required to get the accurate value of parameter C and n of the Paris law. The
equation obtained can be used to calculate the life of the material.
11. The method developed is not related to any specific geometry. Therefore
it can be used for any kind of geometry and for any general anisotropic
material, to calculate mixed mode SIFs at the crack tip and therefore crack
growth rate and hence life of any material can be predicted.
12. Additional experimental data are required to study FCG on {111} plane,
(101) orientation. More data are needed in region II to get the accurate
result to predict lifing. Also experimental data for crack plane orientations
other than slip planes, e.g., (100), can be used to check the validity of the
model.
Possible Directions for Future Work are given below:
Incorporation of crack tip plasticity.
FCG testing under mixed mode loading for a wider range of specimen
geometries and orientations.
FCG testing at high temperatures.