fatigue Cracking Analysis by Coupled 3D Peridynamics and 1D High Order Refined Elements, Materials Research Proceedings, Vol. 69, pp 1353-1357, 2026
DOI: https://doi.org/10.21741/9781644904251-235
The article was published as article 235 of the book CEAS – AIDAA Conference 2025
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
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