The paper experimentally investigates hybrid interfaces pressurereinforced and bonded with anaerobic adhesive. While their static strength has been deeply investigated, their behavior up to complete failure lacks of a constitutive model. This work aims to assess the applicability of a simple model involving a cohesive law and a pure 10 friction law, in order to describe the interface behavior up to complete failure under different contact pressure levels. A systematic experimental campaign investigates the shear strength of cylindrical specimens butt-bonded and pressure reinforced over an annular surface. The tests involve two anaerobic adhesives and 15 four pressure levels. The experimental torque-rotation curves confirm that the strain energy up to complete failure is given by a cohesive term and a pure friction term, both of them linearly dependent upon the contact pressure.
Experimental investigation and model validation of the shear strength of hybrid interfaces up to complete failure / Castagnetti, Davide; Dragoni, Eugenio. - In: JOURNAL OF ADHESION. - ISSN 0021-8464. - STAMPA. - 92(7-9):(2016), pp. 679-697. [10.1080/00218464.2015.1115740]
Experimental investigation and model validation of the shear strength of hybrid interfaces up to complete failure
CASTAGNETTI, Davide;DRAGONI, Eugenio
2016-01-01
Abstract
The paper experimentally investigates hybrid interfaces pressurereinforced and bonded with anaerobic adhesive. While their static strength has been deeply investigated, their behavior up to complete failure lacks of a constitutive model. This work aims to assess the applicability of a simple model involving a cohesive law and a pure 10 friction law, in order to describe the interface behavior up to complete failure under different contact pressure levels. A systematic experimental campaign investigates the shear strength of cylindrical specimens butt-bonded and pressure reinforced over an annular surface. The tests involve two anaerobic adhesives and 15 four pressure levels. The experimental torque-rotation curves confirm that the strain energy up to complete failure is given by a cohesive term and a pure friction term, both of them linearly dependent upon the contact pressure.File | Dimensione | Formato | |
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