Crack propagation model taking into consideration the local effect of the deviatoric stress and the non-local effect of the isotropic stress

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F11%3A00375077" target="_blank" >RIV/68378297:_____/11:00375077 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Crack propagation model taking into consideration the local effect of the deviatoric stress and the non-local effect of the isotropic stress

Original language description

Ductile fracture initiated by a crack is modeled as a process influenced by two factors: (i) the local value of the elastic energy density of the deviatoric part of the stress tensor, and (ii) the nonlocal values of the elastic energy density of the isotropic part of the stress tensor. The effective spot for the deviatoric energy is located at some distance ahead of the crack tip, the nonlocal effect of the isotropic energy operates from a neighborhood of the effective spot, determined by a specific distance from this spot. These assumptions lead to a strength criterion, which is formally a generalization of the Mises criterion. The presented criterion can be used for modeling the influence of the length of the crack, for modeling such phenomena as avoidance of two cracks proceeding against each other, for the pop-in phenomenon, for slowing-down of the progress of a crack near a free surface, etc.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA103%2F09%2F2101" target="_blank" >GA103/09/2101: Evaluation of the energy responsible for fracture advancing</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

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

Name of the periodical

Acta Technica CSAV

ISSN

0001-7043

e-ISSN

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Volume of the periodical

56

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

16

Pages from-to

343-358

UT code for WoS article

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EID of the result in the Scopus database

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