University of Hertfordshire

Design and Assembly of an Ultrasonic Fatigue Testing Machine

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Documents

  • 904653

    Accepted author manuscript, 734 KB, PDF document

  • Manuel Freitas
  • V. Anes
  • Diogo Montalvao
  • Luís Reis
  • A. M. R. Ribeiro
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Original languageEnglish
Title of host publicationAnales de Mecánica de la Fractura
Pages335-340
Volume28
Publication statusPublished - Apr 2011
EventXXVIII GEF – Encuentro del Grupo Español de Fractura - Gijon, Spain
Duration: 6 Apr 20118 Apr 2011

Conference

ConferenceXXVIII GEF – Encuentro del Grupo Español de Fractura
CountrySpain
CityGijon
Period6/04/118/04/11

Abstract

The lifetime approach in fatigue design based on S_N curves establish an infinite life when the cyclic stress applied is below than the endurance limit. Results in this field revealed fatigue failures beyond 10e7 cycles, indicating that there´s
no endurance fatigue limit, however obtaining this data with servo-hydraulic testing machine can be very timeconsuming and expensive. Ultrasonic fatigue testing machines are a new generation of devices designed to perform
VHCF tests in a very short time. This paper describes the design and assembly of an ultrasonic fatigue testing device working at 20 kHz.

ID: 693122