DEVELOPMENT AND IMPLEMENTATION OF TIME-DEPENDENT CRACKING MATERIAL MODEL FOR CONCRETE. FINAL REPORT

Minimizing thermal cracking in mass concrete continues to be a concern for the U.S. Army Corps of Engineers. Thermal cracking is due to the restraint of volume change due to hydration, shrinkage, and creep. The prediction of stresses, strains, and cracking at early times presents special problems because many of the properties of concrete depend on the degree of hydration of the cementitious materials. To better model the time-dependent properties and response of mass concrete, a time-dependent cracking material model was developed for use in a general-purpose heat-transfer and structural analysis finite element code. The model includes the effects of time and temperature on compressive strength, elastic modulus, and creep. An interactive strain-driven, stress-modified cracking criterion based on the smeared-crack approach is included. Examples of calibration and verification of the model are included.

  • Corporate Authors:

    U.S. Army Waterways Experiment Station

    Structures Laboratory, 3909 Halls Ferry Road
    Vicksburg, MS  United States  39180-6199
  • Authors:
    • Garner, S B
    • Hammons, M I
  • Publication Date: 1991-4

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 120 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00611020
  • Record Type: Publication
  • Report/Paper Numbers: Tech Rept SL-91-7, WU 32260
  • Files: TRIS
  • Created Date: Jul 31 1991 12:00AM