Abstract
An elastoplastic behavior of uniform bars with initial deflection under opposite tension loads at ends has been already reported in previous reports 1 and 2. The present paper treats the comparison of this case with the well known case where an initially deflected uniform bar is subjected to central compression loads at ends, pointing out differences between these two cases, as follows. In case of tension the bending moment first rises to a maximum value, afterward reduces gradually and then converges to an ultimate state where the bending moment is reduced to naught, while the axial force keeps its value. Contrary to this, in case of compression the buckling occures, the axial force reaches its maximum value and then the axial force gradually reduces up to an ultimate state where the balancing axial force becomes naught, while the bending moment takes its maximum value.
