Non-local Damage Model Based on Displacement Averaging
Result description
Continuum damage models describe the changes of material stiffness and strength, caused by the evolution of defects, in the framework of continuum mechanics. In many materials, a fast evolution of defects leads to stress-strain laws with softening, whichcreates serious mathematical and numerical problems. To regularize the model behavior, various generalized continuum theories have been proposed. Integral-type nonlocal damage models are often based on weighted spatial averaging of a strain-like quantity.
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Non-local Damage Model Based on Displacement Averaging
Original language description
Continuum damage models describe the changes of material stiffness and strength, caused by the evolution of defects, in the framework of continuum mechanics. In many materials, a fast evolution of defects leads to stress-strain laws with softening, whichcreates serious mathematical and numerical problems. To regularize the model behavior, various generalized continuum theories have been proposed. Integral-type nonlocal damage models are often based on weighted spatial averaging of a strain-like quantity.
Czech name
Nelokální model poškození založený na průměrování posunů
Czech description
Modely poškození popisují změny tuhosti a pevnosti materiálu v rámci mechaniky kontinua. V řadě materiálů vede rychlý rozvoj defektů ke změkčení, z čehož plynou vážné numerické a matematické komplikace. Regularizaci modelu lze provést pomocí nejrůznějších zobecněných teorií kontinua. Nelokální modely integrálního typu jsou často založeny na váženém prostorovém průměrování deformačních veličin.
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JJ - Other materials
OECD FORD branch
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Result continuities
Project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
ISSN
0029-5981
e-ISSN
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Volume of the periodical
63
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
26
Pages from-to
77-102
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
JJ - Other materials
Year of implementation
2005