COMPOUND SIZE EFFECT IN COMPOSITE BEAMS WITH SOFTENING CONNECTORS. II: DIFFERENTIAL EQUATIONS AND BEHAVIOR

The first part of this study, presented in a companion paper in this journal issue (Part I), is an energy analysis of size effect. Part II gives a solution by integrating the differential equations of beam bending theory, coupled with a softening force-slip law for the interface. This analysis is more accurate than the previous energy analysis but does not yield simple explicit formulas for the size effect. The results generally support the simple conclusion from energy analysis. They do not disagree with the available limited experimental evidence; however, measurements of size effect in geometrically scaled composite beams seem unavailable. Further tests are needed.

  • Availability:
  • Supplemental Notes:
    • Various phases of this research were supported by the U.S. National Science Foundation (under Grants CMS-9713944 and INT-9531299 to Northwestern University, Evanston, Illinois), the Grant Agency of the Czech Republic (under Grant 103/99/0734), and the ACBM Center at Northwestern University.
  • Corporate Authors:

    American Society of Civil Engineers

    1801 Alexander Bell Drive
    Reston, VA  United States  20191-4400
  • Authors:
    • Bazant, Z P
    • Vitak, J L
  • Publication Date: 1999-11

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00779637
  • Record Type: Publication
  • Contract Numbers: N00014-94-1-0036, N00014-90-C-0031, F49620-95-1-0342
  • Files: TRIS
  • Created Date: Dec 10 1999 12:00AM