English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Stress and strain fields in a two-dimensional pixelwise disordered system arecomputed by a Fast Fourier Transform method. The system, a model for a ductiledamaged medium, consists of an elastic-perfectly matrix containing void pixels.Its behavior is investigated under equibiaxial or shear loading. We monitor theevolution with loading of plastically deformed zones, and we exhibit anucleation / growth / coalescence scenario of the latter. Identification ofplastic ``clusters'' is eased by using a discrete Green function implementingequilibrium and continuity at the level of one pixel. Observed morphologicalregimes are put into correspondence with some features of the macroscopicstress / strain curves.

Fast Fourier Transform computations and build-up of plastic deformation in 2D, elastic-perfectly plastic, pixelwise disordered porous media