Follower Force Experiments With Geometric Non-Linear Coupling for Analytical Validation

<p>This study was a follow-up of a previous study where static deflection data of a joined-wing test article was collected from a series of experiments using a laser scanner and a laser tracker while the test articles were subjected to follower-forces. One of the goals of this study was to collect accurate experimental data which could be used to validate analytical methods such as geometrically exact beam theory which are used to predict the nonlinear response of joined-wings. The load application system used on the previous study was not able to provide a follower-force on the test articles and therefore the loads were not representative of what the joined-wing would experience under more realistic loading conditions. The test articles used for the experiments are the qualification model and the joined-wing model. The qualification model is simply a thin aluminum beam which is 72 in long 8 in wide and 0.5 in thick and the joined-wing model is made up of two aluminum beams which are similar in dimension to the qualification model and are joined at the tip. The qualification model was used mainly for validating the experimental procedures in preparation for the actual experiment on the joined-wing model.</p><p>This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact and remains as true to the original work as possible. Therefore you will see the original copyright references library stamps (as most of these works have been housed in our most important libraries around the world) and other notations in the work.</p><p>This work is in the public domain in the United States of America and possibly other nations. Within the United States you may freely copy and distribute this work as no entity (individual or corporate) has a copyright on the body of the work.</p><p>As a reproduction of a historical artifact this work may contain missing or blurred pages poor pictures errant marks etc. Scholars believe and we concur that this work is important enough to be preserved reproduced and made generally available to the public. We appreciate your support of the preservation process and thank you for being an important part of keeping this knowledge alive and relevant.</p>