AN INSTABILITY THEORY OF FAILURE FOR CONCRETE

A simple mathematical model is proposed in which the failure of concrete under uniaxial compression is attributed to the instability which develops in the macro-elemental structure formed by cracking. The model predicts that there is a critical fracture length which is, with the ultimate stress, dependent upon factors such as size of specimen and longitudinal stress gradient which have previously only been explained by statistical strength theories. The model predictions are compared with the experimental evidence available. /Author/TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00249831
• Corporate Authors:

  Cement and Concrete Association

  52 Grosvenor Gardens
  London SW1W 0AQ,   England 
• Authors:
  • Uppal, J Y
  • KEMP, K O
• Publication Date: 1973

Media Info

• Features: Figures; References;
• Pagination: p. 21-30
• Serial:
  • MAGAZINE OF CONCRETE RESEARCH
  • Volume: 25
  • Issue Number: 82
  • Publisher: Thomas Telford Limited
  • ISSN: 0024-9831

Subject/Index Terms

• TRT Terms: Compression; Concrete; Failure; Forecasting; Fracture mechanics; Highway grades; Instability; Mathematical models; Statistical sampling; Stresses
• Uncontrolled Terms: Longitudinal gradient; Sample size; Uniaxial compression
• Old TRIS Terms: Failure theory
• ITRD Terms: 5522: Buckling; 5532: Compression; 4755: Concrete; 5211: Cracking; 5520: Failure; 132: Forecast; 5567: Load; 6473: Mathematical model; 5930: Stability; 5575: Stress (in material)
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways; Materials;

Filing Info

• Accession Number: 00083201
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: ITRD, TRIS, USDOT
• Created Date: Jul 2 1979 12:00AM