Monitoring damage evolution of ceramic matrix composites during tensile tests using electrical resistivity: Crack density-based electromechanical model
| Autor: | Gérald Camus, J.P. Goulmy, Francis Rebillat |
|---|---|
| Přispěvatelé: | Laboratoire des Composites Thermostructuraux (LCTS), Centre National de la Recherche Scientifique (CNRS)-Snecma-SAFRAN group-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut de Chimie du CNRS (INC)-Snecma-SAFRAN group-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Damage monitoring Materials science Tension (physics) Electrical resistivity Acoustic emission spectra 02 engineering and technology Tensile tests 021001 nanoscience & nanotechnology Ceramic matrix composite 01 natural sciences Density based Acoustic emission Electrical resistance and conductance Electrical resistivity and conductivity [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] 0103 physical sciences Ultimate tensile strength Materials Chemistry Ceramics and Composites Monitoring methods Composite material 0210 nano-technology Ceramic matrix composites (CMCs) |
| Zdroj: | Journal of the European Ceramic Society Journal of the European Ceramic Society, Elsevier, 2021, 41 (1), pp.121-129. ⟨10.1016/j.jeurceramsoc.2020.07.065⟩ Journal of the European Ceramic Society, 2021, 41 (1), pp.121-129. ⟨10.1016/j.jeurceramsoc.2020.07.065⟩ |
| ISSN: | 0955-2219 |
| DOI: | 10.1016/j.jeurceramsoc.2020.07.065 |
| Popis: | International audience; In order to further develop and understand the data provided by electrical resistance measurements, three ceramic matrix composites (CMCs) were characterized in tension. The observed changes of the electrical resistance were compared to the acoustic emission spectra, another commonly used damage monitoring method, as well as the classical interposed unloading/reloading cycles. A model was then proposed in order to predict the evolution of the resistance as a function of the damage state of the three composites. The proposed model provides accurate results for the three materials which, although they all belong to the CMC family, display different mechanical and physical behaviors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect