Detail publikace

Computational analysis of quasi-brittle fracture in fibre reinforced cementitious composites

VALA, J. KOZÁK, V.

Originální název

Computational analysis of quasi-brittle fracture in fibre reinforced cementitious composites

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Prediction of quasi-brittle behaviour of structural components from fibre reinforced composites under mechanical loads should incorporate such physical processes as elastic, resp. plastic deformation, crack initiation, crack propagation in a matrix, pull out of fibres and rupture of fibres. The computational model for the practically most important case of cementitious composites containing short intentionally or quasi-randomly oriented steel, ceramic, resp. polymeric fibres with its primary import of suppression of tensile stresses in a matrix will be introduced. Its numerical approach relies on the modified eXtended Finite Element Method, open to the implementation of the cohesive traction separation law. This paper introduces the implementation of some integral-type nonlocal constitutive strain-stress relation. It pays attention namely to the Eringen model for the generation of the multiplicative damage factor, to the related quasi-static analysis, to the existence of a weak solution of the corresponding boundary and initial value problem with a parabolic system of partial differential equation and to the convergence of an algorithm based on 3 types of Rothe sequences. Thus, the article combines the possibilities of the two procedures for modeling crack propagation. Microstructural behavior is contained in the Eringen model, the effect of macro behavior in modified finite element method XFEM.

Klíčová slova

quasi-brittle fracture; fibre reinforced composites; computational analysis

Autoři

VALA, J.; KOZÁK, V.

Vydáno

1. 6. 2020

Nakladatel

Elsevier

Místo

Amsterdam

ISSN

0167-8442

Periodikum

Theoretical and Applied Fracture Mechanics

Ročník

107

Číslo

1

Stát

Nizozemsko

Strany od

5501

Strany do

5510

Strany počet

8

URL

https://doi.org/10.1016/j.tafmec.2020.102486

BibTex

@article{BUT161273,
  author="Jiří {Vala} and Vladislav {Kozák}",
  title="Computational analysis of quasi-brittle fracture in fibre reinforced cementitious composites",
  journal="Theoretical and Applied Fracture Mechanics",
  year="2020",
  volume="107",
  number="1",
  pages="5501--5510",
  doi="10.1016/j.tafmec.2020.102486",
  issn="0167-8442",
  url="https://doi.org/10.1016/j.tafmec.2020.102486"
}