Analysis and Correction of the Hole-drilling Method Used for the 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%3A02104180" target="_blank" >RIV/68407700:21220/04:02104180 - 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
Analysis and Correction of the Hole-drilling Method Used for the Residual Stress Identification
Original language description
Principles of the current theories of the hole drilling method for evaluation of the residual stress were tested by the beams in bending. It was shown that considerable differences exist between the stress state estimated by the hole-drilling method andreal stress state. 3D numerical models of the beams in bending and tension were created and the hole-drilling method was modelled. It was shown that thebasic base function used in the current theory for definition of the radial strain around the drilledhole, is not able to describle the distribution of the stress accurately. Therefore a new basic functions were suggested and tested. Using the new basic function a new method for estimation of the residual stresses was defined and verified.
Czech name
Analýza a zpřesnění odvrtávacího principu z hlediska identifikace zbytkové napjatosti
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
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
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
Name of the periodical
Materiálové inžinierstvo
ISSN
1335-0803
e-ISSN
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Volume of the periodical
11
Issue of the periodical within the volume
2
Country of publishing house
SK - SLOVAKIA
Number of pages
4
Pages from-to
1-4
UT code for WoS article
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EID of the result in the Scopus database
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