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
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
c34c07a6ff
statedamper has to be local (specific for each e,i,g); with a global damping we may produce spurious convergence
2010-04-29 07:41:29 +00:00
77dc16d15f
print aged state of 1 1 1, which always exists, to avoid segmentation fault
2010-04-29 07:34:20 +00:00
79f286f24c
small typo
2010-04-28 17:45:30 +00:00
0b83fa0fb2
corrected (?) disorientation calc and introduced some new assisting functions
2010-04-28 17:19:58 +00:00
35cebfb132
extended output string length for init msg
2010-04-28 17:19:06 +00:00
a36951a6ac
changed common block files to release version
2010-04-28 07:28:12 +00:00
e8ab495a6c
Introduced new parameter NaN, not a number. It should be assigned for invalid results, such as currently for misorientation of unknown crystal symmetry.
2010-04-19 13:40:22 +00:00
cab2261693
New array crystallite_symmetryID(i,g,e) is now filled during initialization run with 1 for bcc and fcc phase and 2 for hexagonal phase. The values are needed for misorientation calculations to apply the correct symmetry operators for cubic and hexagonal phases.
2010-04-19 10:03:34 +00:00
249042c2d3
New output can be requested from crystallite:
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(output) grainrotation
it gives the deviation from the initial grain orientation
in axis-angle representation with the angle in degrees.
2010-04-12 11:14:36 +00:00
653837046e
new: math_QuaternionToAxisAngle
2010-04-12 11:07:25 +00:00
adf6206b71
corrected symmetry operations for hex.
2010-04-12 08:04:26 +00:00
fc3f35cf3b
debugger = .false.
2010-04-08 09:30:25 +00:00
1730a90e12
corrected ip numbers in FE_ipNeighbor for element type 21; used to get wrong neighborhood for this element type
2010-04-06 11:45:23 +00:00
9b5047c828
corrected two OMP CRITICAL terminations
2010-04-06 06:47:15 +00:00
1bf740eb9d
an allocation statement was deleted from rev 518 to rev 520!!!
2010-03-30 13:15:18 +00:00
67c523e4b1
enclosed output statements in an "if (verboseDebugger)"
2010-03-25 08:27:42 +00:00
9026cc4016
again corrections. but this version must work.
2010-03-24 16:23:21 +00:00
414050303b
forgotten: the change in the input config
2010-03-24 13:28:46 +00:00
40b1478dac
the latest RGC model + corrections for "element homogeneous" feature
2010-03-24 13:20:12 +00:00
3aa2dd5fef
removed special characters from twip steel section in material.config
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changed crirtical twin stress in constitutive_dislotwin.f90
2010-03-24 08:17:27 +00:00
2c6c8fa04e
ensure positive eulerangles in math_QuaternionToEuler
2010-03-19 16:11:53 +00:00
f4e5d32cde
added flag verboseDebugger to debug in order to have more control about debugging statements
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set this to true if you want extended debugging info in the output file
2010-03-19 14:14:08 +00:00
418bb9ecbe
small improvement in readability
2010-03-19 12:56:00 +00:00
948c119ee9
changed internal representation of orientation and misorientation from euler angles to quaternions (this should also fix some bugs in the math_misorientation subroutine). includes a couple of new functions in math.f90 and some changes in crystallite.f90.
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beware that crystallite output "orientation" now by default returns the orientation as quaternion. if you want euler angles instead, you have to add "eulerangles" as a crystallite output in your material.config file (see material.config template).
for input of orientations in the texture block of the material.config you still have to specify the rotation in terms of euler angles, quaternions are not yet supported for input.
2010-03-18 12:23:17 +00:00
e6fdfdfc36
iJacoStiffness belongs to numerics, not debug
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sorry for not having checked that before
2010-03-17 17:00:54 +00:00
1a992e1aef
nonlocal stiffness calculation produced segmentation fault for cycle number > 16. Corrected calculation of perturbation indices k and l.
2010-03-10 09:53:41 +00:00
e3dd7551dc
added output for dislocation evolution rate associated with flux: "rho_dot_flux"
2010-03-10 09:49:40 +00:00
4752bbe42e
deleted unused <global> part from file
2010-03-09 15:36:07 +00:00
61bd0224c1
- corrected an if statement in the state loop
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- nonlocal stiffness calculation: we perturb all material points at the same time, so instead of N^2 loops we just need N
- set "forceLocalStiffnessCalculation" to false as standard
2010-03-04 17:27:39 +00:00
a0d28ebc18
- flux calculation is now also compatible to neighborhood of local constitution
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- flux density interpolation now depends on the position of the interface between ttwo neighboring material points
- simplified flux calculation scheme
- introduced sanity check for dislocation velocity to ensure v*dt< cellsize
2010-03-04 17:14:47 +00:00
947af80a2e
removed old debugging statements
2010-02-26 12:02:49 +00:00
8c8ed34356
reworked crystallite part to allow for flexible user output
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--> new "crystallite" part in config file
--> new "crystallite" option for microstructures
--> new output file "...job.outputCrystallite" to be used in conjunction with marc_addUserOutput for meaningful naming of User Defined Vars.
2010-02-25 17:39:11 +00:00
538faecf45
new output "dislocationvelocity"
2010-02-23 17:23:07 +00:00
c1717329ac
only need 2 logicals in crystallite_stressAndItsTangent to reflect all possible integration states, so crystallite_onTrack was obsolete and replaced by crystallite_todo; broken state update now directly produces a cutback
2010-02-23 09:46:39 +00:00
7526a24a1b
now with functionality to output a "JOB.outputHomogenization". This contains size descriptions of all requested output variables to be parsed by a further script to generate meaningful names for user defined vars... (watch out!)
2010-02-19 18:03:16 +00:00
aab5598d96
detabbed file for better readability
2010-02-19 13:44:38 +00:00
8c5852dedf
corrected messed up output of grain orientation in t16-file.
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this bug affected at least all calculations done after revision 480 (Dec 18, 2009)
2010-02-18 16:09:45 +00:00
e9aac0c4af
(1) change phaseOfGrain from real to integer and (2) introducing a condition to switch off the grain reshuffling when element homogeneous is requested.
2010-02-18 15:54:10 +00:00
d60d8a4103
small readability improvement
2010-02-18 15:06:08 +00:00
7e632e8132
corrcected definition of forceLocalStiffnessCalculation
2010-02-18 14:43:40 +00:00
e1a25e0f73
renaming of abaqus to _std and adding of VUMAT interface for explicit.
2010-02-18 10:23:42 +00:00
af06e8e58f
fixed some dangerous constructs in computation mode assignments
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introduction of separate stress and stiffness variables to pass on to CPFEM_general (of dimension 6)
2010-02-18 10:23:02 +00:00
78808a7d47
corrected corrupted header $id
2010-02-18 10:18:15 +00:00
4cb7254a21
added new computation modes 8 and 9 for Abaqus_exp. These correspond to mode 1 and 2 but do collection and calculation in one step.
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stress and stiffness are always of dimension 6 in CPFEM_general, hence, variable "ngens" useless by now
2010-02-18 10:15:08 +00:00
c3cd75c2c2
small polishing
2010-02-18 10:12:45 +00:00
9c63005c8f
allow for longer pathes when openening files
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corrected error messages concerning file openening
2010-02-18 08:29:57 +00:00
97db70cf23
constitutive_nonlocal:
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- reworked contribution of immobile dislocation density for rate equations
- flux is now calculated on the basis of interpolated velocities and densities at the interface; both incoming and outgoing fluxes are considered, so every material point only changes his own dotState
- dislocation velocity is now globally defined and calculated by subroutine constitutive_nonlocal_kinetics; the subroutine is called inside _LpAndItsTangent as well as _microstructure; therefore, microstructure now needs Tstar_v as additional input; in the future one should perhaps create a subroutine constitutive_kinetics that calls constitutive_nonlocal_kinetics separately, to clearly distinguish between microstructural and kinetic variables
- better use flux density vector as output variable instead of scalar flux values for each interface
- added output variables internal and external resolved stress
crystallite:
- added flag to force local stiffness calculation in case of nonlocal model
- misorientation angle is explicitly set to zero when no neighbor can be found
debug:
- added flag "selectiveDebugger" that is used when debugging statements should only affect a specific element, ip and grain; these are specified with the new variables debug_e, debug_i and debug_g
- debugger can now be used in its original sense
2010-02-17 13:21:36 +00:00
a2037db9c6
corrected sign of screw part of dislocation stress
2010-02-12 12:54:00 +00:00
Claudio Zambaldi