Fatigue limit evaluation of structure materials based on thermographic analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F17%3AN0000014" target="_blank" >RIV/26316919:_____/17:N0000014 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S245232161730450X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S245232161730450X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2017.11.094" target="_blank" >10.1016/j.prostr.2017.11.094</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fatigue limit evaluation of structure materials based on thermographic analysis

Popis výsledku v původním jazyce

The work presented here is dealing with implementation of new approach to fatigue limit determination. The approach is based on application of thermography on specimen that is step-by-step increasingly loaded. Detected temperature changes at different stress levels are evaluated and final fatigue limit level is determined.. Thermography analysis seems to have a great potential to reduce the material demand and to achieve the minimum testing time while the quality of test results remains comparable to standard approach. This is extremely useful in cases where the experimental material is strictly limited, such as new materials development, residual service life of in-service components determination or also, nowadays, for additive manufacturing components, where specimens preparation is expensive. Each specimen was tested at different stress amplitudes, where the test procedure consists of at least 8 loading steps. Results obtained with the thermography technique were compared with those obtained from standard high-cycle force-controlled fatigue tests under constant loading until failure in accordance with the ASTM E466-07 standard. All tests were done at room temperature with the cycle asymmetry coefficient R = -1.

Název v anglickém jazyce

Fatigue limit evaluation of structure materials based on thermographic analysis

Popis výsledku anglicky

The work presented here is dealing with implementation of new approach to fatigue limit determination. The approach is based on application of thermography on specimen that is step-by-step increasingly loaded. Detected temperature changes at different stress levels are evaluated and final fatigue limit level is determined.. Thermography analysis seems to have a great potential to reduce the material demand and to achieve the minimum testing time while the quality of test results remains comparable to standard approach. This is extremely useful in cases where the experimental material is strictly limited, such as new materials development, residual service life of in-service components determination or also, nowadays, for additive manufacturing components, where specimens preparation is expensive. Each specimen was tested at different stress amplitudes, where the test procedure consists of at least 8 loading steps. Results obtained with the thermography technique were compared with those obtained from standard high-cycle force-controlled fatigue tests under constant loading until failure in accordance with the ASTM E466-07 standard. All tests were done at room temperature with the cycle asymmetry coefficient R = -1.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/TH02010544" target="_blank" >TH02010544: Vývoj nedestruktivního měřicího systému kombinujícího digitální obrazovou korelaci s termoelastickou napěťovou analýzou</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Procedia Structural Integrity

ISSN

2452-3216

e-ISSN

—

Svazek periodika

7

Číslo periodika v rámci svazku

2017

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

6

Strana od-do

315-320

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85065973990