Experimental evaluation of multiaxial test-tailored specifications based on Fatigue Damage multi-Spectra
Year: 2024
Type: article
Abstract: In the industrial sector, laboratory tests are frequently performed to evaluate the durability of structures under mechanical loads. These tests typically involve sequentially applied uniaxial loads, even though operational conditions are often multiaxial. To address this inconsistency, a new frequency-domain approach has been developed to generate test-tailored specifications for multiaxial vibration based on the Fatigue Damage multi-Spectrum (FDmS). This paper analyzes this procedure through experimental trials, showing the accuracy of the generated multiaxial test-tailored specifications, as well as its ability to synthesize and generate cross-correlations. • Modal coupling and load cross-correlation significantly affect structures lifetime. • Sequential testing ignores these phenomena, resulting in lifetime discrepancies that FDmS can predict. • FDmS-based procedure accurately generates a synthesized cross-correlation from operational loads. • FDmS-based procedure can reduce test duration while preserving equivalence with operational multiaxial loads.
Source: International Journal of Fatigue
Authors: M. Aimé, A. Banvillet, L. Khalij, E. Pagnacco, E. Chatelet, R. Dufour
Institutions: CEA CESTA, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Normandie Université, Laboratoire de Sécurité des Procédés Chimiques, Laboratoire de Mécanique de Normandie, Université de Rouen Normandie, Institut National des Sciences Appliquées Rouen Normandie, Centre National de la Recherche Scientifique, Laboratoire de Mécanique des Contacts et des Structures, Institut National des Sciences Appliquées de Lyon
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,780
Award: G2197144791
OpenAlex ID: W4404398195