Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
A BEM implementation for nonhomogeneous and anisotropic fracture mechanics
Submission Author:
Fernando Simionato , SP
Co-Authors:
Carlos Daros, Fernando Simionato
Presenter: Fernando Simionato
doi://10.26678/ABCM.COBEM2017.COB17-0873
Abstract
A traction based Boundary Element Method (BEM) formulation is presented for the mode III crack problem in exponentially nonhomogeneous anisotropic media. The traction Boundary Integral Equation (BIE) is strong singular and it is evaluated using the Shifted Point Method. The crack surfaces near the crack tips are discretized with special quarter-point boundary elements. The three main crack configurations, central crack, central slant crack, and edge crack are studied to determine the stress intensity factors (SIFs). Results for the homogeneous and isotropic case are compared with available solutions in the literature, showing excellent results. For the case of exponential nonhomogeneity, numerical results are obtained for weakly stiffer media and for softer media
Keywords
mode III crack, inhomogeneous media, traction BIE, Stress Intensity Factor, Shifted Point Method
