Numerical study of specimen with steel inclusion: Influence of interfacial transition zone

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU146669" target="_blank" >RIV/00216305:26110/23:PU146669 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2452321622006837" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452321622006837</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.126" target="_blank" >10.1016/j.prostr.2022.12.126</a>

Result language

angličtina

Original language name

Numerical study of specimen with steel inclusion: Influence of interfacial transition zone

Original language description

In this paper, the influence of the interfacial transition zone (ITZ) between steel inclusion and fine-grained cement-based composite on fracture behaviour is investigated. Specimens of the nominal dimensions 40 × 40 × 160 mm with the steel inclusion of the prismatic shape with nominal dimensions 8 × 8 × 40 mm were provided with an initial central edge notch with a depth 12 mm. The aim of this paper is to analyse the behaviour of such specimen by means of numerical modelling by finite element method (Ansys software). A simplified 2D model (plane strain) based on the fracture test configuration was created. The crack propagation assessment was based on the criterion of the average value of tangential stress calculated over certain distance d in dependence on the polar coordinate. It is assumed that the crack is initiated when the average stress reaches its critical value, which depends on the fracture toughness of the material and on the distance d. From the detailed numerical analysis of the described fracture test, we concluded that the crack propagation path depends strongly on the fracture properties of ITZ. The central inclusion works as an obstacle to crack propagation only in the initial stage of failure. The mechanical fracture parameters of the ITZ strongly influence the overall fracture behavior of test specimens

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Article name in the collection

Procedia Structural Integrity: 23 European Conference on Fracture

ISBN

—

ISSN

2452-3216

e-ISSN

—

Number of pages

8

Pages from-to

1000-1007

Publisher name

Elsevier

Place of publication

neuveden

Event location

Funchal, Madeira

Event date

Jun 27, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—