Improvement of a Cycle J Integral for CT Specimens
1986 ◽
Vol 108
(3)
◽
pp. 521-524
◽
Keyword(s):
The cycle J integral formula for CT specimens has been improved as follows: ΔJ=(2/Bb)(α1•U + α2•ΔP•Δδ) + (2/Bb)Ue−1.2025a/w + 0.6233 for 0.3≤a/w≤0.53; ΔJ=(2/Bb)(α1•U + α2•ΔP•Δδ) + (2/Bb)Ue−0.02 sin[(π/0.23)(a/w−0.53)] for 0.53<a/w<0.95. This formula is applicable to the fatigue crack propagation range of 0.3≤a/w<0.95. In comparison with other formulae of the cycle J integral, the application range of the above expression is enlarged and its accuracy is also increased to a certain extent.
Keyword(s):
1979 ◽
Vol 101
(2)
◽
pp. 162-167
◽
2003 ◽
Vol 69
(680)
◽
pp. 758-765
Keyword(s):
Keyword(s):
Keyword(s):
1989 ◽
pp. 467-488
◽
Keyword(s):
2003 ◽
Vol 2003.2
(0)
◽
pp. _GSW0461-1-_GSW0461-6
Keyword(s):
2004 ◽
Vol 261-263
◽
pp. 1307-1312