Paper Title:
Automatic Cyclic Crack Propagation Calculations in Aircraft Engines
  Abstract

This document describes a mixed-element approach to perform mixed-mode crack propagation calculations in an arbitrary structure in a fully automatic way. In a preprocessing step a cylindrical volume about the crack front is meshed with hexahedral elements while the remaining parts of the structure at interest are filled with tetrahedrons. Subsequently, a finite element calculation is performed yielding the stress field at the crack tip. The postprocessor determines the stress intensity factors and the 3-dimensional crack growth, leading to a new crack front. This procedure is repeated until a user-defined criterion is reached. The method is illustrated by an aircraft casing component.

  Info
Periodical
Key Engineering Materials (Volumes 417-418)
Edited by
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
Pages
733-736
DOI
10.4028/www.scientific.net/KEM.417-418.733
Citation
G. Dhondt, D. Bremberg, "Automatic Cyclic Crack Propagation Calculations in Aircraft Engines", Key Engineering Materials, Vols. 417-418, pp. 733-736, 2010
Online since
October 2009
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Price
$32.00
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