Investigating strain rate effects on elastoplastic fracture using a variable material properties-based peridynamic model
| Autor: | Mohammad-Hadi Safari-Naderi, Ahmad Ghasemi-Ghalebahman, Meisam Shakouri |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2025 |
| Předmět: | |
| Zdroj: | Results in Engineering, Vol 25, Iss , Pp 103739- (2025) |
| Druh dokumentu: | article |
| ISSN: | 2590-1230 25183680 |
| DOI: | 10.1016/j.rineng.2024.103739 |
| Popis: | This study addresses a significant limitation in bond-based peridynamic (BB-PD) models, which have traditionally struggled to predict failure in ductile materials. The research introduces a novel approach to enhance the capabilities of BB-PD by incorporating the Variable Material Property (VMP) method, enabling accurate modeling of elastoplastic behavior. By integrating the Johnson–Cook material model, which accounts for strain rate dependency, the proposed Variable Material Properties-Based Peridynamic (VMPB-PD) method effectively characterizes elastoplastic deformations. Numerical results, validated against experimental data from the literature, demonstrate the accuracy of the model, with a maximum prediction error of 8 %. This new method shows strong agreement with experimental findings, providing a significant improvement in simulating fracture behavior under varying loading rates. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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