Publication detail

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

VYHLÍDAL, M. KLUSÁK, J.

Original Title

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

Type

conference paper

Language

English

Original Abstract

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

Keywords

Steel inclusion, fracture test, numerical simulation, crack propagation path, the criterion of average tangential stress

Authors

VYHLÍDAL, M.; KLUSÁK, J.

Released

3. 1. 2023

Publisher

Elsevier

ISBN

2452-3216

Periodical

Procedia Structural Integrity

Year of study

42

Number

1

State

Republic of Italy

Pages from

1000

Pages to

1007

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S2452321622006837

Full text in the Digital Library

http://hdl.handle.net/11012/213699

BibTex

@inproceedings{BUT180568,
  author="Michal {Vyhlídal} and Jan {Klusák}",
  title="Numerical study of specimen with steel inclusion: Influence of interfacial transition zone",
  booktitle="Procedia Structural Integrity: 23 European Conference on Fracture",
  year="2023",
  journal="Procedia Structural Integrity",
  volume="42",
  number="1",
  pages="1000--1007",
  publisher="Elsevier",
  doi="10.1016/j.prostr.2022.12.126",
  issn="2452-3216",
  url="https://www.sciencedirect.com/science/article/pii/S2452321622006837"
}