Modelling of interfacial transition zone effect on resistance to crack propagation in fine-grained cement-based composites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00481493" target="_blank" >RIV/68081723:_____/17:00481493 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26110/17:PU124025

Result on the web

<a href="http://dx.doi.org/10.3221/IGF-ESIS.41.29" target="_blank" >http://dx.doi.org/10.3221/IGF-ESIS.41.29</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3221/IGF-ESIS.41.29" target="_blank" >10.3221/IGF-ESIS.41.29</a>

Result language

angličtina

Original language name

Modelling of interfacial transition zone effect on resistance to crack propagation in fine-grained cement-based composites

Original language description

In this paper, the attention is paid to investigation of the importance of the interfacial transition zone (ITZ) in selected fine-grained cement-based composites for the global fracture behaviour. This is a region of cement paste around the aggregate particles which specific features could have significant impact on the final behaviour of cement composites with a crack tip nearby this interface under applied tension. The aim of this work is to show the basic interface microstructure by scanning electron microscopy (SEM) done by MIRA3 TESCAN and to analyse the behaviour of such composite by numerical modelling. Numerical studies assume two different ITZ thicknesses taken from SEM analysis. A simplified cracked geometry (consisting of three phases – matrix, ITZ, and aggregate) is modelled by means of the finite element method with a crack terminating at the matrix–ITZ interface. ITZ's modulus of elasticity is taken from generalized self-consistent scheme. A few conclusions are discussed based on comparison of the average values of the opening stress ahead of the crack tip with their critical values. The analyses dealing with the effect of ITZ's properties on the stress distribution should contribute to better description of toughening mechanisms in silicate-based composites

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20306 - Audio engineering, reliability analysis

Project

<a href="/en/project/GA16-18702S" target="_blank" >GA16-18702S: AMIRI − Aggregate-Matrix-Interface Related Issues in silicate-based composites</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Frattura ed Integrita Strutturale

ISSN

1971-8993

e-ISSN

—

Volume of the periodical

11

Issue of the periodical within the volume

41

Country of publishing house

IT - ITALY

Number of pages

9

Pages from-to

211-219

UT code for WoS article

000423951800029

EID of the result in the Scopus database

2-s2.0-85022083357