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SFCM 12/13 25: Mechanics for laminated composites

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Published on Jul 5, 2013

Lunes 20 de Mayo de 2013, a las 9:30 h.

DESIGN AND RELIABILITY OF HIGH-PRESSURE INFLATABLE PLUGS FOR TUNNEL PROTECTION

EVER J. BARBERO

COLLEGE OF ENGINEERING AND MINERAL RESOURCES - WEST VIRGINIA UNIVERSITY, USA

Inflatable structures are used for aeronautical, space, automotive, and civil applications, including balloons, space habitats, air bags, radomes, hangars, exposition venues, and so on. Most structures are unconstrained and inflated at low pressure. Novel applications, such as inflatable plugs for tunnel protection are inflated at high pressure, and their shape is constrained by the tunnel or other surroundings inside which they are inflated. The combination of high pressure and constrained boundary brings about unique challenges in the design of these structures.

This presentation includes a brief overview of the concept of tunnel protection. Then, it focuses on a novel design methodology specifically formulated for this type of structures, followed by the estimation of the reliability of the system. Material testing is touched upon in order to introduce the concept of variability of material properties and loads, which are crucial for the design and reliability estimation. In summary, a design approach is presented that allows not only for the rational design of the structure but also to estimate the reliability of the system.

Coordinador: Jose Ygnacio Pastor - jypastor@mater.upm.es, +34 91 336 6684

Vídeo producido por el Gabinete de Tele-Educación de la Universidad Politécnica de Madrid

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