ISOTROPIC-KINEMATIC HARDENING MODEL FOR ELASTIC-PLASTIC CYCLIC STRUCTURAL ANALYSIS

This report outlines the use of a combined isotropic-kinematic hardening theory to analyze structures undergoing large reversals of plastic strain. The numberical work is based on the finite element method, and a suitable incremental stress-strain relation of combined hardening theory of plasticity is implemented; the theory requires only minor additions to the more common kinematic or isotropic hardening rules. The report shows how the required parameters describing the kinematic and istropic portions of the combined hardening theory can be extracted from cyclic mechanical portions of the combined hardening theory can be extracted from cyclic mechanical tests. The theory is used to determine the cyclic response of a mild steel beam. The uniaxial arbitrary cyclic behaviour of mild steel is very accurately modeled by a series of spring-slider elements.

• Corporate Authors:

  Army Construction Engineering Research Laboratory

  P.O. Box 4005
  Champaign, IL  United States  61820
• Authors:
  • McNamara, J F
  • SHARMA, S K
• Publication Date: 1975-8

Media Info

• Features: Figures; References;
• Pagination: 16 p.

Subject/Index Terms

• TRT Terms: Concrete hardening; Deformation curve; Elastoplasticity; Finite element method; Hardness; Isotropic materials; Kinematics; Mild steel; Structural analysis
• Uncontrolled Terms: Elastic plastic analysis; Steel beams
• Old TRIS Terms: Isotropic mass
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00127199
• Record Type: Publication
• Report/Paper Numbers: CERL-TR-M-148 Final Rpt.
• Contract Numbers: 4A161102AT23-02-004
• Files: TRIS
• Created Date: Dec 16 1975 12:00AM