INVESTIGADORES
CISILINO Adrian Pablo
artículos
Título:
Boundary Element Analysis of Fatigue Crack Propagation Micromechanisms in Ductile Iron
Autor/es:
J. ORTIZ; A. P. CISILINO; J.L. OTEGUI
Revista:
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2001 vol. 25 p. 467 - 473
ISSN:
0955-7997
Resumen:
The Dual Boundary Element Method DBEM) is used in this work to model the micro mechanics of fatigue crack propagation in austempered ductile iron ADI). Emphasis is put in devising accurate procedures for the evaluation of the interaction effects between very close crack±microcrack arrays. Fracture parameters are computed via the so-called one-point displacement formula using special crack-tip elements. Crack propagation is modelled using an incremental crack extension analysis; with crack extensions calculated using a propagation law that accounts for the near-threshold regime. Obtained results are in agreement with experimental observations, providing evidence to fracture mechanics models proposed in the literature.
