Mathematical effective equation of unloading of porous metal composite materials

I. K. Arkhipov ; V. I. Abramova ; S. N. Kutepov ; A. E. Gvozdev ; O. V. Kuzovleva

Čebyševskij sbornik, Tome 22 (2021) no. 4, pp. 352-360.

Résumé

Aking into account the microplasticity in the vicinity of the pores, an effective discharge equation is obtained. The influence of porosity on the residual deformation under uniaxial tension of a sample of a porous metal composite is taken into account. The nonlinearity in the deformations of the discharge curve, which is caused by microplasticity, is established. Numerical calculations of the residual strain as a function of the initial stress and porosity are given.

Détail

Keywords: composite materials, matrix, microplastic zones, residual deformations, porosity.

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