Finite-Element Analysis of Fluid-Structure Interaction in a Blast-Resistant Window System
Publication: Journal of Structural Engineering
Volume 136, Issue 3
Abstract
This paper describes the development of a finite-element model capable of representing a blast-resistant flexible window (flex window) system developed by the Air Force Research Laboratory/Airbase Technologies Division. Computational fluid-structure interaction finite-element simulations are used to develop an improved understanding of the manner in which fluid phenomena, such as air compression and flow, affect the behavior of the flex-window system under blast loading. Compressible airflow interacting with a flexible thin-shell structure of the flex window (transient air-window panel interaction phenomena) is found to significantly influence system performance. The influences of shock wave propagation and fluid venting inside the damping chamber of the flex-window system are quantified and the influences of such phenomena on panel deflections, deformations, and internal forces are presented.
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Acknowledgments
This study was made possible by research funding provided by the Research Laboratory at Tyndall/Airbase Technologies Division (Contract No. UNSPECIFIEDBAA-TYN-03-001). Suggestions provided by Dr. Ian Do of Livermore Software Technology Corporation regarding analysis of fluid-structure interaction are also appreciated.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 136 • Issue 3 • March 2010
Pages: 297 - 306
Copyright
© 2010 ASCE.
History
Received: Jun 30, 2008
Accepted: Aug 13, 2009
Published online: Sep 2, 2009
Published in print: Mar 2010
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