LOW CYCLE FATIGUE TESTS WITH THE USE OF MINIATURIZED TEST SPECIMENS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F17%3AN0000137" target="_blank" >RIV/26316919:_____/17:N0000137 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1115/PVP2017-66174" target="_blank" >http://dx.doi.org/10.1115/PVP2017-66174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/PVP2017-66174" target="_blank" >10.1115/PVP2017-66174</a>

Result language

angličtina

Original language name

LOW CYCLE FATIGUE TESTS WITH THE USE OF MINIATURIZED TEST SPECIMENS

Original language description

Determination of mechanical properties with the use of sub-sized specimens is topic a high interest nowadays. The application of the sub-sized samples is quite wide for all cases where only limited amount of the experimental material is available such as evaluation of additively manufactured products properties, residual life of in-service components, properties determination of developed nano-structured materials, assessment of dilatometric samples used for thermal and thermo-mechanical treatment development, local properties of components, weld joints and so on. Concerning this large application field it would be very useful to prepare standard for small size samples especially for the most demanded material properties: tensile properties, notch impact transition temperature, fatigue properties, fracture toughness and creep. Current paper is going to deal with the low fatigue (LCF) properties assessment with the use of miniaturized specimens'. There were proposed specimen geometries with the use of FEM analysis and testing procedures for considered mini-specimens tests were developed. In the case of strain controlled LCF tests, contactless testing system had to be established for testing of small sized specimens, where it is not possible to apply standard mechanical extensometers for test control. Moreover, LCF procedure for high temperature tests was also successfully established here. The LCF results were subsequently used for Manson-Coffin parameters determination. Results of low cycle tests for several steels are confronted with the results of standard sized specimens with very good agreement for all considered conditions.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/TH02020448" target="_blank" >TH02020448: Service life assessment with the use of mini-samples</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Article name in the collection

PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, 2017, VOL 1A

ISBN

978-0-7918-5790-8

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

nestránkováno

Publisher name

The American Society of Mechanical Engineers

Place of publication

New York, USA

Event location

Waikoloa, Hawaii

Event date

Jul 16, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000422810300072