SHEAR WAVES IN PLANE INFINITE STRUCTURES

A NUMERICAL PROCEDURE IS DEVELOPED FOR THE DYNAMIC ANALYSIS OF PLANE, LINEARLY ELASTIC SYSTEMS CONSISTING OF AN IRREGUALR ZONE JOINED TO SEMI-INFINITE LAYERED ZONES. ALL EXICITING FORCES ARE ASSUMED TO BE HARMONIC AND PERPENDICULAR TO THE PLANE OF THE STRUCTURE. THIS IMPLIES THAT ONLY SHEAR WAVES (SH-WAVES) ARE GENERATED AND THAT NO DISPLACEMENTS OCCUR IN THE PLANE OF THE STRUCTURE. THE METHOD EMPLOYS A FINITE ELEMENT ANALYSIS OF THE IRREGULAR ZONE OF THE STRUCTURE. THE EFFECT OF THE SEMI-INFINITE LAYERED ZONES IS ACCOUNTED FOR BY BOUNDARY CONDITIONS DEVELOPED FROM A NEW DISCRETE THEORY FOR STANDING AND PROPAGATING LOVE WAVES IN LAYERED SYSTEMS. THE METHOD IS USED TO EVALUATE THE SCREENING EFFECT OF A TRENCH AND THE ACCURACY OF A CURRENTLY USED METHOD TO PREDICT THE MOTION OF A FOUNDATION SUBJECT TO GROUND INDUCED VIBRATIONS. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339399
• Supplemental Notes:
  • Vol 98, No EM1, PROC PAPER 8716, PP 85-105
• Authors:
  • LYSMER, J
  • Waas, G
• Publication Date: 1972-2

Media Info

• Serial:
  • Journal of Engineering Mechanics
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9399
  • EISSN: 1943-7889
  • Serial URL: http://ascelibrary.org/journal/jenmdt

Subject/Index Terms

• TRT Terms: Analysis; Dislocation (Geology); Elastic waves; Forecasting; Foundations; S waves; Screens; Structural analysis; Structures; Trenches; Vibration
• Uncontrolled Terms: Love waves
• Old TRIS Terms: Layered system mechanics; Vibrating screens
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209613
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 17 1972 12:00AM