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Two Parameter Fracture Mechanics: Fatigue Crack Behavior under Mixed Mode Conditions

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F08%3A00317629" target="_blank" >RIV/68081723:_____/08:00317629 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Two Parameter Fracture Mechanics: Fatigue Crack Behavior under Mixed Mode Conditions

  • Original language description

    The fatigue crack path has been studied on tensile specimen with holes. The experimental crack path trajectories were compared with those calculated numerically. To incorporate the influence of constraint on the crack curving, we predicted the fatigue crack path by using the two-parameter modification of the maximum tensile stress (MTS) criterion. The values of the mixed-mode stress intensity factors KI, and KII as well as the corresponding constraint level characterized by T-stress were calculated forthe obtained curvilinear and the reference crack path trajectories. It is shown that in the studied configuration the effect of T-stress on the crack path is not significant. On the other hand the effect of constraint on the fatigue crack propagation rate is more pronounced.

  • Czech name

    Dvouparametrová lomová mechanika: chování únavové trhliny při kombinovaném namáhání

  • Czech description

    Chování únavové trhliny je studováno na taženém vzorku se dvěma otvory. Experimentálně změřená dráha trhliny je porovnána s numericky predikovanou. Pro stanovení dráhy numericky simulované trhliny je použito MTS kritérium a jeho dvouparametrová modifikace. Je ukázáno, že v tomto případě nemá T-napětí zásadní vliv na dráhu šíření trhliny. Na druhou stranu má constraint efekt podstatný vliv na rychlost šíření únavové trhliny.

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

Result continuities

  • Project

    <a href="/en/project/GP101%2F04%2FP001" target="_blank" >GP101/04/P001: The influence of constraint on threshold values of the stress intensity factor</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Engineering Fracture Mechanics

  • ISSN

    0013-7944

  • e-ISSN

  • Volume of the periodical

    75

  • Issue of the periodical within the volume

    3-4

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    9

  • Pages from-to

  • UT code for WoS article

    000252231800048

  • EID of the result in the Scopus database