<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This work presents an analysis of the effect of ball indentation on fatigue crack growth. The main objective is to assess the effectiveness of indentation, particularly its influence on the J-integral, as a fracture criterion governing fracture toughness. Using the finite element method in Abaqus 6.14, we analyzed the residual stresses induced by indentation at different positions along the predicted line of crack propagation and calculated the J-integral. The results highlight that indentation at the crack tip position significantly reduces the J-integral compared to non-indented structures, demonstrating its potential to extend the lifespan of cracked components by delaying crack propagation. The findings underscore the practical application of ball indentation as a viable technique to retard crack growth, contributing to the longevity of cracked components and, consequently, structural integrity. This analysis revealed a crack propagation retardation gain of up to 56%.</p>
</abstract>

This work presents an analysis of the effect of ball indentation on fatigue crack growth. The main objective is to assess the effectiveness of indentation, particularly its influence on the J-integral, as a fracture criterion governing fracture toughness. Using the finite element method in Abaqus 6.14, we analyzed the residual stresses induced by indentation at different positions along the predicted line of crack propagation and calculated the J-integral. The results highlight that indentation at the crack tip position significantly reduces the J-integral compared to non-indented structures, demonstrating its potential to extend the lifespan of cracked components by delaying crack propagation. The findings underscore the practical application of ball indentation as a viable technique to retard crack growth, contributing to the longevity of cracked components and, consequently, structural integrity. This analysis revealed a crack propagation retardation gain of up to 56%.

Numerical Investigation of Indentation-Induced Residual Stresses and their Effect on J-Integral and Crack Propagation

Laboratory LPQ3M, BP763,University of Mascara

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This work presents an analysis of the effect of ball indentation on fatigue crack growth. The main objective is to assess the effectiveness of indentation,...

Numerical Investigation of Indentation-Induced Residual Stresses and their Effect on J-Integral and Crack Propagation

Data publikacji: 29 cze 2024

Zakres stron: 21 - 34

Otrzymano: 13 gru 2023

Przyjęty: 09 mar 2024

DOI: https://doi.org/10.2478/adms-2024-0010

Słowa kluczowe
Residual stress, FEM, Indentation, J-integral, Crack growth

© 2024 Abdelghani Baltach et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Numerical Investigation of Indentation-Induced Residual Stresses and their Effect on J-Integral and Crack Propagation

Data publikacji: 29 cze 2024

Zakres stron: 21 - 34

Otrzymano: 13 gru 2023

Przyjęty: 09 mar 2024

DOI: https://doi.org/10.2478/adms-2024-0010

Słowa kluczoweResidual stress, FEM, Indentation, J-integral, Crack growth

© 2024 Abdelghani Baltach et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Słowa kluczowe
Residual stress, FEM, Indentation, J-integral, Crack growth