Prediction of Fatigue Crack Propagation under Complex Loading using eN Parameters
Date Published: 2001-03-05
Paper Number:2001-01-4064
DOI: 10.4271/2001-01-4064
Citation:
Durán, J. and de Castro, J., "Prediction of Fatigue Crack Propagation under Complex Loading using eN Parameters," SAE Technical Paper 2001-01-4064, 2001, doi:10.4271/2001-01-4064.
Author(s):
Jorge Rodríguez Durán - Pontifical Catholic University of Rio de Janeiro
Jaime Tupiassú Pinho De Castro - Pontifical Catholic University of Rio de Janeiro
Abstract:
This paper presents an original approach to predict fatigue crack growth (FCG) under complex loading. Two FCG models based on damage accumulation by cyclic plasticity were developed with this aim. The crack growth is associated with the sequential failure of volume elements ahead of the crack tip, which is assumed to be caused solely by the cyclic plastic deformations induced by the loading. A complex random load history, counted by the sequential rain-flow method implemented in the
VIDA
2001 software, was used to test the models. Predictions of crack size increments based on the proposed models were compared with those obtained by the direct integration of the material's da/dN curve using the cycle by cycle method.
File Size: 447K
Product Status: In Stock
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