In the present paper, the very-high-cycle fatigue (VHCF) response of a structural adhesive used for automotive applications, Betaforce 4600G modified with microspheres, has been experimentally assessed. Ultrasonic fully reversed tension–compression tests up to 10^9 cycles have been carried out with the testing machine developed by the authors on adhesives without macroscopic defects and on adhesives with artificial defects, inserted during the butt-joint preparation. Fracture surfaces have been observed with the optical microscope and the P-S-N curves estimated. Experimental results have shown that defect location significantly affects the VHCF strength and fracture surfaces exhibit a peculiar morphology with three distinct characteristic regions.
Fatigue response up to 10^9 cycles of a structural epoxy adhesive / Tridello, Andrea; Ciardiello, Raffaele; Paolino, Davide Salvatore; Goglio, Luca. - In: FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES. - ISSN 8756-758X. - STAMPA. - (2020). [10.1111/ffe.13240]
Titolo: | Fatigue response up to 10^9 cycles of a structural epoxy adhesive | |
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Data di pubblicazione: | 2020 | |
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Digital Object Identifier (DOI): | http://dx.doi.org/10.1111/ffe.13240 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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FFEMS_2020_embargo.pdf | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11583/2817260