Issue 39

A. Risitano et alii, Frattura ed Integrità Strutturale, 39 (2017) 202-215; DOI: 10.3221/IGF-ESIS.39.20 215 N OMENCLATURE  strain tensor   e elastic strain tensor   p plastic strain tensor  stress tensor  e elastic stress tensor  v viscoelastic stress tensor  vector of internal variables C  specific heat at  and  constants  c,i time constant  e ; external temperature  Helmholtz specific free energy  energy dissipation A vector of the dual forces of  D Eulerian strain rate tensor r e volumetric heat flux R Stress ratio (min stress/max stress)  is the material density.