Wyszukiwarka
Abstrakt
This paper describes an experimental arrangement to evaluate stress/strain fields in the process zone of asymmetric adhesively bonded joints. A transparent polycarbonate flexible beam was bonded to an aluminium alloy rigid block with an epoxy adhesive in a Single Cantilever Beam (SCB) configuration. The flexible adherend was loaded in the direction parallel to the initial crack front at constant rate. To monitor strains induced by bending and shear along the beam, electric strain gauges were attached to the upper surface of the flexible adherend. Thus strain distribution was measured above the bonded surface, which could be used to monitor crack propagation and investigate stress redistribution in the process zone. A Timoshenko beam lying on a Pasternak elastic foundation model was used for the analysis of experimental findings. Subsequently, the Digital Image Correlation technique was used to measure the flexible substrate in-plane displacement field in the vicinity of the crack front and to assess the specimen kinematics. We found that strain gauge instrumentation of the fracture mechanics specimen was a very sensitive technique for experimental analysis of crack propagation under complex loading, offering fine investigation of stress distribution in the cohesive zone.
Autorzy (3)
Cytuj jako
Pełna treść
pełna treść publikacji nie jest dostępna w portalu
Słowa kluczowe
Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
-
THEORETICAL AND APPLIED FRACTURE MECHANICS
nr 56,
strony 13 - 21,
ISSN: 0167-8442 - Język:
- angielski
- Rok wydania:
- 2011
- Opis bibliograficzny:
- Budzik M., Jumel J., Shanahan M.: Process zone in the Single Cantilever Beam under transverse loading. - Part II: Experimental// THEORETICAL AND APPLIED FRACTURE MECHANICS. -Vol. 56, nr. iss. 1 (2011), s.13-21
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 119 razy
Publikacje, które mogą cię zainteresować
An in situ technique for the assessment of adhesive properties of a joint under load
- M. Budzik,
- J. Jumel,
- M. Shanahan
Instrumented end notched flexure - Crack propagation and process zonemonitoring Part II: Data reduction and experimental
- M. Budzik,
- J. Jumel,
- N. Ben Salem
- + 1 autorów