SEISMIC WAVE PROPAGATION IN ELASTIC-VISCOPLASTIC SHEAR LAYERS

A computational method is introduced for simulating seismic wave propagation in elastic-viscoplastic shear layers. The fundamental dynamics are expressed by two partial differential equations for shear stress and velocity, the balance of momentum, and the elastic-viscoplastic constitutive law. They are converted to those for the upward and downward components of horizontally-polarized motion and then a finite difference method is applied. Seismic wave propagation is computed, considering the reflection and refraction rule at the contact boundary of two layers, as well as the boundary conditions at the bottom and top. Simulation analyses for the observed records show that the proposed method is effective and practical, although it cannot simulate liquefaction phenomena.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Yamada, K
• Publication Date: 2000-3

Language

• English

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 218-226
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 126
  • Issue Number: 3
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Algorithms; Deformation curve; Dynamics; Elastic waves; Elasticity (Mechanics); Finite differences; Hysteresis; Liquefaction; Momentum; Partial differential equations; S waves; Shear stress; Simulation; Soil mechanics; Viscoplasticity; Wave motion
• Geographic Terms: Japan
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00788967
• Record Type: Publication
• Contract Numbers: CMS-9309345, 32451-GS-ISP, 32708-AAS
• Files: TRIS
• Created Date: Mar 22 2000 12:00AM