VISCOPLASTIC PROBLEMS IN ONE DIMENSION

Abstract

In this paper, the basic concepts of viscoplasticity are introduced by the consideration of one-dimension situation, viscoplasticity theory allows the modelling of time rate effects in the plastic deformation process. Thus after initial yielding of material the plastic flow, and the resulting stresses and strains, are time dependent. Such effects are always present to some degree in all material. All the essential features of viscoplasticity can be demonstrated. Finally the solution process is coded in MATLAB.