An in situ technique for the assessment of adhesive properties of a joint under load - Publikacja - MOST Wiedzy

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An in situ technique for the assessment of adhesive properties of a joint under load

Abstrakt

Slow crack propagation in adhesive bonded joints has been characterised using an asymmetric wedge test. Crack position was evaluated from strain gauge measurements, both in the debonded partof the joint and in the bonded zone. Test temperature was changed during loading, giving insight into bond evolution. The technique allows accurate, and virtually continuous, determination of crack position to be made, and therefore the evaluation of crack speed versus fracture energy curves, as well as elastic propertiesof the adhesive layer. This technique also enables the monitoring of crack propagation in controlled environmental conditions to be performed, without interruption of exposure for measurements. By using a Winkler elastic foundation model to analyse results, the method seems to be the first to describe a process zone, or regionwhere the adhesive is significantly strained under load, and a finite length specimen effect,manifested by crack front acceleration during the final stage of the test. The method was found to offer great potential to study in situ fracture and bulk adhesive properties.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
INTERNATIONAL JOURNAL OF FRACTURE nr 171, strony 111 - 124,
ISSN: 0376-9429
Język:
angielski
Rok wydania:
2011
Opis bibliograficzny:
Budzik M., Jumel J., Shanahan M.: An in situ technique for the assessment of adhesive properties of a joint under load // INTERNATIONAL JOURNAL OF FRACTURE. -Vol. 171, nr. iss. 2 (2011), s.111-124
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s10704-011-9630-x
Weryfikacja:
Politechnika Gdańska

wyświetlono 28 razy

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