DEVELOPMENT OF FRACTURE PROCESS ZONES IN CONCRETE

Concrete specimens have been tested in uniaxial tension using a closed loop servo-controlled testing machine. The combination of extension control and stiff testing frame has allowed stable failure to be achieved and the full post-peak portion of the load/extension relationship to be obtained. Full field surface strain of the specimen has been measured using Moire interferometry technique. The development of fracture process zones has been observed, together with their influence on the surrounding material. Localization in the strain field occurred before the attainment of the maximum load, with subsequent propagation during the post-peak portion of the load/extension relationship. It has been shown that the load/extension relationship obtained from a test is not a material property. A more appropriate method for describing the behaviour of fracture process zones is to relate the opening of the zone at a given location in the specimen with its stress transferring capacity. (Author/TRRL) (Author/TRRL)

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

  Thomas Telford Limited

  London,   United Kingdom 
• Authors:
  • RAISS, M E
  • Dougill, J W
  • Newman, J B
• Publication Date: 1990-12

Language

• English

Media Info

• Features: References;
• Pagination: p. 193-202
• Serial:
  • MAGAZINE OF CONCRETE RESEARCH
  • Volume: 42
  • Issue Number: 153
  • Publisher: Thomas Telford Limited
  • ISSN: 0024-9831

Subject/Index Terms

• TRT Terms: Concrete; Cracking; Deformation; Failure; Fracture properties; Physical properties; Structural analysis
• Uncontrolled Terms: Concrete properties
• Old TRIS Terms: Fracture index
• ITRD Terms: 4755: Concrete; 5211: Cracking; 5595: Deformation; 5520: Failure; 5575: Stress (in material)
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00623826
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Jul 31 1992 12:00AM