%P 10-16
%T Are the Paris? law parameters dependent on each other?
%I Gruppo Italiano Frattura
%V 2
%X The question about the existence of a correlation between the parameters C and m of the
Paris? law is re-examined in this paper. According to dimensional analysis and incomplete self-similarity
concepts applied to the linear range of fatigue crack growth, a power-law asymptotic representation relating
the parameter C to m and to the governing variables of the fatigue phenomenon is derived. Then, from the
observation that the Griffith-Irwin instability must coincide with the Paris? instability at the onset of rapid
crack growth, the exponents entering this correlation are determined. A fair good agreement is found between
the proposed correlation and the experimental data concerning Aluminium, Titanium and steel alloys.
%D 2007
%L eprints1949
%A Alberto Carpinteri
%A Marco Paggi
%K Fatigue crack growth, Paris? law parameters, Correlation, Dimensional analysis, Griffith-Irwin instability.
%R 10.3221/IGF-ESIS.02.02
%J Frattura ed Integrit? Strutturale