Material and structural behaviour of PMMA from low temperatures to over the glass transition: Quasi-static and dynamic loading
| Autor: | D. Garcia-Gonzalez, Amine Bendarma, Slim Bahi, Alexis Rusinek, Maciej Klósak, Richard Bernier |
|---|---|
| Přispěvatelé: | Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Comunidad de Madrid, Universidad Carlos III de Madrid [Madrid] (UC3M), Laboratoire d'Innovation Durable et de Recherche Appliquée (LIDRA), Ecole Polytechnique d'Agadir |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers and Plastics Organic Chemistry Constitutive equation Perforation (oil well) [PHYS.MECA.GEME]Physics [physics]/Mechanics [physics]/Mechanical engineering [physics.class-ph] 02 engineering and technology Strain rate 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences PMMA Constitutive modelling 0104 chemical sciences Deformation mechanism Dynamic loading Composite material Deformation (engineering) 0210 nano-technology Glass transition Polymer Quasistatic process Impact behaviour ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Polymer Testing Polymer Testing, Elsevier, 2020, 81, pp.106263. ⟨10.1016/j.polymertesting.2019.106263⟩ e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid instname |
| ISSN: | 0142-9418 |
| DOI: | 10.1016/j.polymertesting.2019.106263⟩ |
| Popis: | This work aims at characterizing the mechanical behaviour of polymethyl-methacrylate (PMMA) under high velocity impact conditions over a wide range of testing temperatures. To this end, the mechanical response at uniaxial compression is studied for both quasi-static and dynamic conditions covering testing temperatures below, at and above glass transition. A pseudo-brittle to ductile transition in the failure of PMMA is observed at a threshold that depends on testing temperature and strain rate. This analysis allows for the interpretation of the perforation impact tests and to explain the principal deformation and failure mechanisms. To complete the study, the Richeton model to predict yielding is revisited. Finally, we provide a new constitutive model for finite deformations to further identify the deformation mechanisms governing the mechanical behaviour of PMMA and the influence of temperature and strain rate on them. D. Garcia-Gonzalez acknowledges support from the Talent Attraction grant (CM 2018 - 2018-T2/IND-9992) from the Comunidad de Madrid. |
| Databáze: | OpenAIRE |
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