Conventional engineering methods oftentimes have challenges in the quantification of crack nucleation processes from manufacturing defects that are relevant for engineering component lifing. In this work, we present peridynamic simulation framework for the description of the crack nucleation process from cluster of non-metallic inclusions in aluminum alloys. Our non-local simulation framework characterizes crack nucleation process as multiple micro-crack nucleation events from individual inclusions, and eventually one micro-crack dominates. We define individual stages of the crack nucleation process, i.e., nucleation, micro-crack, technical, and crack initiation, that allow a quantification and meta model development of both the individual stages and the entire crack nucleation process.
Rezaul Karim, Mohammad, et al. "Crack nucleation from non-metallic inclusions in aluminum alloys described by peridynamics simulations." International Journal of Fatigue, vol. 153, Aug. 2021. https://doi.org/10.1016/j.ijfatigue.2021.106475
Rezaul Karim, Mohammad, Kadau, Kai, Narasimhachary, Santosh, et al., "Crack nucleation from non-metallic inclusions in aluminum alloys described by peridynamics simulations," International Journal of Fatigue 153 (2021), https://doi.org/10.1016/j.ijfatigue.2021.106475
@article{osti_1814791,
author = {Rezaul Karim, Mohammad and Kadau, Kai and Narasimhachary, Santosh and Radaelli, Francesco and Amann, Christian and Dayal, Kaushik and Silling, Stewart and Germann, Timothy C.},
title = {Crack nucleation from non-metallic inclusions in aluminum alloys described by peridynamics simulations},
annote = {Conventional engineering methods oftentimes have challenges in the quantification of crack nucleation processes from manufacturing defects that are relevant for engineering component lifing. In this work, we present peridynamic simulation framework for the description of the crack nucleation process from cluster of non-metallic inclusions in aluminum alloys. Our non-local simulation framework characterizes crack nucleation process as multiple micro-crack nucleation events from individual inclusions, and eventually one micro-crack dominates. We define individual stages of the crack nucleation process, i.e., nucleation, micro-crack, technical, and crack initiation, that allow a quantification and meta model development of both the individual stages and the entire crack nucleation process.},
doi = {10.1016/j.ijfatigue.2021.106475},
url = {https://www.osti.gov/biblio/1814791},
journal = {International Journal of Fatigue},
issn = {ISSN 0142-1123},
volume = {153},
place = {United States},
publisher = {Elsevier},
year = {2021},
month = {08}}