TY  - CHAP
ID  - eprints1948
N1  - 19° Convegno Nazionale del Gruppo Italiano Frattura, Milano, Italy, 2-4 July 2007
T2  - IGF 19: Atti del XIX convegno nazionale del Gruppo Italiano Frattura 
EP  - 224
Y1  - 2007///
AV  - none
TI  - Are the Paris' law parameters dependent on each other?
UR  - http://eprints.imtlucca.it/1948/
SN  - 9788895940199
PB  - Gruppo Italiano Frattura
A1  - Carpinteri, Alberto
A1  - Paggi, Marco
SP  - 217
N2  - 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
ER  -