Numerical investigation of deformation and fracture in aluminum-alumina at the mesoscale

Ruslan Revovich Balokhonov, V. A. Romanova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mesovolume deformation of aluminum-alumina metal-matrix composite is investigated within the plane-strain formulation. Numerical solutions were performed in terms of Lagrangian variables using the finite-difference method. Hierarchical simulation presumes the use of different models for describing a mechanical behaviour of the plastic metal matrix and brittle ceramic inclusions: elasto-plastic formulation with the strain hardening and a cracking model using a fracture criterion of Huber type, respectively. The criterion takes into account the difference in critical values for different local stress-strain states: tension and compression. It has been shown that the composite mesovolume exhibits complex mechanical behaviour controlled by both shear band formation in the matrix and cracking of inclusions. The computational results have been analysed in details and compared with those experimentally observed.

Original languageEnglish
Title of host publication11th International Conference on Fracture 2005, ICF11
Pages4229-4231
Number of pages3
Volume6
Publication statusPublished - 2005
Externally publishedYes
Event11th International Conference on Fracture 2005, ICF11 - Turin, Italy
Duration: 20 Mar 200525 Mar 2005

Other

Other11th International Conference on Fracture 2005, ICF11
CountryItaly
CityTurin
Period20.3.0525.3.05

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Balokhonov, RR., & Romanova, V. A. (2005). Numerical investigation of deformation and fracture in aluminum-alumina at the mesoscale. In 11th International Conference on Fracture 2005, ICF11 (Vol. 6, pp. 4229-4231)