It is shown that it is possible to use a three-point method for the evaluation of tensile data for some ductile metals. The experimental data show also that average tensile stresses and axial tensile stresses along the axis of the specimens during the necking portion of a test remain linear functions of the effective strain. Prediction made by the use of an electronic calculation sheet and the use of a computer program yield results which are in substantial agreement with the experimental results. The three-point method would seem to reduce the experimental work necessary to obtain σ versus ε curves and apparently would permit higher testing speeds than those of ε ≈ 0.03 used in this investigation.

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