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
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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)
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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.
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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
9c94eb4be6
OMP bug fix from previous commit
2014-11-01 11:43:43 +00:00
Pratheek Shanthraj