New formulation of metallic materials constitutive models by an energy approach

An Energy Approach Applied to Define Elasto-Plastic Constitutive Models Describing Thermomechanical Metallic Materials Behavior During Forming Processes

“…After a short presentation of the problem formulation, it is described a more general mathematical formulation of the metals constitutive models with the consideration of dynamic softening phenomena (restoration and recrystallizations) through the above mentioned energy approach [4][5]. It is demonstrated that in certain special cases, linked only to work hardening for example, the expressions of usual laws van be obtained and, conversely, the constitutive equations known as energy formulations can be expressed from the classical formulations i.e.…”