engleski

A Novel Approach in Multiscale Analysis of Quasi-Brittle Softening Materials

A second-order computational homogenization multiscale procedure for the damage analysis of quasi-brittle materials is presented. Higher-order continuum theory embedded into the two dimensional C1 continuity triangular finite element is employed at both micro- and macroscale. Microscale boundary value problem is based on solving the constitutive relations of gradient elasticity coupled with the isotropic damage law. Softening of an arbitrary heterogeneous material can be captured at the macroscale by the application of the second-order homogenization procedure on the damaged RVE. All the algorithms derived are implemented into the FE software ABAQUS via user subroutines.

Damage ; Softening ; C1 continuity finite element ; Mulitscale analysis ; Heterogeneous material

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