Theoretical Analysis of the Hole Drilling Method Used for the Residual Stress Identification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F03%3A02092084" target="_blank" >RIV/68407700:21220/03:02092084 - 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

Theoretical Analysis of the Hole Drilling Method Used for the Residual Stress Identification

Popis výsledku v původním jazyce

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 the basic base function used in current theory for definition the radial strain around the drilled hole is not able to describe the distribution of the stress accurately. Therefore the new basis functions were suggested and tested. Using new basic function a new method for estimation the residual stresses was defined and verified. Excepting this method we have suggested another approach for evaluation the residual stresses called "Differentiation signal method" which offers more general solution.

Název v anglickém jazyce

Theoretical Analysis of the Hole Drilling Method Used for the Residual Stress Identification

Popis výsledku anglicky

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 the basic base function used in current theory for definition the radial strain around the drilled hole is not able to describe the distribution of the stress accurately. Therefore the new basis functions were suggested and tested. Using new basic function a new method for estimation the residual stresses was defined and verified. Excepting this method we have suggested another approach for evaluation the residual stresses called "Differentiation signal method" which offers more general solution.

Druh

B - Odborná kniha

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F02%2F0612" target="_blank" >GA106/02/0612: Optimalizace procesu tváření tlustostěnných trub a součástí z hlediska zbytkové napjatosti a deformací</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

ISBN

80-01-02834-8

Počet stran knihy

21

Název nakladatele

ČVUT

Místo vydání

Praha

Kód UT WoS knihy

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