Constitutive modeling of high-strain-rate deformation in metals based on the evolution of an effective microstructural length

A constitutive model for high strain rat

A constitutive model for high strain rate deformation in FCC metals based on irreversible thermodynamics

✍ Mingxin Huang; Pedro E.J. Rivera-Díaz-del-Castillo; Olivier Bouaziz; Sybrand van 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 289 KB

The present work extends a recent model for plastic deformation of polycrystalline metals based on irreversible thermodynamics. A general dislocation evolution equation is derived for a wide range of strain rates. It is found that there is a transitional strain rate ($10 3 s À1 ) over which the phon