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Analysis of the Hole Drilling Method Principle 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%3A02101096" target="_blank" >RIV/68407700:21220/04:02101096 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Analysis of the Hole Drilling Method Principle Used for the 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 tension 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 materials characterized by Young's modulus of elasticity E and Poisson's ratio Mi.

  • Czech name

    Analýza 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

    D - Article in proceedings

  • CEP classification

    JL - Fatigue and fracture mechanics

  • OECD FORD branch

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

  • e-ISSN

  • Number of pages

    2

  • Pages from-to

    644-645

  • 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