A PLASTIC-SOFTENING MODEL FOR CONCRETE MATERIALS

A simple plasticity-based constitutive model for compressive softening of concrete materials is proposed. In this formulation, a damage parameter expressed in terms of the hydrostatic pressure is used to reflect the steep change of the stress-strain response under a low confining pressure and the gentler change of the responses under a high confining pressure. The necessary restriction required to avoid the possible contradiction between the loading criterion proposed for the softening behavior and the second law of thermodynamics for plastic deformation in the softening range is discussed.(a)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00457949
• Corporate Authors:

  Pergamon Press, Incorporated

  Headington Hill Hall
  Oxford OX30BW,    
• Authors:
  • OHTANI, Y
  • Chen, Wai-fah
• Publication Date: 1989

Language

• English

Media Info

• Pagination: p. 1047-55
• Serial:
  • Computers and Structures
  • Volume: 33
  • Issue Number: 1
  • Publisher: Elsevier
  • ISSN: 0045-7949

Subject/Index Terms

• TRT Terms: Concrete; Deformation; Finite element method; Loss and damage; Mathematical analysis; Mathematical models; Plasticity; Softening point
• ITRD Terms: 6471: Analysis (math); 4755: Concrete; 1614: Damage; 5595: Deformation; 6490: Finite element method; 6473: Mathematical model; 5922: Plasticity; 5272: Softening
• Subject Areas: Materials;

Filing Info

• Accession Number: 00498919
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM