부산대학교 도서관

Summary: ``Strain gradient continuum damage modelling has been appliedto quasistatic brittle fracture within an approach based on a maximumenergy-release rate principle. The model was implemented numerically,making use of the FEniCS open-source library. The considered modelintroduces non-locality by taking into account the strain gradient inthe deformation energy. This allows for stable computations of crackpropagation in differently notched samples. The model can take wedgesinto account, so that fracture onset can occur at wedges. Owing to theabsence of a damage gradient term in the dissipated energy, the normalpart of the damage gradient is not constrained on boundaries. Thus,non-orthogonal and non-parallel intersections between cracks andboundaries can be observed.''