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Tip-Over Simulation of Degraded Dry Storage Structures

[+] Author Affiliations
Masoud Dehghani Champiri, Arezou Attar, Mohammad Hanifehzadeh, Kaspar J. Willam, Bora Gencturk

University of Houston, Houston, TX

Paper No. IMECE2015-50832, pp. V009T12A006; 3 pages
doi:10.1115/IMECE2015-50832
From:
  • ASME 2015 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids
  • Houston, Texas, USA, November 13–19, 2015
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5752-6
  • Copyright © 2015 by ASME

abstract

Concrete dry cask structures may be degraded due to environmental aging before they are encountered to hypothetical events. In this paper, first long term behavior of dry cask structures including creep and shrinkage is investigated numerically using COMSOL. Subsequently, the findings of the first part of the study are implemented into LS-DYNA to perform a crash analysis. Two cases including full bond and no bond between concrete cask and steel liner are compared. The results show shear transfer and significant damage in the interfacial region of the concrete cask and steel liner in the case of full bond, and large inelastic deformations far beyond the strain level for tensile cracking and compressive crushing of concrete.

Copyright © 2015 by ASME

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