On the shock waves structure in anisotropic carbon fiber-epoxy composites with micro- and macrofractures | Mekhanika | kompozitsionnykh | materialov i konstruktsii
> Volume 18 > №3 / 2012 / Pages: 400-413

On the shock waves structure in anisotropic carbon fiber-epoxy composites with micro- and macrofractures

Abstract:

A modification of Grьneisen’s equation of state describing an analytical relation between the Hugoniot states and other thermodynamic states for carbon fiber-epoxy composites with micro- and macro- fractures under shock wave loading is proposed. Using nonlinear anisotropic constitutive equations for damageable solids and generalized decomposition of a stress tensor, the three-wave structure of shock waves, consisting of nonlinear anisotropic, transition (failure-wave) and isotropic elastic parts, is examined in different directions for selected carbon fiber-epoxy composite. A numerical calculation shows that Hugoniot stress levels well agreed with the experimental data for selected carbon fiber-epoxy composite.

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