Effect of adhesive compliance in the assessment of soft adhesives with the wedge test - Publikacja - MOST Wiedzy

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Effect of adhesive compliance in the assessment of soft adhesives with the wedge test

Abstrakt

Wedge tests are usually analysed assuming that the free, unbonded members may be treated as encastré cantilever beams. However, if the adhesive layer is sufficiently flexible (e.g., due to low elastic modulus), then significant strain in the bonded region may occur and lead to modification of the behaviour outside this region. Using in conjunction a sensitive strain gauge method on asymmetric wedge tests and a mathematical analysis developed from the work of Winkler, we conclude that the standard, simple beam theory approach significantly overestimates crack length for a supple adhesive layer. The present contribution mainly considers strain effects in the intact, bonded zone, rather than fracture per se. However, it is concluded that,if in fracture tests, the incorrect values of crack length obtained from the encastré beam assumption are employed to calculate fracture energy using the simpler model, there will be some self-compensation and little error in estimates of the latter will result (at least in the cases presently studied).

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY nr 25, strony 131 - 149,
ISSN: 0169-4243
Język:
angielski
Rok wydania:
2011
Opis bibliograficzny:
Budzik M., Jumel J., Imielińska K., Shanahan M.: Effect of adhesive compliance in the assessment of soft adhesives with the wedge test// JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY. -Vol. 25, nr. iss. 1-3 (2011), s.131-149
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1163/016942410x501133
Weryfikacja:
Politechnika Gdańska

wyświetlono 14 razy

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