Publication result detail

Scale bridging in computational modelling of quasi-brittle fracture of cementitious composites

VALA, J.; KOZÁK, V.; JEDLIČKA, M.

Original Title

Scale bridging in computational modelling of quasi-brittle fracture of cementitious composites

English Title

Scale bridging in computational modelling of quasi-brittle fracture of cementitious composites

Type

Paper in proceedings (conference paper)

Original Abstract

Computational prediction damage in cementitious composites, as steel fibre reinforced ones, under mechanical, thermal, etc. loads, manifested as creation of micro-fractured zones, followed by poten-tial initiation and evolution of macroscopic cracks, is a rather delicate matter, due to the necessity of bridging between micro- and macro-scales. This short paper presents a relatively simple approach, based on the nonlocal viscoelasticity model, coupled with cohesive crack analysis, using extended finite element techniques. Such model admits proper verification of its existence and convergence results, from the physical and mathematical formulation up to software implementation of relevant algorithms. Its practical applicability is documented on a sequence of representative computational examples.

English abstract

Computational prediction damage in cementitious composites, as steel fibre reinforced ones, under mechanical, thermal, etc. loads, manifested as creation of micro-fractured zones, followed by poten-tial initiation and evolution of macroscopic cracks, is a rather delicate matter, due to the necessity of bridging between micro- and macro-scales. This short paper presents a relatively simple approach, based on the nonlocal viscoelasticity model, coupled with cohesive crack analysis, using extended finite element techniques. Such model admits proper verification of its existence and convergence results, from the physical and mathematical formulation up to software implementation of relevant algorithms. Its practical applicability is documented on a sequence of representative computational examples.

Keywords

cementitious composites; quasi-brittle fracture; macro- and micro-cracking; scale bridging; nonlocal elasticity; extended finite element techniques

Key words in English

cementitious composites; quasi-brittle fracture; macro- and micro-cracking; scale bridging; nonlocal elasticity; extended finite element techniques

Authors

VALA, J.; KOZÁK, V.; JEDLIČKA, M.

RIV year

2021

Released

31.12.2021

Publisher

TransTech

Location

Zurich

Book

ICBM 2020 Proceedings

ISBN

1012-0394

Periodical

Solid State Phenomena

Volume

325

State

Swiss Confederation

Pages from

56

Pages to

64

Pages count

6

URL

https://www.researchgate.net/publication/355298649_Scale_Bridging_in_Computational_Modelling_of_Quasi-Brittle_Fracture_of_Cementitious_Composites

BibTex

@inproceedings{BUT167895,
  author="Jiří {Vala} and Vladislav {Kozák} and Michal {Jedlička}",
  title="Scale bridging in computational modelling of quasi-brittle fracture of cementitious composites  
",
  booktitle="ICBM 2020 Proceedings",
  year="2021",
  journal="Solid State Phenomena",
  volume="325",
  pages="56--64",
  publisher="TransTech",
  address="Zurich",
  doi="10.4028/www.scientific.net/SSP.325.59",
  issn="1012-0394",
  url="https://www.researchgate.net/publication/355298649_Scale_Bridging_in_Computational_Modelling_of_Quasi-Brittle_Fracture_of_Cementitious_Composites"
}