Upgrade of Drilling Hole Method for Residual Stress Identification
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F04%3A02101100" target="_blank" >RIV/68407700:21220/04:02101100 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Upgrade of Drilling Hole Method for Residual Stress Identification
Original language description
Principles of current theories applied for the hole drilling method evaluation of residual stresses were tested by beams in bending. It was shown that considerable differences exist between the stress state estimated by the hole-drilling method and the real stress state. 3D numerical models of the beams in bending and pension were created and the principle of hole-drilling methods was tested. It was shown that the basic base function used in the current theory for definition of the radial strain aroundthe drilled hole can not describe the stress distribution accurately. Therefore new basis functions were suggested and tested. When developing this new method for more general applications, we defined suitable base functions for specific diameters of thehole and for specific materiále characterized by Young's modulus of elasticity E and Poisson's ratio u.
Czech name
Upřesnění teorie odvrtávací metody pro identifikaci reziduálních napětí
Czech description
Teorie odvrtávací metody pro identifikaci reziduálních napětí je formulována mezinárodně užívanou normou ASTM E837 , která zahrnuje pro ideální centrický vrtaný otvor tabulky cejchovacích konstant pokrývající typy vyráběných růžic, kde vyhodnocení signálů růžic probíhá podle teorie založené na Kirchově desce. Numerickými simulacemi odvrtávacího principu jsme poukázali na velkou citlivost vrtaného otvoru na jeho imperfekce, zejména jeho excentricitu vůči středu odvrtávací růžice.
Classification
Type
D - Article in proceedings
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA106%2F02%2F0612" target="_blank" >GA106/02/0612: Optimization of a forming process of thick-walled tubes and components in view of residual stresses and strains</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of Workshop 2004
ISBN
80-01-02945-X
ISSN
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e-ISSN
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Number of pages
2
Pages from-to
646-647
Publisher name
ČVUT
Place of publication
Praha
Event location
Praha
Event date
Mar 22, 2004
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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