Publication detail

Adaptive technique for discrete models of fracture

ELIÁŠ, J.

Original Title

Adaptive technique for discrete models of fracture

Type

journal article in Web of Science

Language

English

Original Abstract

Static discrete models are advantageously used for the simulation of fracture in quasibrittle heterogeneous materials. In order to correctly capture strain localization during the fracture process, it is often necessary to represent material heterogeneity in the model directly via its discrete geometry. Depending on the specimen size and the size of the heterogeneities, these simulations are typically extremely computationally demanding. The contribution aims to reduce this computational cost via the implementation of adaptivity in the construction of the discrete model geometry. The simulation starts with coarse discretization, which provides correct elastic behavior and is then adaptively refined during the simulation in regions that suffer high stresses that induce cracking and strain localization. The technique is applied in deterministic and probabilistic simulations and demonstrated on several examples.

Keywords

Discrete model, Random geometry, Statics, Adaptivity, Discretization, Concrete

Authors

ELIÁŠ, J.

Released

9. 9. 2016

ISBN

0020-7683

Periodical

International Journal of Solids and Structures

Year of study

2016

Number

100-101

State

United Kingdom of Great Britain and Northern Ireland

Pages from

376

Pages to

387

Pages count

12

BibTex

@article{BUT133228,
  author="Jan {Eliáš}",
  title="Adaptive technique for discrete models of fracture",
  journal="International Journal of Solids and  Structures",
  year="2016",
  volume="2016",
  number="100-101",
  pages="376--387",
  doi="10.1016/j.ijsolstr.2016.09.008",
  issn="0020-7683"
}