Development of fracture process zone in quasi-brittle bodies during failure

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F09%3APU86640" target="_blank" >RIV/00216305:26110/09:PU86640 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

Vývoj lomové procesní zóny v kvazikřehkých tělesech během lomu

Original language description

The paper introduces a methodology for an estimation of the size and shape of a fracture process zone evolving at the macroscopic crack tip in quasi-brittle materials during their tensile failure. The procedure is based on a general description of the stress field in cracked bodies done by Williams' power series in combination with the philosophy and selected features of classical non-linear fracture models for concrete, i.e. the equivalent elastic crack models and the cohesive crack models. The proposed procedure incorporated in existing methods for the fracture parameters determination is supposed to eliminate or substantially decrease the effect of the test specimen size and geometry (the effect of the specimen's free boundaries) on the determined values of fracture characteristics of quasi-brittle materials, from which the existing methods considerably suffer. The estimation of the fracture process zone development during the fracture is illustrated on numerically simulated fractur

Czech name

Vývoj lomové procesní zóny v kvazikřehkých tělesech během lomu

Czech description

The paper introduces a methodology for an estimation of the size and shape of a fracture process zone evolving at the macroscopic crack tip in quasi-brittle materials during their tensile failure. The procedure is based on a general description of the stress field in cracked bodies done by Williams' power series in combination with the philosophy and selected features of classical non-linear fracture models for concrete, i.e. the equivalent elastic crack models and the cohesive crack models. The proposed procedure incorporated in existing methods for the fracture parameters determination is supposed to eliminate or substantially decrease the effect of the test specimen size and geometry (the effect of the specimen's free boundaries) on the determined values of fracture characteristics of quasi-brittle materials, from which the existing methods considerably suffer. The estimation of the fracture process zone development during the fracture is illustrated on numerically simulated fractur

Type

D - Article in proceedings

CEP classification

JM - Structural engineering

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2009

Confidentiality

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

Article name in the collection

Engineering mechanics 2009

ISBN

978-80-86246-35-2

ISSN

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e-ISSN

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Number of pages

12

Pages from-to

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Publisher name

Neuveden

Place of publication

Svratka, Česká republika

Event location

Svratka

Event date

May 11, 2009

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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