Fatigue Limit Evaluation Using Thermographic Measurementduring Cyclic Loading - 1D and 2D method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F18%3A43953275" target="_blank" >RIV/49777513:23640/18:43953275 - 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

Fatigue Limit Evaluation Using Thermographic Measurementduring Cyclic Loading - 1D and 2D method

Popis výsledku v původním jazyce

Testing of material fatigue properties belongs to important material examinations. A standard fatigue measurement is mostly a time-consuming and expensive experiment, among others due to a number of samples needed. Infrared thermography is a method for a noncontact temperature measurement. Thermographic methods can detect small temperature changes caused by transformations between mechanical and thermal energy during a cyclic loading. This allows a use of the thermographic methods for fatigue testing. This contribution is focused on a development of an online thermographic method for fatigue limit evaluation during a sample cyclic loading. A novel 2D approach of fatigue limit evaluation is introduced. It brings a pixel wise view, which advantages compared to a standard 1D evaluation are demonstrated. It is presented a good correlation of results obtained by a standard Wöhler curve based evaluation and by thermographic methods.

Název v anglickém jazyce

Fatigue Limit Evaluation Using Thermographic Measurementduring Cyclic Loading - 1D and 2D method

Popis výsledku anglicky

Testing of material fatigue properties belongs to important material examinations. A standard fatigue measurement is mostly a time-consuming and expensive experiment, among others due to a number of samples needed. Infrared thermography is a method for a noncontact temperature measurement. Thermographic methods can detect small temperature changes caused by transformations between mechanical and thermal energy during a cyclic loading. This allows a use of the thermographic methods for fatigue testing. This contribution is focused on a development of an online thermographic method for fatigue limit evaluation during a sample cyclic loading. A novel 2D approach of fatigue limit evaluation is introduced. It brings a pixel wise view, which advantages compared to a standard 1D evaluation are demonstrated. It is presented a good correlation of results obtained by a standard Wöhler curve based evaluation and by thermographic methods.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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