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Showing 1 to 3 of 3 for “"napkin ring"”.
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Shear fatigue of adhesively bonded frictional interfaces in high-strength steel
… The experimental method is based on the modified napkin ring specimen, which involves a bonded annular contact interface subjected to a well-defined and uniform stress state of constant normal stress and alternating shear stress. Experiments are used to identify the fatigue failure processes in …
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Comparing In Situ and Bulk Constitutive Properties of a Structural Adhesive
… performance. In situ testing was performed on a napkin-ring specimen loaded in both tension and torsion. Stress-strain relationships in both shear and normal were developed and bulk and in situ adhesive performance was compared. Observations from testing were: 1. Bulk shear and in situ shear …
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The selection of adhesives and composite matrix resins for aircraft repairs
… and more cheaply than the thick adherend or napkin ring tests usually advocated. From the results obtained it was possible to suggest specifications for both composite matrix resins and adhesives for making bonded metal or composite joints. These should lead to the development of better …