Constitutive modelling of the densification process in silica glass under hydrostatic compression
| Autor: | Jean-Christophe Sanglebœuf, S. Gicquel, P. Pilvin, J. X. Meng, G. Le Quilliec, Jean-Pierre Guin, Ludovic Charleux, Tanguy Rouxel, Vincent Keryvin |
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| Přispěvatelé: | Laboratoire d'Ingénierie des Matériaux de Bretagne (LIMATB), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université de Brest (UBO), LAboratoire de Recherche en Mécanique Appliquée (LARMAUR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SYstèmes et Matériaux pour la MEcatronique (SYMME), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Financial support was provided by the Brittany region (PhD grant, ARED 5382 CARAMEL), the French Ministry for Higher Education and Research (PhD grant) and the European University of Brittany (EPT COMPDYNVERRE). They are gratefully acknowledged., Université de Bretagne Sud (UBS)-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université de Brest (UBO)-Université de Brest (UBO), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Polymers and Plastics Silica glass Constitutive equation Thermodynamics FOS: Physical sciences 02 engineering and technology 01 natural sciences Moduli law.invention Very high pressure law 0103 physical sciences Densification Experimental work ComputingMilieux_MISCELLANEOUS 010302 applied physics Condensed Matter - Materials Science Continuum mechanics Metals and Alloys Modeling Materials Science (cond-mat.mtrl-sci) 021001 nanoscience & nanotechnology Electronic Optical and Magnetic Materials Ceramics and Composites [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Amorphous silica Hydrostatic equilibrium 0210 nano-technology |
| Zdroj: | Acta Materialia Acta Materialia, 2014, 62, pp.250-257. ⟨10.1016/j.actamat.2013.07.067⟩ Acta Materialia, Elsevier, 2014, 62, pp.250-257. ⟨10.1016/j.actamat.2013.07.067⟩ |
| ISSN: | 1359-6454 |
| DOI: | 10.48550/arxiv.1303.6693 |
| Popis: | The mechanical response of amorphous silica (or silica glass) under hydrostatic compression for very high pressures up to 25 GPa is modelled via an elastic–plastic constitutive equation (continuum mechanics framework). The material parameters appearing in the theory have been estimated from the ex situ experimental data of Rouxel et al. [Rouxel T, Ji H, Guin JP, Augereau F, Ruffle B. J Appl Phys 2010;107(9):094903]. The model is shown to capture the major features of the pressure–volume response changes from the in situ experimental work of Sato and Funamori [Sato T, Funamori N. Phys Rev Lett 2008;101:255502] and Wakabayashi et al. [Wakabayashi D, Funamori N, Sato T, Taniguchi T. Phys Rev B 2011;84(14):144103]. In particular, the saturation of densification, the increase in elasticity parameters (bulk, shear and Young’s moduli) and Poisson’s ratio are found to be key parameters of the model. |
| Databáze: | OpenAIRE |
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