Stress relaxation by power-law creep during growth of a misfitting precipitate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00463431" target="_blank" >RIV/68081723:_____/16:00463431 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ijsolstr.2016.06.021" target="_blank" >http://dx.doi.org/10.1016/j.ijsolstr.2016.06.021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijsolstr.2016.06.021" target="_blank" >10.1016/j.ijsolstr.2016.06.021</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stress relaxation by power-law creep during growth of a misfitting precipitate

Popis výsledku v původním jazyce

The deformation and stress state relaxation induced by the growth of a misfitting spherical precipitate embedded in a creeping matrix is studied. The precipitate and the matrix may have different elastic properties. The misfit eigenstrain in the precipitate may lead to a remarkable stress state which can be relaxed in the matrix by power-law creep. A semi-analytical solution of the problem, accounting for the interaction of the elastic and creep strain state, is provided by combining an analytical solution with a numerical integration of the creep strain rate with respect to time and the radial coordinate. This procedure provides a complete solution of the system kinetics. The approach is compared with finite element calculations utilizing the standard program package ABAQUS. Finally, also the mechanical contribution to the energetics of the precipitate growth is analyzed

Název v anglickém jazyce

Stress relaxation by power-law creep during growth of a misfitting precipitate

Popis výsledku anglicky

The deformation and stress state relaxation induced by the growth of a misfitting spherical precipitate embedded in a creeping matrix is studied. The precipitate and the matrix may have different elastic properties. The misfit eigenstrain in the precipitate may lead to a remarkable stress state which can be relaxed in the matrix by power-law creep. A semi-analytical solution of the problem, accounting for the interaction of the elastic and creep strain state, is provided by combining an analytical solution with a numerical integration of the creep strain rate with respect to time and the radial coordinate. This procedure provides a complete solution of the system kinetics. The approach is compared with finite element calculations utilizing the standard program package ABAQUS. Finally, also the mechanical contribution to the energetics of the precipitate growth is analyzed

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

—

Projekt

<a href="/cs/project/GA14-24252S" target="_blank" >GA14-24252S: Příprava a optimalizace creepu odolných kompozitů s Fe-Al matricí a částicemi Al2O3 s submikronovou strukturou</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

International Journal of Solids and Structures

ISSN

0020-7683

e-ISSN

—

Svazek periodika

96

Číslo periodika v rámci svazku

OCT

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

74-80

Kód UT WoS článku

000381324700007

EID výsledku v databázi Scopus

2-s2.0-84979021055