Abstract
Tensile test which was conducted in Part 1 establishes the engineering stress-strain relationship, which is used in basic engineering problems. However, finite element (FE) techniques used for analysis of large displacement and deformation problems use the true stress-true strain of materials in its structural characterisation. The aim of the current research work is to develop a mathematical model for predicting full non-linear true stress-strain curves for locally obtained high yield steel rebars used in the construction industry in Nigeria. Ramsberg-Osgood and Rasmussen expressions are used in developing the true stress-true strain model. Parameters developed in Part 1 were used in the in obtaining the full range curves. Key words: Yield stress, true stress, true strain, finite element modelling, ultimate tensile strength.
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