A structural theory of the coupled processes of deformation and short-term damage of unidirectional fibrous composites with physically nonlinear components whose stress–strain curves have a descending section is developed. The damage process is modeled as the collapse of dispersed microvolumes followed by the formation of quasispherical micropores. A strain-based failure criterion formulated for the second invariant of the deviatoric macrostrain tensor is used as a condition for the short-term damage of a microvolume of the material. The effect of the fiber volume fraction on the deformation and damage of a unidirectional fibrous composite is analyzed
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Translated from Prikladnaya Mekhanika, Vol. 52, No. 3, pp. 71–82, May–June, 2016.
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Khoroshun, L.P. Deformation and Short-Term Damage of a Physically Nonlinear Unidirectional Fibrous Composite. Int Appl Mech 52, 272–281 (2016). https://doi.org/10.1007/s10778-016-0750-x
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DOI: https://doi.org/10.1007/s10778-016-0750-x