INFLUENCE OF THE EXPERIMENTAL CONDITIONS ON THE FORMING LIMIT STRESS DIAGRAMS

  • BRABIE GHEORGHE
    UNIVERSITY OF BACĂU
  • PINTILIE GHEORGHE
    UNIVERSITY OF BACĂU

Abstract

The level and shape of the FLSD are dependent on many factors, which in principle should be the same with the factors that influence the FLD. These factors can be grouped as follows: • the material properties and parameters: work hardening coefficient, initial value of heterogeneity, initial anisotropy, a.s.o. • the experimental conditions: strain rate, strain paths, a.s.o. In this study, the influence of the experimental conditions and selected yield criterion are analysed.

Cuvinte cheie

forming limit stress diagram strain rate strain paths yield criterion.