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Numerical Modeling of Plastic Deformation of Unidirectionally Reinforced Composites

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Mechanics of Composite Materials Aims and scope

A technique for the numerical homogenization of plastic deformation of unidirectionally reinforced composites is developed. A modification of Prandtl–Reuss theory that takes into account the influence of the first invariant of stress tensor is used as governing relations for an equivalent orthotropic material. The isotropic hardening is described by a function depending on the work of plastic deformation. A micromechanical analysis is performed on a representative cell by the finite-element method for the general case of triaxial stress state. Deformation diagrams and yield surfaces for carbon fiber plastics with a square packaging scheme of fibers are given.

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Authors and Affiliations

  1. National Technical University “Kharkov Polytechnical Institute,”, Kharkov, Ukraine

    G. I. L’vov & O. A. Kostromitskaya

Authors
  1. G. I. L’vov
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  2. O. A. Kostromitskaya
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Correspondence to G. I. L’vov.

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Translated from Mekhanika Kompozitnykh Materialov, Vol. 56, No. 1, pp. 3-26, January-February, 2020.

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L’vov, G.I., Kostromitskaya, O.A. Numerical Modeling of Plastic Deformation of Unidirectionally Reinforced Composites. Mech Compos Mater 56, 1–14 (2020). https://doi.org/10.1007/s11029-020-09856-8

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  • DOI: https://doi.org/10.1007/s11029-020-09856-8

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