Resonance-based testing facility for fatigue tests of different axially loaded structural elements

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Abstract

This work presents a new resonance-based testing facility for axially loaded structural elements for performing efficient fatigue tests. Two different configurations make it possible to test specimens either under compressive or under tensile loads. In both cases, a mean load is applied. In contrast to conventionally used servo-hydraulic actuators, synchronised imbalance motors with low energy input were used, which allow to generate cyclic loads with high loading frequencies. By setting the excitation frequencies of the motors close to the natural frequency of the system resonant behaviour occurs, which results in a dynamic amplification. Thus, input forces and test duration can be reduced. As a verification of the developed testing facility, two tests, one in each configuration, were carried out and analysed.

Details

OriginalspracheEnglisch
Aufsatznummer117045
Seitenumfang11
FachzeitschriftEngineering structures
Jahrgang298
PublikationsstatusVeröffentlicht - 1 Jan. 2024
Peer-Review-StatusJa

Externe IDs

ORCID /0000-0002-4480-7012/work/151436460
ORCID /0000-0001-8735-1345/work/151437214
ORCID /0009-0001-6906-3507/work/151438381

Schlagworte

Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis

ASJC Scopus Sachgebiete

Schlagwörter

  • Fatigue, Fatigue testing, Resonance, Resonant testing