Numerical Simulation Of Crack Bifurcation Under Fatigue Loading
Author(s)
X.-B. Zhang, N. Recho, S. Ma & J. Li
Abstract
Numerical simulation of crack bifurcation
under fatigue loading
X.-B. Zhang, N. Recho, S. Ma & J . Li
Laboratoire d'Etudes et de Recherches en Me'canique des Structures,
Blaise Pascal University of Clerrnont-Ferrand, France
Abstract
Most crack growths are due to fatigue loading. However, in practice, it is
difficult to carry out a numerical modelling of fatigue crack growth because of
the presence of the plastic zone near the crack tip. So in this paper, a simplified
numerical method considering the effect of cyclic loading is proposed. This
method aims to simulate the fatigue crack growth under mixed mode loading and
to take into account the hardening behaviour of the material at the crack tip.
Using this method, a series of numerical calculations by the finite element
method of the mixed mode crack growth are carried out. In order to compare the
results of the proposed method and those of existing methods, a special cracked
specimen subjected to different mixed mode loads is analysed. The cra
Keywords
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