TIME-DEPENDENT RESPONSE AND FRACTURE OF PLAIN CONCRETE BEAMS. FRACTURE OF CONCRETE AND ROCK: RECENT DEVELOPMENTS. PAPERS PRESENTED AT THE INTERNATIONAL CONFERENCE, UNIVERSITY OF WALES, COLLEGE OF CARDIFF, SCHOOL OF ENGINEERING, SEPTEMBER 20-22, 1989

Preliminary investigations using small, concrete beam specimens precracked in three-point bending, are being conducted to obtain data on deformation and crack growth versus time up to fracture. These experiments and associated analysis demonstrate three kinds of creep behavior. One type is the usual creep deformation and fracture which has three components: initial, non-linear time response; linear time response; non-linear response to fracture. Another is that during the linear time response stage, "jump" changes at regular time intervals occur. The third type is similar to the first except that the final non-linear response to failure does not occur. Results to be presented include load ratio versus creep fracture time, time-effects on deformation, and a proposed, approximate mechanism for time-dependent crack growth and fracture.(A) For the covering abstract of the conference see IRRD 829348.

  • Availability:
  • Corporate Authors:

    Elsevier Science Publishers

    Crown House, Linton Road
    Barking, Essex IG11 8JU,   England 
  • Authors:
    • Lui, Z-G
    • Swartz, S E
    • Hu, K K
    • Kan, Y-C
  • Publication Date: 1989

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00605993
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 1-85166-414-9
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM