A continuum model for concrete informed by mesoscale studies
| العنوان: | A continuum model for concrete informed by mesoscale studies |
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| المؤلفون: | Eric B. Herbold, Tarabay Antoun, Souheil Ezzedine, Oleg Vorobiev |
| المصدر: | International Journal of Damage Mechanics. 27:1451-1481 |
| بيانات النشر: | SAGE Publications, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Continuum (measurement), business.industry, Mechanical Engineering, Computational Mechanics, Mesoscale meteorology, Experimental data, Single element, Model parameters, 02 engineering and technology, Structural engineering, Penetration (firestop), Mechanics, 01 natural sciences, Two stages, 010101 applied mathematics, 020303 mechanical engineering & transports, 0203 mechanical engineering, Mechanics of Materials, General Materials Science, 0101 mathematics, Penetration depth, business, Geology |
| الوصف: | The paper describes a novel computational approach to refine continuum models for penetration calculations which involves two stages. At the first stage, a trial continuum model is used to model penetration into a concrete target. Model parameters are chosen to match experimental data on penetration depth. Deformation histories are recorded at few locations in the target around the penetrator. In the second stage, these histories are applied to the boundaries of a representative volume comparable to the element size in large scale penetration simulation. Discrete-continuum approach is used to model the deformation and failure of the material within the representative volume. The same deformation histories are applied to a single element which uses the model to be improved. Continuum model may include multiple parameters or functions which cannot be easily found using experimental data. We propose using mesoscale response to constrain such parameters and functions. Such tuning of the continuum model using typical deformation histories experienced by the target material during the penetration allows us to minimize the parameter space and build better models for penetration problems which are based on physics of penetration rather than intuition and ad hoc assumptions. |
| تدمد: | 1530-7921 1056-7895 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::4c0956d6eb57b2cd992e43bf34264d25 https://doi.org/10.1177/1056789517730884 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........4c0956d6eb57b2cd992e43bf34264d25 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15307921 10567895 |
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