Ultrasonic non-destructive testing of complex titanium/carbon fibre composite jointsShow others and affiliations
2019 (English)In: Ultrasonics, ISSN 0041-624X, E-ISSN 1874-9968, Vol. 95, p. 13-21Article in journal (Refereed) Published
Abstract [en]
Ultrasonic inspection is widely used for non-destructive evaluation of composite adhesive joints. However, there are serious challenges in applying ultrasonic testing on metal to composite hybrid joints, because they are multi-layered, made out of dissimilar materials and relatively thin. The ultrasonic signals reflected by different layers are overlapped, scattered and attenuated. The aim of this research was to develop an ultrasonic inspection technique suitable for defect detection in hybrid metal to composite joints where the metal part has pin arrays, which entangle with the composite part. The immersion pulse echo technique was used to collect data. In order to overcome the problems related to the rough surface and non-parallel layers a novel signal post-processing algorithm for reconstruction of the joint area was developed and validated experimentally. It is shown that using the proposed technique the positions of different defects can be determined.
Place, publisher, year, edition, pages
Elsevier B.V. , 2019. Vol. 95, p. 13-21
Keywords [en]
Adhesive bonding, Hybrid joints, Non-destructive testing, Ultrasonic testing, Adhesive joints, Adhesives, Bridge decks, Dissimilar materials, Hybrid materials, Nondestructive examination, Titanium, Composite adhesive joints, Non destructive evaluation, Non destructive testing, Postprocessing algorithms, Ultrasonic inspections, Ultrasonic non-destructive testing
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-38532DOI: 10.1016/j.ultras.2019.02.009Scopus ID: 2-s2.0-85062445227OAI: oai:DiVA.org:ri-38532DiVA, id: diva2:1314317
Note
Funding details: Seventh Framework Programme, 310498; Funding text 1: The research leading to these results has received funding from the European Union Seventh Framework Programme under grant agreement n° 310498 ; project SAFEJOINT “Enhancing structural efficiency through novel dissimilar material joining techniques”.
2019-05-082019-05-082019-05-08Bibliographically approved