|
|||||
 |
|
|
|
|
|
Flexure of beams with
an interlayer: symmetric beams with orthotropic adherends
K. S. Alfredsson, T. A. Bogetti, L. A. Carlsson, J. W. Gillespie, Jr. and A. Yiournas |
|
Vol. 3 (2008), No. 1, 45–62
|
Abstract |
|
Analysis of the three-point flexure loading of a symmetric beam configuration consisting of two identical adherends joined by a flexible layer is presented. A closed-form solution is presented in the form of a layer-wise approach, and shows excellent agreement with finite element results. Particular emphasis is given to the global beam compliance. The results show that a thin, shear deformable layer may effectively decouple the responses of the two beams. Furthermore, in contrast to ordinary beams, the presence of an overhang reduces the beam compliance. These effects are quantified and discussed. Experiments on aluminum adherends joined by a rubber layer were conducted over a range of overhang lengths in a three-point flexure fixture, and very good agreement between measured and predicted beam compliance was noted. |
Keywords
flexure, interlayer, shear deformation
|
Milestones
Received: 24 October 2006
Accepted: 7 May 2007
Published: 11 March 2008
|
Authors |
| K. S. Alfredsson | |
| University of Skövde S-541 28 Skövde Sweden |
|
| T. A. Bogetti | |
| Army Research Laboratory Aberdeen Proving Ground Aberdeen, MD 21005 United States |
|
| L. A. Carlsson | |
| Department of Mechanical
Engineering Florida Atlantic University Boca Raton, FL 33431 United States |
|
| J. W. Gillespie, Jr. | |
| Center for Composite Materials University of Delaware Newark, DE 19716 United States |
|
| A. Yiournas | |
| Dynamic Science Inc. DTSD Aberdeen, MD 21001 United States |
|
|
