Title: Stress-Strain Relationship for Plain Concrete in Compression
Author(s): Domingo J. Carreira and Kuang-Han Chu
Publication: Journal Proceedings
Appears on pages(s): 797-804
Keywords: compression; compressive strength; initial tangent modulus; modulus of elasticity; plain concrete; secant modulus; stress-strain diagram; stress-strain relationships.
A general form of the serpentine curve is proposed to represent the complete stress-strain relationship of plain concrete in compression. The parameters that define the relationship are physically significant and can be estimated from empirical relationships or determined experimentally. Proposed equations fit a wide range of testing conditions and concretes for both the ascending and descending branches of the stress-strain diagram in compression. The conditions that should meet with an equation representing the stress-strain relationship and the effects of the testing conditions on the relationship are also discussed.