Constitutive modeling of ratchetting of metal particulate-reinforced ceramic matrix composites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F01%3APU20381" target="_blank" >RIV/00216305:26210/01:PU20381 - 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

Constitutive modeling of ratchetting of metal particulate-reinforced ceramic matrix composites

Original language description

Brittle solids fail in compression by a process of progressive microfracture. If subjected to cyclic loading beyond the elastic range with nonzero mean stress, usually there is a cycle by cycle accumulation of inelasticstrain related to microfracturing in the direction of mean stress similarly like an accumulation of plastic strain in steels or other metals. This phenomenon is called cyclic creep or ratcheting. Using a suitable composite approach a response of representative volume element of compositemay be modeled. It is proposed that the weakening constraint power of the matrix caused by microfracture damage around inclusions can reconcile the model predictions with experiment. introduce a microfracture damage by an approximative, self-consistent method. The microfracture damage is closely coupled with the plasticity of inclusions and provides additional inelastic strains. Numerical results are presented and compared with experimental data.

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

JI - Composite materials

OECD FORD branch

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Project

<a href="/en/project/GA101%2F99%2F0829" target="_blank" >GA101/99/0829: Micromechanics and nonphenomenological constitutive relations of composites with brittle matrix in low cycle compression-compression conditions</a><br>

Continuities

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

Publication year

2001

Confidentiality

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

Name of the periodical

Materials Science and Engineering

ISSN

0921-5093

e-ISSN

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Volume of the periodical

319

Issue of the periodical within the volume

12

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

5

Pages from-to

657-661

UT code for WoS article

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EID of the result in the Scopus database

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