Mechanics of strain gradient plasticity with particular reference to decomposition of the state variables into energetic and dissipative components


Voyiadjis G. Z. , Deliktas B.

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, vol.47, pp.1405-1423, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47
  • Publication Date: 2009
  • Doi Number: 10.1016/j.ijengsci.2009.05.013
  • Title of Journal : INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
  • Page Numbers: pp.1405-1423
  • Keywords: Strain gradient plasticity, Energetic, Dissipative, Micro, Nano, Strengthening, Hardening, SINGLE-CRYSTAL PLASTICITY, DEPENDENT YIELD STRENGTH, DISLOCATION DYNAMICS, SMALL-DEFORMATION, ANISOTROPIC VISCODAMAGE, THERMODYNAMIC FRAMEWORK, VISCOPLASTIC APPROACH, NONLOCAL ELASTICITY, BOUNDARY-CONDITIONS, BURGERS VECTOR

Abstract

The results of recent studies on strengthening and hardening mechanisms for micro/nano structured materials indicate that the use of only one type of energetic or dissipative description may be insufficient to accurately describe the size effects exhibited in metallic components. Therefore, it is important to incorporate more than one description of the thermodynamic processes into the modeling in order to have a better understanding of the hardening and strengthening mechanisms for micro/nano structured materials.