a4584fecd2
potential driving force for conservative cahn hilliard vacancy diffusion
2014-11-25 20:13:33 +00:00
20437b2ae0
added brittle(elastic energy release rate)/ductile(vacancy condensation) phase field damage model coupled to vacancy concentration
...
simplified vacancy_generation
2014-11-25 17:23:37 +00:00
65b22f9a40
calculate analytic jacobian from xxx0 and not xxxsub0
2014-11-25 17:20:52 +00:00
e6edc3d8cd
Some sanity checks
2014-11-25 13:20:12 +00:00
296146490f
changed some default parameters for FEM
2014-11-21 14:20:54 +00:00
3d4b2d2f52
tolerance for damage can be any positive value. Set to 0.001 if found negative.
2014-11-21 13:12:54 +00:00
ee1d409bad
critical shear can be set to zero for family not in use.
2014-11-21 09:03:54 +00:00
9e6ab9866f
Read in TRIP inputs, changed 'totalvolfrac' to 'totalvolfrac_twin'
2014-11-21 08:54:20 +00:00
36c2cc4347
added some sanity checks in damage modules.
2014-11-20 13:48:07 +00:00
f538469892
reverted name change: In current PETSc release, its DM_ instead of DMDA_!
2014-11-19 05:35:10 +00:00
73a13ddffc
added more comments
2014-11-18 15:36:17 +00:00
b3a96d40c5
Started adding TRIP model to phenopowerlaw
2014-11-18 10:46:02 +00:00
23d68114e3
cleaned up stress integrations and some documentation
2014-11-13 12:53:20 +00:00
b407e6ac80
complement of pore nucleation.
2014-11-12 17:55:02 +00:00
fc9f4835c3
switched order of Lp-Li nesting in stress integration loop for better convergence. temperature is integrated during stress integration so it need not be a dot state
2014-11-12 16:40:50 +00:00
e89199d119
correction to thermal velocity gradient
2014-11-11 23:14:45 +00:00
7567582781
updated constitutive in line with changes to damage
2014-11-11 22:46:41 +00:00
5ff3c882b5
thermodynamically consistent treatment of nonlocality over all damage models. switched from power law to exponential with viscous drag type rate formulation for damage evolution
2014-11-11 22:44:11 +00:00
f0f04a25bf
Pore nucleation, and the decrease of vacancy concentration due the formation of pores.
2014-11-11 16:03:06 +00:00
e0e0f1503b
svn properties for new files
2014-11-07 20:55:16 +00:00
9544fe55a6
FEM solver for vacancy diffusion
2014-11-07 20:40:54 +00:00
eb1028eb6f
dislokmc coupled to ductile damage
2014-11-07 12:28:18 +00:00
646f632977
no need to pass fileunit during init of none types
2014-11-07 12:15:28 +00:00
c4e54793fc
missing factor of 2 in damage driving force
2014-11-07 12:10:10 +00:00
dc0745800f
reworked anisotropic brittle damage
2014-11-07 12:08:56 +00:00
69b150319f
fully introduced non-schmid behavior
2014-11-07 11:23:34 +00:00
eee863956f
added flush(6) for debugging
2014-11-06 21:05:35 +00:00
4fcd1821cf
reworked anisotropic ductile model
2014-11-06 17:52:43 +00:00
9c474796ac
cleaning up and meaningful renaming
2014-11-06 17:41:34 +00:00
a72a9ed8ec
Add the generation rate of vacancy induced by dislocation movement.
2014-11-06 16:53:34 +00:00
29951a9e1a
named 99 representation according to other constitutive laws
2014-11-06 11:49:37 +00:00
b443ac6321
nicer preprocessor statements
2014-11-06 11:47:27 +00:00
95ec8b7b7b
removed imported module variables that are not longer needed, commented loops and simplified calculation for rates, i.e. do not store per system anymore but only once
2014-11-06 08:27:48 +00:00
1242aab2bf
unified calculation for slip rate for output to avoid doubling of code
...
introduced calculation of negative and positive stress (three times in the code) for non-schmid behavior.
Still, non-schmid behavior is not active at all
2014-11-05 20:53:25 +00:00
6fc3908c71
prepared for merging postResults rate calculation in one loop
2014-11-05 19:39:23 +00:00
f3b7b5bb96
corrected substraction by volume fraction of twin for LpAndItsTangent and removed the substraction in postResults (like for dislowtin)
...
cleaned up and unified notation in calculation of slip rates
2014-11-05 19:11:09 +00:00
accb571c53
corrected substraction by sum of twinned and transformed value fraction of Lp and derivative.
...
removed unused variables
2014-11-05 17:52:49 +00:00
a61c3059ef
missing file in previous commit
2014-11-05 17:47:46 +00:00
f2211260e3
introduced possibly nonlocal anisotropic ductile damage model
2014-11-05 17:41:08 +00:00
94ba7e6246
added accumulated shear as a dot state for cleaner integration with ductile damage models
2014-11-05 17:07:31 +00:00
ade918246c
reduced number of state variables. some cleaning up
2014-11-05 17:05:40 +00:00
a21f4d80db
removed some leftovers of the shearbanding part
2014-11-05 09:53:08 +00:00
c2799585d9
introduced non schmid tensor calculation in dot state, also not active yet
2014-11-05 09:35:49 +00:00
c66fc95dda
made a bunch of arrays simple scalars to improve readability, commented loops
2014-11-05 09:24:08 +00:00
816169fbec
continued work on integration of non schmid behavior. not active yet
2014-11-05 09:03:04 +00:00
18b49fbac8
line in OMP statement too long
2014-11-04 21:32:16 +00:00
e36880e3dc
fixed typo 'orthorhombic'
2014-11-03 15:41:05 +00:00
76442942b1
damage def grad updated in stress integration loop and not as a dot state
2014-11-03 10:43:36 +00:00
0ad917dceb
nicer FEM parameters
2014-11-03 10:36:07 +00:00
261bffa745
switched to smoother traction separation law for better convergence. anisotropic brittle now working.
...
lowered default max iterations for FEM
2014-11-01 17:51:35 +00:00
Pratheek Shanthraj