Assessment of the quality of adhesive bond in t-joints coupons by using thermoelastic stress analysis

Rosa De Finis; Davide Palumbo; Umberto Galietti

doi:10.1117/12.2558607

23 April 2020 Assessment of the quality of adhesive bond in t-joints coupons by using thermoelastic stress analysis

Rosa De Finis, Davide Palumbo, Umberto Galietti

Proceedings Volume 11409, Thermosense: Thermal Infrared Applications XLII; 114090G (2020) https://doi.org/10.1117/12.2558607
Event: SPIE Defense + Commercial Sensing, 2020, Online Only

Abstract

Adhesively bonded joints represent an interesting alternative to mechanical joints due to the advantages over conventional mechanical fasteners: continuity of the structure, high strength-to-weight ratio, design flexibility. The aim of this work is to assess and predict the quality of aeronautical adhesive bonded CFRP T-joints made by the automated fibre placement process by means of the Thermoelastic Stress analysis (TSA) technique used as non-destructive technique. The results provided by TSA technique, in terms of debonded area, were compared to the well-established lock-in thermography technique showing the capability of TSA to evaluate the quality of T-joints. The approach allows to perform a cost-efficient characterisation process by means of non-destructive evaluations.

Conference Presentation

Citation Download Citation

Rosa De Finis, Davide Palumbo, and Umberto Galietti "Assessment of the quality of adhesive bond in t-joints coupons by using thermoelastic stress analysis", Proc. SPIE 11409, Thermosense: Thermal Infrared Applications XLII, 114090G (23 April 2020); https://doi.org/10.1117/12.2558607

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