FRACTOMECHANICS PARAMETER CALCULUS USING THE DISCRETE ELEMENT METHOD

Authors

  • LUIS EDUARDO KOSTESKI EDUARDO JOSE KOSTESKI
  • IGNACIO ITURRIOZ JUAN ITURRIOZ
  • RICARDO BARRIOS D'AMBRA LUIS BARRIOS D'AMBRA

Abstract

THE FRACTOMECHANICS PARAMETER CALCULUS USING COMPUTATIONAL NUMERICAL METHODS IS STILL AN ACTIVE AREA OF INVESTIGATION. TRADITIONALLY, THE MOST EMPLOYED METHODS ARE THE FINITE ELEMENT METHOD (FEM) AND THE BOUNDARY ELEMENT METHOD (BEM). THE DISCRETE ELEMENT METHOD (DEM) IS ANOTHER ALTERNATIVE, ALTHOUGH ITS USAGE IS NOT SO EXTENDED IN THE SOLID MECHANICS AREA. DEM SUCCESS IN THE SIMULATION OF FAILURE MECHANISMS AND DEFECT NUCLEATION MOTIVATES ITS IMPLEMENTATION IN FRACTURE MECHANIC PROBLEMS. IN ORDER TO EXPLORE ITS POTENTIALITIES IN THIS KIND OF PROBLEMS, THIS WORK PRESENTS THE STATIC AND DYNAMIC FRACTOMECHANICS PARAMETER CALCULUS OF A MODELED PLATE WITH DEM. FOR THIS PURPOSE THE NUMERICAL METHODOLOGIES USED ARE THE SAME AS THE ONES EMPLOYED IN THE TRADITIONAL NUMERICAL METHODS, SUCH AS FEM AND BEM, AS WELL. THE OBTAINED RESULTS, COMPARED WITH THE NUMERICAL AND ANALYTICAL RESULTS PUBLISHED BY OTHER AUTHORS, ALLOW THE VALIDATION OF DEM FOR SUCH APPLICATIONS WHERE THE FRACTURE PROCESS MUST BE DOUBTLESSLY TAKEN INTO ACCOUNT.

Author Biographies

LUIS EDUARDO KOSTESKI, EDUARDO JOSE KOSTESKI

DOCTORANDO PROMEC UFRGS

IGNACIO ITURRIOZ, JUAN ITURRIOZ

PROFESSOR PROMEC UFRGS

RICARDO BARRIOS D'AMBRA, LUIS BARRIOS D'AMBRA

PROFESSOR FI UNNE

Published

2010-02-23

Issue

Section

Articles