Abstract
The structural theory of short-term microdamage is generalized to a laminated composite with a microdamageable matrix and physically nonlinear reinforcement. The basis for the generalization is the stochastic elasticity equations of a laminated composite with a porous matrix. Microvolumes in the matrix material meet the Huber-Mises failure criterion. The damaged-microvolume balance equation for the matrix is derived. This equation and the equations relating macrostresses and macrostrains of a laminated composite with porous matrix and physically nonlinear reinforcement constitute a closed-form system of equations. This system describes the coupled processes of physically nonlinear deformation and microdamage occurring in different composite components. Algorithms for computing the microdamage-macrostrain relationships and deformation diagrams are developed. Uniaxial tension curves are plotted for a laminated composite with linearly hardening reinforcement
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Translated from Prikladnaya Mekhanika, Vol. 41, No. 11, pp. 47–56, November 2005.
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Khoroshun, L.P., Shikula, E.N. Deformation of a laminated composite with a physically nonlinear reinforcement and microdamageable matrix. Int Appl Mech 41, 1246–1253 (2005). https://doi.org/10.1007/s10778-006-0030-2
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DOI: https://doi.org/10.1007/s10778-006-0030-2