Chapter
Apr 26, 2012
Impact Response of Elastic and Elastic-Plastic Sandwich Beams
Publication: Earth & Space 2006: Engineering, Construction, and Operations in Challenging Environment
Abstract
An original model for impact analysis of elastic-plastic sandwich beams is presented, and the effect of sandwich damping is uniquely introduced in the analysis by considering the gradient of beam compliance. By incorporating the compliance (or stiffness) and compliance gradient of the sandwich beams to the equation of motion of the projectile, the standard mass-spring model for the sandwich system is uniquely recovered. Both the elastic and elastic-plastic impact processes are analyzed and compared with elastic model of no sandwich damping effect. The proposed impact model is validated with the elastic finite element analysis using LS-DYNA. A parametric study on the influences of velocity and mass of the projectile on the impact response of elastic and elastic-plastic sandwich beams is conducted, and it reveals the significant contribution of the sandwich damping and plasticity to the impact response.
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Published In
Earth & Space 2006: Engineering, Construction, and Operations in Challenging Environment
Pages: 1 - 8
Copyright
© 2006 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Graduate Research Assistant and Ph.D. Candidate, Department of Civil Engineering, The University of Akron, Akron, OH 44325-3905. E-mail: [email protected]
Associate Professor, Department of Civil Engineering, The University of Akron, Akron, OH 44325-3905. E-mail: [email protected]
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.