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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00541321" target="_blank" >RIV/68081723:_____/20:00541321 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26110/20:PU134817

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0167844219306500?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0167844219306500?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tafmec.2020.102486" target="_blank" >10.1016/j.tafmec.2020.102486</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Theoretical and Applied Fracture Mechanics

ISSN

0167-8442

e-ISSN

1872-7638

Svazek periodika

107

Číslo periodika v rámci svazku

JUN

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

102486

Kód UT WoS článku

000528008200020

EID výsledku v databázi Scopus

2-s2.0-85078802718