Nguyen, Vinh Phu  ORCID: https://orcid.org/0000-0003-1212-8311, Stroeven, Martijn and Sluys, Lambertus Johannes
2012.
An enhanced continuous-discontinuous multiscale method for modeling mode-I cohesive failure in random heterogeneous quasi-brittle materials.
Engineering Fracture Mechanics
79
, pp. 78-102.
10.1016/j.engfracmech.2011.10.005
|
Abstract
In this manuscript we present an extension of the computational homogenization scheme for cohesive crack modeling of heterogeneous quasi-brittle materials which has recently been proposed by the authors. The proposed continuous–discontinuous multiscale method is a combination of the standard bulk computational homogenization theory and the recently developed discontinuous homogenization scheme to model the transition of microscopic diffusive damage to macro-cracks for tensile cracking problems. A new evolutionary boundary condition for the microscopic samples is presented. Numerical examples including verification against a direct numerical simulation and crack propagation simulations are given to demonstrate the capabilities of the method. The proposed homogenization scheme allows to define a representative volume for random heterogeneous quasi-brittle materials that show strain localization.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Uncontrolled Keywords: | Fully coupled multiscale; Computational homogenization; Multiscale cohesive law; Representative volume element (RVE); Random heterogeneous quasi-brittle materials |
| Publisher: | Elsevier |
| ISSN: | 0013-7944 |
| Last Modified: | 24 Oct 2022 10:46 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/45800 |
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