Numerical support for residual stress measurement by the hole drilling method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F03%3A00000178" target="_blank" >RIV/49777513:23640/03:00000178 - 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

Numerical support for residual stress measurement by the hole drilling method

Popis výsledku v původním jazyce

Residual stress represents a significant technical problem, therefore, a great care is given to its determination. Hole drilling technique is one of the most frequently used method of residual stress determination. This technique is based on drilling a small hole to the material and measurement of relieved strain around it. Than the residual stress is evaluated from the measured strain by using so-called calibration coefficients (influence function). These coefficients have to be determined by numeric al analysis in general case. Possibilities of calibration coefficients computation using finite element method (FEM) computational system Cosmos/M are presented in this paper. Analyses of computation parameters influence are performed - used solver and its parameters, finite elements type, model type, mesh density and sample shape. Results are compared to each other and with an analytical solution for a special case.

Název v anglickém jazyce

Numerical support for residual stress measurement by the hole drilling method

Popis výsledku anglicky

Residual stress represents a significant technical problem, therefore, a great care is given to its determination. Hole drilling technique is one of the most frequently used method of residual stress determination. This technique is based on drilling a small hole to the material and measurement of relieved strain around it. Than the residual stress is evaluated from the measured strain by using so-called calibration coefficients (influence function). These coefficients have to be determined by numeric al analysis in general case. Possibilities of calibration coefficients computation using finite element method (FEM) computational system Cosmos/M are presented in this paper. Analyses of computation parameters influence are performed - used solver and its parameters, finite elements type, model type, mesh density and sample shape. Results are compared to each other and with an analytical solution for a special case.

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

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Projekt

<a href="/cs/project/LN00B084" target="_blank" >LN00B084: Nové technologie Výzkumné centrum v Západočeském regionu</a><br>

Návaznosti

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

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název statě ve sborníku

Numerical Methods in Continuum Mechanics

ISBN

80-968823-3-3

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

1-12

Název nakladatele

University of Žilina

Místo vydání

Žilina

Místo konání akce

Žilina

Datum konání akce

9. 9. 2003

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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