Detail publikačního výsledku

On a computational approach to micro- and macro-modelling of damage in brittle and quasi-brittle materials

VALA, J.; KOZÁK, V.; JAROŠOVÁ, P.

Originální název

On a computational approach to micro- and macro-modelling of damage in brittle and quasi-brittle materials

Anglický název

On a computational approach to micro- and macro-modelling of damage in brittle and quasi-brittle materials

Druh

Článek Scopus

Originální abstrakt

Computational modelling of damage in brittle and quasi-brittle materials needs some coupling between micro- and macroscopic crack initiation and evolution, up to their non-negligible softening behaviour. Most such ap-proaches contain ad hoc evaluations, with some physical and engineering motivations, namely those connected with massive application of steelfibre-reinforced concrete and similar composites in building projects, but without any propermathematical existence and convergence analysis for the time development of damage. This paper presents a possibility of such deterministic anal-ysis on a selected model problem of structural dynamics, supplied by comments to useful direc-tions of generalization. Several application examples document the feasibility of such approach, up to its software implementation and real data validation.

Anglický abstrakt

Computational modelling of damage in brittle and quasi-brittle materials needs some coupling between micro- and macroscopic crack initiation and evolution, up to their non-negligible softening behaviour. Most such ap-proaches contain ad hoc evaluations, with some physical and engineering motivations, namely those connected with massive application of steelfibre-reinforced concrete and similar composites in building projects, but without any propermathematical existence and convergence analysis for the time development of damage. This paper presents a possibility of such deterministic anal-ysis on a selected model problem of structural dynamics, supplied by comments to useful direc-tions of generalization. Several application examples document the feasibility of such approach, up to its software implementation and real data validation.

Klíčová slova

nonlocal viscoelasticity; brittle and quasi-brittle materials; micro- and macro-fracture; extended finite element method; method of discretization in time; Rothe sequences;

Klíčová slova v angličtině

nonlocal viscoelasticity; brittle and quasi-brittle materials; micro- and macro-fracture; extended finite element method; method of discretization in time; Rothe sequences;

Autoři

VALA, J.; KOZÁK, V.; JAROŠOVÁ, P.

Rok RIV

2021

Vydáno

20.10.2020

Nakladatel

NAUN

Místo

Salem (Oregon, USA)

ISSN

1998-4448

Periodikum

International Journal of Mechanics

Svazek

14

Číslo

1

Stát

Spojené státy americké

Strany od

185

Strany do

197

Strany počet

13

URL

https://www.naun.org/cms.action?id=23199

Plný text v Digitální knihovně

http://hdl.handle.net/11012/196684

BibTex

@article{BUT167385,
  author="Jiří {Vala} and Vladislav {Kozák} and Petra {Jarošová}",
  title="On a computational approach to micro- and macro-modelling of damage in brittle and quasi-brittle materials",
  journal="International Journal of Mechanics",
  year="2020",
  volume="14",
  number="1",
  pages="185--197",
  doi="10.46300/9104.2020.14.25",
  issn="1998-4448",
  url="https://www.naun.org/cms.action?id=23199"
}

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