Commit Graph

1799 Commits

Author SHA1 Message Date
Pratheek Shanthraj 82942d1618 bug fix for previous commit 2014-12-02 17:23:47 +00:00
Pratheek Shanthraj b796e46f98 residualStiffness is not just an FEM parameter 2014-12-02 17:17:35 +00:00
Pratheek Shanthraj 2fc264d90a forgot file in previous commit 2014-11-28 20:07:22 +00:00
Pratheek Shanthraj 37dd574790 recast power law and viscous dot state variables as derived quantities using analytical solutions of the evolution equation 2014-11-28 20:06:24 +00:00
Philip Eisenlohr 8d64e513da improved commenting and variable names.
values for unused slip/twin families are ignored in material.config (do not need to be numeric anymore…)
2014-11-26 21:23:02 +00:00
Tias Maiti f8b29bdaf0 fixed bug in type definition for ‘drivingForce’ 2014-11-26 18:40:31 +00:00
Pratheek Shanthraj 54de033c45 using analytic solution for local/nonlocal coupled damage (as opposed to having crystallite iterate to find a consistent solution) 2014-11-26 17:29:45 +00:00
Pratheek Shanthraj 61bb9a373e all damage models consistently semi-explicit 2014-11-26 11:32:50 +00:00
Pratheek Shanthraj 6e90260817 updated local damage post results for newer models 2014-11-26 11:32:19 +00:00
Pratheek Shanthraj a91ebafa0e semi-explicit damage evolution 2014-11-26 10:36:14 +00:00
Luv Sharma 646f1c48dc typo, IO_warning and not IO_error 2014-11-26 10:16:30 +00:00
Pratheek Shanthraj 9714a172d1 updated to get local damage from microstructure state 2014-11-26 00:42:20 +00:00
Pratheek Shanthraj c89ef9de61 relaxed some sanity checks 2014-11-26 00:29:54 +00:00
Pratheek Shanthraj 26c01f64e5 updated file list 2014-11-26 00:06:16 +00:00
Pratheek Shanthraj 32ee3a4a66 corrected constitutive_getVacancyPotentialDrivingForce function 2014-11-26 00:04:06 +00:00
Pratheek Shanthraj 36dc59b09f reverted back to rate independent damage evolution. updated example config files to recent changes 2014-11-25 23:56:52 +00:00
Pratheek Shanthraj a4584fecd2 potential driving force for conservative cahn hilliard vacancy diffusion 2014-11-25 20:13:33 +00:00
Pratheek Shanthraj 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
Pratheek Shanthraj 65b22f9a40 calculate analytic jacobian from xxx0 and not xxxsub0 2014-11-25 17:20:52 +00:00
Su Leen Wong e6edc3d8cd Some sanity checks 2014-11-25 13:20:12 +00:00
Pratheek Shanthraj 296146490f changed some default parameters for FEM 2014-11-21 14:20:54 +00:00
Luv Sharma 3d4b2d2f52 tolerance for damage can be any positive value. Set to 0.001 if found negative. 2014-11-21 13:12:54 +00:00
Luv Sharma ee1d409bad critical shear can be set to zero for family not in use. 2014-11-21 09:03:54 +00:00
Su Leen Wong 9e6ab9866f Read in TRIP inputs, changed 'totalvolfrac' to 'totalvolfrac_twin' 2014-11-21 08:54:20 +00:00
Luv Sharma 36c2cc4347 added some sanity checks in damage modules. 2014-11-20 13:48:07 +00:00
Martin Diehl f538469892 reverted name change: In current PETSc release, its DM_ instead of DMDA_! 2014-11-19 05:35:10 +00:00
Philip Eisenlohr 73a13ddffc added more comments 2014-11-18 15:36:17 +00:00
Su Leen Wong b3a96d40c5 Started adding TRIP model to phenopowerlaw 2014-11-18 10:46:02 +00:00
Pratheek Shanthraj 23d68114e3 cleaned up stress integrations and some documentation 2014-11-13 12:53:20 +00:00
Haiming Zhang b407e6ac80 complement of pore nucleation. 2014-11-12 17:55:02 +00:00
Pratheek Shanthraj 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
Pratheek Shanthraj e89199d119 correction to thermal velocity gradient 2014-11-11 23:14:45 +00:00
Pratheek Shanthraj 7567582781 updated constitutive in line with changes to damage 2014-11-11 22:46:41 +00:00
Pratheek Shanthraj 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
Haiming Zhang f0f04a25bf Pore nucleation, and the decrease of vacancy concentration due the formation of pores. 2014-11-11 16:03:06 +00:00
Pratheek Shanthraj e0e0f1503b svn properties for new files 2014-11-07 20:55:16 +00:00
Pratheek Shanthraj 9544fe55a6 FEM solver for vacancy diffusion 2014-11-07 20:40:54 +00:00
Pratheek Shanthraj eb1028eb6f dislokmc coupled to ductile damage 2014-11-07 12:28:18 +00:00
Pratheek Shanthraj 646f632977 no need to pass fileunit during init of none types 2014-11-07 12:15:28 +00:00
Pratheek Shanthraj c4e54793fc missing factor of 2 in damage driving force 2014-11-07 12:10:10 +00:00
Pratheek Shanthraj dc0745800f reworked anisotropic brittle damage 2014-11-07 12:08:56 +00:00
Martin Diehl 69b150319f fully introduced non-schmid behavior 2014-11-07 11:23:34 +00:00
Martin Diehl eee863956f added flush(6) for debugging 2014-11-06 21:05:35 +00:00
Pratheek Shanthraj 4fcd1821cf reworked anisotropic ductile model 2014-11-06 17:52:43 +00:00
Pratheek Shanthraj 9c474796ac cleaning up and meaningful renaming 2014-11-06 17:41:34 +00:00
Haiming Zhang a72a9ed8ec Add the generation rate of vacancy induced by dislocation movement. 2014-11-06 16:53:34 +00:00
Martin Diehl 29951a9e1a named 99 representation according to other constitutive laws 2014-11-06 11:49:37 +00:00
Martin Diehl b443ac6321 nicer preprocessor statements 2014-11-06 11:47:27 +00:00
Martin Diehl 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
Martin Diehl 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