Determination of Principal Residual Stress Directions by the Incremental Strain Method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F10%3APU89116" target="_blank" >RIV/00216305:26210/10:PU89116 - 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 Stress Directions by the 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 relieved residual strains on the top of the model's core are measured by the three-element strain gauge, turned by the axis of strain gauge "a" from the direction of the principal stress Sig1 about unknown angle "alpha". Depth dependent magnitudes of residual strains, their differences and set of known values of calibration coefficients K1 and K2 together with properly applied linear equations are used for determination of the angle "alpha" and for re-calculation of principal stresses.

Název v anglickém jazyce

Determination of Principal Residual Stress Directions by the 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 relieved residual strains on the top of the model's core are measured by the three-element strain gauge, turned by the axis of strain gauge "a" from the direction of the principal stress Sig1 about unknown angle "alpha". Depth dependent magnitudes of residual strains, their differences and set of known values of calibration coefficients K1 and K2 together with properly applied linear equations are used for determination of the angle "alpha" and for re-calculation of principal stresses.

Druh

D - Stať ve sborníku

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

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

26th conference Computational Mechanics 2010 - Extended Abstracts

ISBN

978-80-7043-919-7

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

10-11

Název nakladatele

University of West Bohemia, Plzeň

Místo vydání

University of West Bohemia, Plzeň

Místo konání akce

Nečtiny

Datum konání akce

8. 11. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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