Abstract
Progressive fracture in quasi-brittle materials such as concrete, rocks, soils, is often treated as strain softening in continuum damage mechanics. Such constitutive relations favour spurious strain localization and ill-posedness of boundary value problems, and call for some kind [...]
Abstract
We have devised a crack-tracking methodology for general crack paths in elasto-damaging materials based on the regularized extended finite element method. The resulting procedure is in-between nonlocal models, where the discontinuity surface is replaced by a finite width zone, and [...]