Abstract
The present study evaluates the Stress Intensity Factor (SIF) during the propagation of a crack interacting with a nearby circular dislocation. The problem is formulated using a numerical approach such as FEM along with the software (ABAQUS). The stress field and the SIF are determined for different crack's length. A brittle material such as a glass having an equivalent elasticity modulus and a Poisson rain this research work. Besides, the proposed model is a rectangular specimen with an edge crack subjected to tensile stresses according to the mode 1 opening. Obtained results are compared and agreed with those determined by other researchers.
Highlights
Evaluation of Stress Intensity Factor (SIF) during the interaction between a main crack and a surrounding circular inclusion in a brittle material is the principal objective of this research work
These stress fields are characterized by a SIF which enables us to evaluate the influence of the existing inclusion and its influence on the propagation of the main crack
Stress fields are found for various diameter of a circular inclusion located nearby a main crack
Summary
Evaluation of Stress Intensity Factor (SIF) during the interaction between a main crack and a surrounding circular inclusion in a brittle material is the principal objective of this research work. The problem of the interaction between the main crack and a surrounding circular dislocation is studied using a numerical approach which relies on the finite elements method (software ABAQUS). A change in the diameter of a circular inclusion has a large influence on the propagation of a crack by either amplifying or by reducing the intensity of the stress fields at its tip.
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