O'Reilly logo

Integrated Computational Materials Engineering (ICME) for Metals: Using Multiscale Modeling to Invigorate Engineering Design with Science by Mark F. Horstemeyer

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

3.2 KINETICS OF CRYSTAL PLASTICITY

The next important aspect of crystal plasticity is to include kinetics relations to the aforementioned kinematics and constitutive relations. A physically based description of the kinetics of slip relies on the theory of thermally activated dislocation motion [17–18]. In this theory, it is assumed that the resolved shear stress on the i-slip system can be additively decomposed as c03ue018, where c03ue019 and c03ue020 are the applied shear stresses needed to overcome the athermal (long range) and thermal (short range) barriers to dislocation motion. Similarly, the slip resistance (often referred to as slip system strength) is partitioned as c03ue021, where c03ue022 and c03ue023 represent the resistance of the athermal and thermal obstacles to dislocations gliding on the i-slip plane (R is chosen as the designator for isotropic hardening on the slip system to be consistent with the macroscale formulation ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required