Crack nucleation from non-metallic inclusions in aluminum alloys described by peridynamics simulations
Journal Article
·
· International Journal of Fatigue
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Siemens Energy, Inc., Charlotte, NC (United States)
- Siemens Corp., Charlotte, NC (United States)
- Siemens Energy Global GmbH & Co., Mülheim (Germany)
- Carnegie Mellon Univ., Pittsburgh, PA (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
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.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- US Army Research Office (ARO); US Department of the Navy, Office of Naval Research (ONR); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office
- Grant/Contract Number:
- 89233218CNA000001; NA0003525
- OSTI ID:
- 1814791
- Alternate ID(s):
- OSTI ID: 1814855
OSTI ID: 1882860
- Report Number(s):
- LA-UR--21-24259; SAND2022-0053J
- Journal Information:
- International Journal of Fatigue, Journal Name: International Journal of Fatigue Vol. 153; ISSN 0142-1123
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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