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Analysis and design of advanced composite bounded jointsAdvances in the analysis of adhesive-bonded joints are presented with particular emphasis on advanced composite structures. The joints analyzed are of double-lap, single-lap, scarf, stepped-lap and tapered-lap configurations. Tensile, compressive, and in-plane shear loads are covered. In addition to the usual geometric variables, the theory accounts for the strength increases attributable to adhesive plasticity (in terms of the elastic-plastic adhesive model) and the joint strength reductions imposed by imbalances between the adherends. The solutions are largely closed-form analytical results, employing iterative solutions on a digital computer for the more complicated joint configurations. In assessing the joint efficiency, three potential failure modes are considered. These are adherend failure outside the joint, adhesive failure in shear, and adherend interlaminar tension failure (or adhesive failure in peel). Each mode is governed by a distinct mathematical analysis and each prevails throughout different ranges of geometric sizes and proportions.
Document ID
19740012451
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Hart-Smith, L. J.
(Douglas Aircraft Co., Inc. Long Beach, CA, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1974
Publication Information
Publisher: NASA
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-2218
Accession Number
74N20564
Funding Number(s)
CONTRACT_GRANT: NAS1-11234
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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