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Periodic Material Based Seismic Isolation for Small Modular Reactors

[+] Author Affiliations
Y. Yan, W. Witarto, Y. L. Mo

University of Houston, Houston, TX

S. J. Wang, K. C. Chang

National Center for Research on Earthquake Engineering, Taipei, Taiwan

Y. Tang

Argonne National Laboratory, Argonne, IL

M. Ruis

Electric Power Research Institute, Charlotte, NC

Paper No. PVP2015-45301, pp. V008T08A041; 5 pages
  • ASME 2015 Pressure Vessels and Piping Conference
  • Volume 8: Seismic Engineering
  • Boston, Massachusetts, USA, July 19–23, 2015
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5703-8
  • Copyright © 2015 by ASME


The concept of periodic materials, based on the theory of solid-state physics, is applied to earthquake engineering. The periodic material is a material that possesses distinct characteristics that prevent waves with certain frequencies from being transmitted through it; therefore, this material can be used in structural foundations to block unwanted seismic waves with certain frequencies. In this paper, small modular reactor with one dimensional and three dimensional periodic foundations were studied. The theoretical band gaps of one-dimensional (1D) and three-dimensional (3D) periodic foundations were obtained using transfer matrix methods and finite element method, respectively. The dynamic response of the small modular reactor supported by a periodic foundation to that of conventional concrete foundation was compared. It is showed that the periodic foundations are an effective way to reduce the seismic response of small modular reactors (SMR) under seismic excitations.

Copyright © 2015 by ASME



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