Investigation of very high cycle fatigue by thermographyc method

Nowadays, many components and structures are subjected to fatigue loading with a number of cycles higher than 107. In this scientific work, the behaviour of two kinds of tool steel was investigated in very high cycle fatigue regime. The fatigue tests were carried out at the frequency of 20 kHz and i...

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Main Authors: V. Crupi, G. Epasto, E. Guglielmino, G. Risitano
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2014-09-01
Series:Fracture and Structural Integrity
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Online Access:https://www.fracturae.com/index.php/fis/article/view/1336
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author V. Crupi
G. Epasto
E. Guglielmino
G. Risitano
author_facet V. Crupi
G. Epasto
E. Guglielmino
G. Risitano
author_sort V. Crupi
collection DOAJ
description Nowadays, many components and structures are subjected to fatigue loading with a number of cycles higher than 107. In this scientific work, the behaviour of two kinds of tool steel was investigated in very high cycle fatigue regime. The fatigue tests were carried out at the frequency of 20 kHz and in fully reversed tensioncompression mode (R = -1) by means of an ultrasonic fatigue testing equipment. The radiometric surface temperature was detected during all the test by means of an IR camera in order to extend the Thermographic Method and the Energetic Approach in very high cycle fatigue regime. The failure mechanism of the investigated steels was evaluated by means of several experimental techniques (scanning electron microscopy, Energy Dispersive X-ray spectroscopy and Optical Microscopy).
format Article
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institution DOAJ
issn 1971-8993
language English
publishDate 2014-09-01
publisher Gruppo Italiano Frattura
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series Fracture and Structural Integrity
spelling doaj-art-dd5bd62d36d44c7a83cbded1203f67712025-08-20T02:51:45ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932014-09-01830Investigation of very high cycle fatigue by thermographyc methodV. CrupiG. EpastoE. GuglielminoG. RisitanoNowadays, many components and structures are subjected to fatigue loading with a number of cycles higher than 107. In this scientific work, the behaviour of two kinds of tool steel was investigated in very high cycle fatigue regime. The fatigue tests were carried out at the frequency of 20 kHz and in fully reversed tensioncompression mode (R = -1) by means of an ultrasonic fatigue testing equipment. The radiometric surface temperature was detected during all the test by means of an IR camera in order to extend the Thermographic Method and the Energetic Approach in very high cycle fatigue regime. The failure mechanism of the investigated steels was evaluated by means of several experimental techniques (scanning electron microscopy, Energy Dispersive X-ray spectroscopy and Optical Microscopy).https://www.fracturae.com/index.php/fis/article/view/1336Thermographic method
spellingShingle V. Crupi
G. Epasto
E. Guglielmino
G. Risitano
Investigation of very high cycle fatigue by thermographyc method
Fracture and Structural Integrity
Thermographic method
title Investigation of very high cycle fatigue by thermographyc method
title_full Investigation of very high cycle fatigue by thermographyc method
title_fullStr Investigation of very high cycle fatigue by thermographyc method
title_full_unstemmed Investigation of very high cycle fatigue by thermographyc method
title_short Investigation of very high cycle fatigue by thermographyc method
title_sort investigation of very high cycle fatigue by thermographyc method
topic Thermographic method
url https://www.fracturae.com/index.php/fis/article/view/1336
work_keys_str_mv AT vcrupi investigationofveryhighcyclefatiguebythermographycmethod
AT gepasto investigationofveryhighcyclefatiguebythermographycmethod
AT eguglielmino investigationofveryhighcyclefatiguebythermographycmethod
AT grisitano investigationofveryhighcyclefatiguebythermographycmethod