Calibrating a finite-strain phase-field model of fracture for bonded granular materials with uncertainty quantification
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Le résumé fourni par la source
To study the mechanical behavior of mock high explosives, an experimental and simulation program was developed to calibrate, with quantified uncertainty, a material model of the bonded granular material Idoxuridine and nitroplasticized Estane-5703. This paper reports on the efficacy of such a framework as a generalizable methodology for calibrating material models against experimental data with uncertainty quantification. Additionally, this paper studies the effect of two manufacturing temperatures and three initial granular configurations on the unconfined compressive behavior of the resulting bonded granular materials. In each of these cases, the same calibration framework was used; in that, hundreds of high-fidelity direct numerical simulations using a new, graphics processing unit-enabled, high-performance finite element method software, Ratel, were run to calibrate a finite-strain phase-field fracture model against experimental data. It was found that manufacturing temperature influenced the elastic response of the mock high explosives, with higher temperatures yielding a stiffer response. By contrast, it was found that the initial configuration of the grains had a negligible impact on the overall behavior of the mock high explosives though it remains possible that local damage accumulation within the specimens could be altered by the initial configurations. Overall, the calibration framework was successful at creating well-calibrated models, showing its usefulness as an engineering and scientific tool.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Calibrating a finite-strain phase-field model of fracture for bonded granular materials with uncertainty quantification
- Date Crossref
- 19/12/2025
- Éditeur
- AIP Publishing
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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University of Colorado Boulder Department of Civil pays non établi dans la noticeUniversité ou école supérieure
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University of Colorado System pays non établi dans la noticeUniversité ou école supérieure
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The University of Texas at Dallas pays non établi dans la noticeUniversité ou école supérieure
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Los Alamos National Laboratory Sigma Manufacturing Science Division pays non établi dans la noticeStructure de recherche
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Colorado School of Mines George S. Ansell Department of Metallurgical and Materials Engineering pays non établi dans la noticeUniversité ou école supérieure
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University of Texas at Dallas 3 Department of Mechanical Engineering pays non établi dans la noticeUniversité ou école supérieure
Department of Civil — University of Colorado Boulder, University of Colorado System et The University of Texas at Dallas, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.