COUPLED FIELD DAMAGE DYNAMICS VIA HAMILTON'S PRINCIPLE

摘要

We present a new coupled-field model for the dynamics of systems with evolving damage. The continuum model is developed using Hamilton's Principle together with Griffith energy arguments, and captures the interaction between a meso-scale damage field variable and macroscopic vibrational displacements. The method of averaging is used to show that the nonau-tonomous coupled-field model gives the autonomous Paris' Law as a special case.