0959ff3299
substituted hand written matrix inversion by LAPACK version with precision selection.
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also introduced check for inversion into DAMASK_spectral_Utilities.f90 for the stress BC calculation. This part is further improved by using 5% of the reference stiffness to avoid trouble in the fully plastic regime (where the stiffness is underestimated)
Test for Marc 2010 is updated because the new inversion give slightly different results near 0 (order of e-13)
2012-08-28 16:59:45 +00:00
ad7381cfdd
maximum relative step length in stress integration cannot decrease below 1
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intermediate tensor "A" is calculated only once before the Lp loop in "integrateStress"
2012-08-21 08:53:36 +00:00
c1c5941733
stressAndItsTangent:
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when winding forward to last substep in increment, also do the calculation if this substep is below "subStepMinCryst";
output of "wind forward" and "cutback" info only for crystallites that are still "todo"
integrateStress:
maximum component in Lp determines absolute convergence criterium:
aTol = max(maxLpComp * rTol_fromConfig , aTol_fromConfig)
this ensures that small values in Lp do not spoil the convergence, similar to the effect of the relevantStrain parameter before (not needed anymore in the stress integration)
2012-08-14 12:07:59 +00:00
4d09ef0648
changed variable name "debug_what" to "debug_level"
2012-07-05 09:54:50 +00:00
380f40561b
first calculation of Tstar still used hard coded Hooke, now usese constitutive_TandItsTangent(...)
2012-06-18 07:26:34 +00:00
fc7b4d6471
new function stateJump, which takes care of immediate changes in the state (deltaState); this introduces discontinuities in the state evolution; therefore this is always and only once done after each integration step, so no evaluation of deltaState for intermediate steps of e.g. the Runge-Kutta integrator; otherwise integration becomes a pain without significant gain in accuracy
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deltaState now successfully tested for nonlocal model; was not correct for integrators 1,4,5 before
2012-06-06 15:11:30 +00:00
8c849d62ee
small corrections for how to treat the new deltaState in FPI and euler integration; all integrators successfully tested with j2
2012-05-18 13:00:15 +00:00
abbae76c51
instantaneous jumps in the state by constitutive_deltaState are now incorporated for all state integrators. still they (should) not influence the result, since all constitutive laws simply return zero for the deltaState
2012-05-17 15:25:21 +00:00
a54439e3b5
dotState does not have to be reset to zero. this is a remnant from older versions when the dotState for the nonlocal model used to be updated by the neighboring integration point
2012-05-16 15:35:14 +00:00
7ee368f324
check whether there is any constitutive output
2012-05-11 07:38:20 +00:00
91a70b0fb3
before turning terminally ill report at which g,i,e crystallite did not converge
2012-03-30 13:16:45 +00:00
131c9ac93e
dPdF calculations made consistent with constitutive_TandItsTangent
2012-03-21 15:00:36 +00:00
8a2f2c5a95
stress iteration loop now uses generalized elasticity by calling TandItsTangent
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the anlalytical tangent calculation should now be adopted to also use TandItsTangent
2012-03-21 10:57:27 +00:00
c2f5cebacb
simplified analytic jacobian calculation. removed Lpfrac, time_sensitive. introduced rate_sensitivity flag when calling crystallite_stressAndItsTangent that is currently set to .false. and is to be set according to which dPdF the FE solver is asking for
2012-03-14 13:56:50 +00:00
c9ed989dad
replaced keyword constitution with plasticity in preparation of upcomming generalized elasticity
2012-03-12 14:09:37 +00:00
bd9667bd4b
added new, flexible debugging scheme.
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now all modules have their own debug specification.
compiles and runs, I hope nothing is broken
did a lot of polishing
2012-03-08 20:25:28 +00:00
17e9698659
added time_sensitive flag to ignore or add time sensitive component to analytic jacobian (should be close to perturbed jacobian when ignored)
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now uses sub_dt for analytic jacobian calculations
bug fixes
2012-03-01 19:42:43 +00:00
211f66a728
added elastic stiffness matrix as crystallite output
2012-03-01 13:06:09 +00:00
040e244993
Added stress-order terms to analytic stiffness
2012-02-27 17:40:28 +00:00
99d6dcecb5
fixed bug in calculation of analytic jacobian (should work much better now). parallelized analytic jacobian calculation loop
2012-02-24 14:07:46 +00:00
28d654d61e
forgot to remove some print statements in previous commit
2012-02-22 20:22:54 +00:00
b9a82156c9
crystallite.f90: can now calculate analytic jacobian by setting analyticJaco = 1 in numerics.config
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math.f90: added math_mul3333xx3333…
numerics.f90: to read in analyticJaco and Lp_frac
2012-02-22 20:11:09 +00:00
d68a3d1869
added LF=UNIX to a bunch of files
2012-02-22 13:30:00 +00:00
d8ffc29236
again: adding pInt, removing redundant use statments, chang in dble to real(,pReal)
2012-02-21 16:31:37 +00:00
6c0f9d163b
polishing: removed variable names like 'unit' and 'data' that are keywords of fortran and ensured that integer and real precision matches independent of machine standard.
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removed cut_off parameter for damask_spectral
removed outpot of derived divergence measures and added RMS output in brackets
added comments and options to the makefile
2012-02-15 18:58:38 +00:00
c786336af3
reordered (and partly redistributed) error message identifiers, deleted those which are not in use anymore.
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all constitutive as well numerics now raises an error, if an unknown keyword is found in the respective config file
2012-02-13 17:41:27 +00:00
94100e8d8e
missing line break
2012-02-13 15:21:03 +00:00
156ec4582a
polishing, adding _pInt etc. where applicable
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post_results now handels zero increment different (like FEM, it is always there even if it is not counted)
2012-02-13 14:18:07 +00:00
fa32a00d56
changed symmetryID initialization to integer (instead of float) value
2012-02-10 17:46:43 +00:00
e7d407c2f6
crystallite_Fp has to be initialized in crystallite_init, cause it is used by constitutive_microstructure
2012-02-03 14:52:09 +00:00
c5128e94eb
some f2008 standard related correction i didn't check in last time
2012-02-01 20:20:05 +00:00
800e291240
made code standard conform to Fortran 2008 (ignoring warning concerning comments beyond character 132). Basically, changing "x" format specifier to "Nx" ("1x") plus removing $ format specifier
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added compiler switches for gfortran and ifort to check for standard conformity
old gnu compilers <4.4 are not longer supported because they don't provide the c binding for fftw
2012-01-31 19:18:55 +00:00
80583fefb5
added compilation_info.f90, to store compilation date,time and compiler info in each file
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added #include statement at each init() routine
2012-01-31 14:54:49 +00:00
1330576a01
added new math function "math_deviatoric33" which returns the deviatoric part of a 3x3 tensor
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renamed some math functions, so that we have a universal naming scheme: for matrix multiplications use an "x" (e.g. math_mul33x3); don't use the "x" to describe the shape of the tensor that the function is applied to (e.g. math_invert33 instead of math_invert3x3)
2012-01-26 13:50:00 +00:00
6fec57bbd7
replaced variable fraction by "timefraction"
2012-01-26 12:48:59 +00:00
4980f57fd5
added total Green-Lagrange strain to crystallite outputs
2012-01-20 10:25:35 +00:00
8739b9522e
dislocation stress does not add to stress field anymore, but is only available as constitutive output for purposes of postprocessing. instead, we now use a backstress term (which is added to the resolved shear stress) that depends on the gradient of excess density on the same slip system.
2012-01-17 10:26:57 +00:00
a7d9d711f6
edited lines exceeding 132 chars (before any comment started)
2012-01-11 16:56:35 +00:00
5ebeb96e85
made DAMASK to work with gfortran:
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-removed to long lines
-restructured f2py modules and merged make_DAMASK2Python into setup processing
-setup_code.py now sets library path in makefile and asks for compile switches for spectral code
-substituted \ in format strings with $
restructured DAMASK_spectral:
-more logical output and structure of code
-better input for spectral debug parameters
2011-12-06 16:58:17 +00:00
9d1bc584d0
corrected stress integration scheme: now use norm(Lpresiduum) as a target function for Armijo's rule instead of whole tensor Lp; also corrected the guess for the improvement in Lp
2011-11-04 12:57:12 +00:00
ca3d21a3b6
Depending on which state integrator one uses for the stiffness calculation, the initial state has to be chosen accordingly: e.g. for FPI choose last converged state, but for explicit RK choose converged state from start of increment (in case of explicit euler no state integration at all, but only stress integration). For this purpose we also need to remember "Fe" which now follows the cutbacking procedure as it is used for "Fp".
2011-11-04 12:44:50 +00:00
c35ea33f8e
did a lot of polishing:
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- removed unnecessary "return" before end of subroutine or function:
- changed undetermined array length (:) to (1:3)
To prevent problems with some code analysing tools:
- "3D oneliner loops" (with ";) only for "do" and "enddo" at the same time
- removed line continuation in OMP statements
made the makefile more flexible, removed heap-arrays switch
2011-09-13 15:54:06 +00:00
b300cc7faa
ip volume is now based on the determinant of F. "mesh_ipVolume" represents the initial volume and is multiplied with det(F) wherever the current volume is needed. Since this works for all solver types, the "volume" output in crystallite is now also correct for spectral method and abaqus.
2011-08-19 11:18:56 +00:00
1ffb59a96a
Calculation of current ip volumes now working. Crystallite output also reflects current grain volume, not reference volume. However, this is only available for Marc. Abaqus and spectral method still return the reference ip volume. The ip coordinates though are correctly updated for all solver types.
2011-08-10 16:37:17 +00:00
ef7405fe21
Stress integration now uses Armijo rule to find an appropriate correction of Lp: decreases step in case that residuum does not improve significantly, accelerates as usual in case of good convergence. This turned out to improve convergence behavior.
2011-08-02 11:29:08 +00:00
75c67f53f7
introduced alternative location for material configuration.
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If present, the >>>JOB.materialConfig<<< file takes precedence over the standard >>>material.config<<<
2011-08-02 10:14:16 +00:00
564eb5009f
shape mismatch in crystallite, invalid names for variables(pos, size) in homogenization corrected. polishing of DAMASK_spectral_interface and makefile
2011-08-01 18:10:55 +00:00
a26d9c844b
max size of crystallite result is now based on actual use within the mesh, not just picking the largest chunk from the material.config file...
2011-06-08 09:16:48 +00:00
8041587a72
changed internal debug verbosity in accord with debug.config listing.
2011-06-06 15:27:35 +00:00
e5a2d829b0
new substructure with 'include' and 'config' directories
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renaming of mpie_... to DAMASK for main usersubroutines
extension of element outputs from 5 to 8 digits (FFT!!!)
2011-05-11 16:38:45 +00:00
Martin Diehl