Dear friends
Do you know how to calculate the Taylor Factor for an individual grain?
If your know orientations of slip planes and related Burgers vectors for all potential slip systems (it should be the case if you fix the crystal orientation) and the tensor (matrix) of the given strain rate (or increment) //you may relate a Cartesian frame with the strain main axes and consider the crystal orientation in this frame//......
THEN you should try (one by one) possible selections (each of 5 geometrically independent slip systems) so that
5 partial strain rates by them equal the imposed (macro) strain rate. In each case it will give 5 simultaneous linear equation for related shear amounts and you can find them and eventually evaluate the sum of their magnitudes. Among all selections you should take those which give the least sum of shear magnitudes, let call it G. Then find the most main component of applied strain rate E (tension by default) and find T=G/E i.e what you asked for.
HOWEVER, even with shear minimization you will run into uncertainty i.e. necessity to randomly chose among eqviv. variants!! Anyway it will not affect your desired result.
MORE DETAILS on the procedures are in proper handbooks. Google around Taylor factor for the beginning.
Hi Hao Kun Yang
See answer in website PAGE 102
http://public.lanl.gov/lebenso/VPSC7c_manual.pdf
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science