Commit Graph

12638 Commits

Author SHA1 Message Date
Philip Eisenlohr 7e78932976 renamed "mpie_cpfem_init" subroutine within mpie_interface module to more general name "mpie_interface_init" 2010-06-08 09:35:13 +00:00
Christoph Kords 71c6179ee5 dislocation stress had wrong sign in some components 2010-06-08 09:34:23 +00:00
Christoph Kords 3ce1882d29 when calculating dislocation stress at grain boundaries, densities are now extrapolated similarly to like it was already done at free surfaces 2010-06-07 16:01:37 +00:00
Christoph Kords 3989cc2688 dislocation stress now considers dislocation segments of length V^(1/3) and ensures non-singular solution for points that are collinear to the dislocation line by means of a core spreading parameter "a". stress is scaled by a reference cutoff radius "r" to avoid mesh-dependent stress values.
corrected formula for conversion of anisotropic elastic constants to isotropic Youngs modulus and poissons ratio
2010-06-07 14:32:23 +00:00
Franz Roters 5283ba5546 if it is pReal it should be 1.0 not just 1 2010-05-31 07:12:45 +00:00
Philip Eisenlohr c1fed9d197 polishing of verbosity 2010-05-28 16:05:16 +00:00
Christoph Kords 76b392e12f dislocation stress calculation in constitutive_nonlocal_microstructure: corrected mapping from lattice to slip system frame and the neighboring dislocation density formulation 2010-05-28 13:12:36 +00:00
Philip Eisenlohr 0d69623b74 grpmf... 2010-05-27 14:32:16 +00:00
Philip Eisenlohr 89f09ed784 use testMe in this subdir to check for compilation errors. 2010-05-27 14:31:04 +00:00
Philip Eisenlohr 920bccc556 single IP, reduced integration element for 3D 2010-05-26 17:30:16 +00:00
Franz Roters bb73a74325 there was a line break missing so that it did not compile 2010-05-26 17:10:26 +00:00
Denny Tjahjanto 9932c90c73 restoring the crystallite.f90, IO.f90 and material.f90 to the version 575. the version 576 of these files contain some uncleared debugging statements. 2010-05-26 16:34:44 +00:00
Denny Tjahjanto d114a600c3 fixed some errors in QuaternionToEuler, RToQuaternion to get the correct texture representation in the output. 2010-05-26 15:52:54 +00:00
Christoph Kords e5f0af638e fixed calculation of dislocation stress for elements with a single ip and no neighbors; used to get segmentation fault 2010-05-26 09:17:10 +00:00
Christoph Kords 0c5bc83469 in nonlocal_microstructure: at the model surface the excess density is now extrapolated from opposite neighbor instead of assuming zero density; this results in better modeling of the dislocation stress at the surface
restructured nonlocal_dotstate, to be able to easily switch on and off particular effects in the microstructure evolution
nonlocal_dotstate now enforces a cutback when single density runs the risk of becoming negative; in the case of a state already below the relevantState dotState is set to zero
introduced two new output variables: rho_dot_edge and rho_dot_screw
2010-05-21 08:51:15 +00:00
Christoph Kords dba4ae7ef1 new numerics parameter "defgradTolerance" replaces "relevantStrain" in cpfem, since "relevantStrain" is also used in crystallite but in a different context.
"defgradTolerance" gets the same standard value as "relevantStrain" so calculations should be consistent with older ones
2010-05-20 14:55:11 +00:00
Christoph Kords 3a23dc4bbd first call to hypela2 in inc 0 is done with computation mode 2 (=plain calc), but since rev. 539 the second call was done with computation mode 6 (=only return values) instead of 2. This doesnt work, because computation mode 2 might calculate stress and tangent for all materialpoints, but the mapping from lattice to current configuration is only done for the element/IP that triggers the call.
So switched back to the former order of calls which also works for marc2010:

el 1 IP 1		|	el 1 IP 2
			|
inc mode lovl	|	inc mode lovl
------------------	|	------------------
0       2       6	|	0	2	6
1       6	4	|	1	6	4
1	4	6	|	1	3	6
1	6	4	|	1	6	4
1	1	6	|	1	2	6

Still to be checked:
according to Franz the lovl order could be different in contact analysis (e.g. starting with lovl 4 instead of 6)
2010-05-20 09:14:59 +00:00
Christoph Kords 51da3b6242 sorry, in rev 568 some variables were not declared in crystallite_postResults 2010-05-18 12:36:09 +00:00
Christoph Kords 472684c30e make element type 8 (= hex8 reduced integration) available for nonlocal constitutive law 2010-05-18 08:13:23 +00:00
Christoph Kords 19b6fae88b added a missing exclamation mark in front of an $OMP directive 2010-05-18 08:07:55 +00:00
Christoph Kords d96780967b added some output variables in crystallite: F, Fe, Fp, Ee, P, S 2010-05-18 07:57:13 +00:00
Claudio Zambaldi 15328e51cf Like this Euler angles AND grain rotation should be OK. 2010-05-11 15:06:21 +00:00
Franz Roters 483584ceb3 improved version of general I/O functions
renamed module cpfem_interface to mpie_interface
2010-05-11 06:57:15 +00:00
Franz Roters e810e5cfa1 changed fileopen routines in IO.f90 to use solver dependant functions defined in the interface routines
DID NOT test ABAQUS versions yet, not shure whether (V)GETOUTDIR returns path with or without terminating slash
2010-05-10 15:02:59 +00:00
Philip Eisenlohr 0416c9a616 reworked build_ipNeighborhood
added C3D8R reduced integration hexahedral element
2010-05-10 14:54:59 +00:00
Claudio Zambaldi 2405a51042 crystallite:
- grainrotation calculation now is done with symmetryID 0, i.e. without symmetry reduction since we want the absolute misorientation.
- While math has everything in radians, post results eulerangles and axisangle are given in degrees.
And: grain rotation seems OK after the previous changes in math module.
2010-05-07 12:01:46 +00:00
Philip Eisenlohr 97f206d0bc new errors regarding Spectral method input file parsing
mesh setup from Spectral input file
$Id$ in FEsolving activated
2010-05-06 16:40:47 +00:00
Philip Eisenlohr 5a0963fb81 added variable working dir (if apply_script is called from somewhere else) and made the script executable
why using "comp_user?*" instead of "comp_user*" ?? (@Franz...)
2010-05-06 14:17:53 +00:00
Philip Eisenlohr e4067f2d26 debugged zoo of rotation operations and transformations
all angles now in radians

introduced a rudimentary check in math_init to complain (IO_error) about broken transformations (e.g. quat --> R --> quat)
2010-05-06 14:07:21 +00:00
Franz Roters 4954228b3a forgot to change this file accordingly (main.msb revmoved) 2010-05-06 13:19:45 +00:00
Franz Roters f1950cacc9 corrected apply script
removed binary menu file, it is now created by the apply script
2010-05-06 13:17:28 +00:00
Franz Roters f23b4d16d1 updated section with dislotwin paramters 2010-05-06 09:01:54 +00:00
Franz Roters 383a36b226 added comment on reformating to common block files
added modifications necessary for running the subroutine with Marc/Mentat2010
2010-05-06 08:50:54 +00:00
Alankar Alankar 393a67e587 now stating instance when sanity checks run into trouble 2010-05-05 13:36:59 +00:00
Claudio Zambaldi 1ee5df41fd Sorry, that was the wrong file, now the correct one... 2010-05-04 17:34:51 +00:00
Claudio Zambaldi 48c554811b A simple one-element model that you can use to try out changed code before commits. Hopefully, the start of a testing suite. 2010-05-04 17:32:17 +00:00
Christoph Kords 0a36527f61 fixed bugs in math_quaternionDisorientation
though running, there still seem to be some problems with the quaternion functions, since crystallite_grainRotation gives some dubious results!
2010-05-04 16:02:05 +00:00
Philip Eisenlohr ba48e5d3ab fixed syntax errors in last commit -- hopefully no further ones... 2010-05-04 13:03:35 +00:00
Philip Eisenlohr cecffffe2b disorientation with symmetryType == 0 returns plain misorientation
complain about unknown symmetryType
2010-05-04 12:54:13 +00:00
Claudio Zambaldi adaeb0e1ef rotation axis is undefined for small angles and therefore gets a NaN 2010-05-03 18:27:19 +00:00
Philip Eisenlohr 9a257fb68b moved "UserOutput" into figures of Manual 2010-04-29 15:31:40 +00:00
Philip Eisenlohr 2494da8f51 moved Manual to its own folder.
set up include sub-structure.

based on KOMA-script book class and heavily borrowing from Wiley book recently written.
2010-04-29 15:28:29 +00:00
Christoph Kords ea718573ef return 180° disorientation about 100 for neighbors with different phases 2010-04-29 12:28:51 +00:00
Christoph Kords 8ab101da50 safe use of acos function in math_QuaternionToAxisAngle 2010-04-29 10:33:39 +00:00
Philip Eisenlohr 15e5dcf8f2 math_QuaternionToAxisAngle now safe for small or close to 2pi rotations. 2010-04-29 10:01:09 +00:00
Franz Roters e8719cb6b8 Table driven input works wirh 2010!
That leaves DDM to do for tomorrow ;-)
2010-04-29 09:43:31 +00:00
Claudio Zambaldi b7b2b4e9c3 small bug fix. 2010-04-29 09:42:50 +00:00
Claudio Zambaldi 9e2396ffc8 Documentation now with all files 2010-04-29 09:12:20 +00:00
Claudio Zambaldi c744c01ec9 Here is a suggestion for a manual to the CPFEM code. Please remember to add any solved problems to the troubleshooting section... 2010-04-29 09:10:47 +00:00
Franz Roters aaf1bf0edf fixed (first) problem with Marc2010 single job with old style input and extended precision should work now! 2010-04-29 08:15:29 +00:00