Determination of Principal Residual Stresses Directions by Incremental Strain Method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F11%3APU93050" target="_blank" >RIV/00216305:26210/11:PU93050 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of Principal Residual Stresses Directions by Incremental Strain Method

Popis výsledku v původním jazyce

The ring-core method is the semi-destructive experimental method used for evaluation of the homogeneous and non-homogeneous residual stresses, acting over depth of drilled core. By using incremental strain method (ISM) for the residual state of stress determination, this article describes procedure how unknown directions and magnitudes of principal residual stresses can be determined. Finite element method (FEM) is used for the numerical simulation of homogenous residual state of stress and for subsequent strain determination. Relieved strains on the top of the models core are measured by simulated three-element strain gauge, turned by the axis of strain gauge "a" from the direction of the principal stress Sig1 about unknown angle alfa. Depth dependentmagnitudes of relieved strains, their differences and set of known values of calibration coefficients K1 and K2 or relaxation coefficients A and B are used together for determination of the angle alfa and for re-calculation of principal

Název v anglickém jazyce

Determination of Principal Residual Stresses Directions by Incremental Strain Method

Popis výsledku anglicky

The ring-core method is the semi-destructive experimental method used for evaluation of the homogeneous and non-homogeneous residual stresses, acting over depth of drilled core. By using incremental strain method (ISM) for the residual state of stress determination, this article describes procedure how unknown directions and magnitudes of principal residual stresses can be determined. Finite element method (FEM) is used for the numerical simulation of homogenous residual state of stress and for subsequent strain determination. Relieved strains on the top of the models core are measured by simulated three-element strain gauge, turned by the axis of strain gauge "a" from the direction of the principal stress Sig1 about unknown angle alfa. Depth dependentmagnitudes of relieved strains, their differences and set of known values of calibration coefficients K1 and K2 or relaxation coefficients A and B are used together for determination of the angle alfa and for re-calculation of principal

Druh

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

CEP obor

JR - Ostatní strojírenství

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Applied andComputational Mechanics

ISSN

1802-680X

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

5-14

Kód UT WoS článku

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EID výsledku v databázi Scopus

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