Viscoplasticity with creep and plasticity bounds Academic Article uri icon


  • A viscoplastic theory is developed that reduces analytically to creep theory under steady-state conditions and becomes plasticity theory at its rate-independent bound. A viscoplastic model is then constructed by defining material functions that have close ties to the physics of inelasticity. As a consequence, this model is characterized easily - only steady-state creep data, saturated hysteresis loops, and monotonic stress/strain curves are required. The general applicability of the model is demonstrated by the characterization of three f.c.c. metals. A variety of validation experiments is also provided. © 1993.

author list (cited authors)

  • Freed, A. D., & Walker, K. P.

citation count

  • 73

publication date

  • January 1993