An extension of the phase field method to model interactions between interfacial damage and brittle fracture in elastoplastic composites
| Autor: | Pengfei Li, Christelle Combescure, Julien Yvonnet |
|---|---|
| Přispěvatelé: | Laboratoire Modélisation et Simulation Multi-Echelle (MSME), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel, Laboratoire de Modélisation et Simulation Multi Echelle (MSME), Université Paris-Est Marne-la-Vallée (UPEM)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Université Paris-Est Marne-la-Vallée (UPEM) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Field (physics) Composite number Probability density function 02 engineering and technology Phase field method Physics::Geophysics Matrix (mathematics) 0203 mechanical engineering Phase (matter) General Materials Science Elastoplastic microstructures Composite material Civil and Structural Engineering Crack propagation Mechanical Engineering Interfacial damage Fracture mechanics [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Physics::Classical Physics 020303 mechanical engineering & transports Fracture Mechanics of Materials Fracture (geology) 0210 nano-technology |
| Zdroj: | International Journal of Mechanical Sciences International Journal of Mechanical Sciences, Elsevier, 2020, 179, pp.105633. ⟨10.1016/j.ijmecsci.2020.105633⟩ |
| ISSN: | 0020-7403 |
| DOI: | 10.1016/j.ijmecsci.2020.105633⟩ |
| Popis: | International audience; An extension of the phase field method to model interfacial damage in elastoplastic composites is proposed. In the matrix, an elastoplastic phase field is employed to model the fracture process. To introduce interfacial damage between inclusions and the matrix, a strain density function depending on the jump due to decohesion is added to the total energy. Smooth indicator functions are used to maintain the regularized character of the approximation. They weight the different terms in the energy with respect to the vicinity of interfaces. Then, the different problems (mechanical and phase field problems) are derived and an algorithmic procedure is described. Numerical examples show the capabilities of the method to handle initiation, propagation and interactions between both elastoplastic fracture and interfacial cracks in complex elastoplastic composite microstructures. It is also shown that the solutions are convergent with respect to the mesh refinement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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