Numerical support for residual stress measurement by the hole drilling method

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Numerical support for residual stress measurement by the hole drilling method
Original language description
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.
Czech name
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Czech description
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Project
<a href="/en/project/LN00B084" target="_blank" >LN00B084: Research Centre for New Technologies in the Region of West Bohemia</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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