Crack detection by means of static and dynamic simulations with a crack contact model.

FERNANDO BUEZAS; MARTA B. ROSALES; CARLOS P. FILIPICH

Venezia, Italy

Congreso; 8th. World Congress on Computational Mechanics (WCCM8) and 5th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2008); 2008

International Association for Computational Mechanics (IACM) and the European Community on Computational Methods in Applied Sciences (ECCOMAS)

Most of the methods to detect a crack in beam-like structures are based on linear one-dimensional models. Evidently these approaches are not straightforwardly applicable to structures such as beams or arcs with an open crack or a breathing crack without or with contact. The present study deals with bi and tri-dimensional models to handle the statics or dynamics of an structural element (with an arbitrary shape) with a transverse breathing crack. The crack is simulated as a notch or a wedge with a unilateral Signorini?s contact model. The contact may be partial or total. All the simulations are carried out using the general purpose finite element code FlexPDE.