Commit Graph

6735 Commits

Author SHA1 Message Date
Martin Diehl e80e055c75 added three small programs useful for spectral method (fortran sourececode)
voronoi fast.f90 and voronoi small memory.f90 are two variants to do a voronoi tessellation and write the result to a mesh file that can be interpreted by mpie_spectral.f90. Difference is the memory management resulting in one faster and one memory saving version. voronoi fast.f90 has also the ability to write out a file for Ricardo Lebensohns spectral code.
colormap.f90 is a simple code that can be used to generate colormaps for gmsh.
2010-10-31 16:06:10 +00:00
Christoph Kords 4c20daa00d state loop count was wrong for adaptive euler integration 2010-10-28 12:22:17 +00:00
Martin Diehl 17812c1f9e added raw output, gmsh output is still included 2010-10-27 17:15:49 +00:00
Christoph Kords 9320d48305 in RKCK45 state integration: dotState was not saved in last Runge-Kutta step 2010-10-27 08:48:04 +00:00
Philip Eisenlohr 74743c0856 little typo fixed... 2010-10-26 18:26:04 +00:00
Philip Eisenlohr 487466dd88 scripts are now aware of symbolic links to themselves... 2010-10-26 16:26:55 +00:00
Philip Eisenlohr 18344b4e65 forgot linebreaks and executable flag... 2010-10-26 15:32:03 +00:00
Philip Eisenlohr 5f64cacc74 generate alias in ~/bin for processing scripts 2010-10-26 15:02:20 +00:00
Christoph Kords f5f3ef5ecc * have to reset dotState to zero before call to collectDotState (only important for nonlocal calculation)
* in Fixed Point Iteration: update dependent states after state preguess was missing; on the other hand, the first call to constitutive_microstructure was obsolete
2010-10-26 14:04:33 +00:00
Christoph Kords 4439282239 no change to previous version, just forget to mention one important change of the last revision:
* fluxes are now again calculated and distributed only! by the originating material point. this means that the central MP might change the dotState of its neighbor. have to see whether locks slow down parallel computation
2010-10-26 13:49:58 +00:00
Philip Eisenlohr 5be6604fd6 included definitions of "material" and "geometry" properties after mesh generation... 2010-10-26 13:45:23 +00:00
Christoph Kords 62d06001ea * corrected compatibility for screws (always positive)
* detection of grain boundary in constitutive_nonlocal_microstructure with the help of transmissivity
* enforce positive densities in constitutive_nonlocal_microstructure (needed because dotState does not create cutbacks for negative densities anymore)
* reset single mobile densities below certain threshold to zero (also done in constitutive_nonlocal_microstructure)
* constitutive_nonlocal_kinetics only gets local state variable as input, no need for the entire array here
* dv_dtau is always positive
* multiplication is only active when there is already some initial density of the respective type
2010-10-26 13:42:18 +00:00
Christoph Kords 366d52bd71 * former "relevantRho" and "relevantResistance" is renamed to "atol_rho" and "atol_resistance" and now used as an absolute tolerance for the state residuum. before it was used rather as significant state, so whenever the state dropped below that value it was considered converged. (In dislotwin and titanmod constitutive law there is only one value atol_rho which is used for all the states, though the state array consists not only of densities. We need further parameters here!)
* somewhat simplified convergence check for adaptive euler and runge-kutta
2010-10-26 13:16:37 +00:00
Philip Eisenlohr d965f14f90 generate hexahedral mesh in Mentat based on a data file of Ricardo Lebensohn's "txfft" format (phi1, Phi, phi2, x, y, z, grainId, phaseId)
Only grainId is used, physical dimension and subdivisions need to be provided on command line.
improvement possible by parsing x, y, z columns to get those directly.
2010-10-25 17:57:57 +00:00
Martin Diehl 26cb618b6d changed calculation to small strain/cauchy stress 2010-10-20 11:27:10 +00:00
Martin Diehl da35eaa8a1 changed spectral algorithm to version proposed by Ricardo 2001 (using tau_field instead of stress_field).
Still using largestrain-formulation
2010-10-20 09:27:47 +00:00
Martin Diehl 3837dad51e fixed bug in mpie_spectral.f90 concerning spectral method (now deltaF hat get the right value)
added mpie_spectral2.f90, a version that should get the new algorithm proposed in 2010. until now, it is the same as mpie_spectral.f90 (large strain formulation by suquet et al) but with c2c, c2c FFT
2010-10-20 08:59:00 +00:00
Christoph Kords e49de75fe3 stiffness calculation now only needs a single function call to the respective integrator method instead of one call per grain (which seems to heavily slow down the computation). also no special treatment for non-local material points anymore. 2010-10-15 14:57:13 +00:00
Christoph Kords fffe731447 * had to correct nonlocal slip system compatibility and flux calculation. last update gave wrong results. 2010-10-15 13:19:26 +00:00
Philip Eisenlohr 61f8a5fcbe corrected UpperCase "SolidSolutionStrength" in config file parsing. 2010-10-15 12:59:00 +00:00
Martin Diehl 3c502561ee added matrix multiplication 3333x33 to math.f90
added some parameters for spectral method to numerics.f90 (tolerance)
changed error message concerning spectral method in IO.f90
corrected calculation of stress BC in mpie_spectral.f90
2010-10-13 16:04:44 +00:00
Christoph Kords 724960686f * in nonlocal model: dislocation flux now with valid description also for large angle grain boundaries; transfer of dislocations from one slip system to the other according to new variable "constitutive_nonlocal_compatibility" which depends on the angle between slip plane normals and slip directions and is updated once per cycle in function "crystallite_orientations"
* reactivated debugging functionality for "non-standard" integration methods
2010-10-12 13:08:54 +00:00
Christoph Kords efd92d9b51 allocation of special state variables for "non-standard integration" was erroneous. used to produce segmentation fault for integration method 4 and 5. 2010-10-12 12:11:24 +00:00
Christoph Kords fce7590c17 * now able to choose method for state integration (integrator and integratorStiffness in numerics.config); standard is "Fixed Point Iteration", which is basically the same as before; others available are "Explicit Euler", "AdaptiveEuler", "Classical Runge-Kutta" and "Runge-Kutta Cash-Karp"
* now remembering stiffness similar to how we do it for Lp etc.; avoids undefined stiffness values for nonconverged stiffness calculation

* non-local stuff:
   * changed non-local kinetics (Gilman2002)
   * enforce zero shearrate for overall carrrier density below relevant density
   * enforce zero density for those states that become negative and were below relevant density before
   * dislocation velocity is not limited by V^(1/3) / dt anymore
2010-10-01 12:18:49 +00:00
Martin Diehl 9927cd7adb changed format of resolution. instead of reading exponent of two, now the number given equals directly to the number of FPs. Allows us to use arbitrary number of FPs.
example:
OLD: reading 5 results in 2^5=32 FPs
NEW: reading 33 results in 33 FPs
2010-10-01 10:42:15 +00:00
Alankar Alankar 2cc7bc38d7 Fixed a missing ','. Assigned plane and direction names. 2010-10-01 06:32:44 +00:00
Philip Eisenlohr 1ae252c1ce altered hexagonal slip systems
(needs comparison to former set, which is potentially wrong)
2010-09-30 17:31:19 +00:00
Claudio Zambaldi b85f9b0770 material.config: changed texture of microstructure 1 from 1 to 3, because 1 needs a ODF file which is not in the repository and makes the one_element_model.proc complain. 2010-09-30 12:55:38 +00:00
Philip Eisenlohr a8dfdc6487 added _mul33xx33 double contraction: A_ij * B_ij = scalar 2010-09-30 09:32:49 +00:00
Christoph Kords cb4b4afc88 corrected header for math_qRot 2010-09-30 08:46:58 +00:00
Philip Eisenlohr b259fbd9c6 1) added distribution of leapfrog breaks
2) lattice_symmetryType is now a function (former lookup array was buggy)
3) stricter check of state var values (>0!) and memory deallocation done
2010-09-30 07:31:53 +00:00
Alankar Alankar e562df35a9 Added more state dependent variables in post results. 2010-09-29 06:35:08 +00:00
Philip Eisenlohr 3a4743f1d3 fixed bug in grain naming scheme. occurred for gaps in consecutive numberings... 2010-09-28 16:56:49 +00:00
Martin Diehl 5a51082977 polishing, changed calculation of stress BC.
prevent updating of gamma hat in case of perfect plasticity
2010-09-24 13:27:53 +00:00
Alankar Alankar d94236b2d6 Declaration of filename etc. was missing. Fixed now. 2010-09-23 09:13:46 +00:00
Philip Eisenlohr 83a921eec2 crystallite: polishing
rest: added "$ID" and line ending settings...
2010-09-23 08:05:50 +00:00
Philip Eisenlohr a467fb4ae3 forgot "$ID" and setting line endings... 2010-09-23 08:03:00 +00:00
Philip Eisenlohr 89136afade debug now has config file, too 2010-09-23 08:01:41 +00:00
Philip Eisenlohr 23746e7e78 chopped line beginnings
introduced check for PIL, if this fails, no image will be output
2010-09-23 07:59:52 +00:00
Martin Diehl 6ea8623f65 added functions math_mul33x3_complex math_Plain99to3333 to math.f90.
mpie_spectral.f90 uses both functions
math_Plain99to3333 is used for inversion of c0
math_mul33x3_complex is used for equilibrium check in fourier space
also did some cleaning up on mpie_spectral.f90
2010-09-22 12:04:43 +00:00
Alankar Alankar 80618c9814 Cleaned-up, rearranged state variables 2010-09-22 09:00:40 +00:00
Alankar Alankar 7548858ffa Some useful changes in damper for quicker convergence. 2010-09-22 08:54:36 +00:00
Martin Diehl 604992a9e1 fixes bugs in screen output, changed gmsh output, now the deformed mesh is written out 2010-09-22 08:51:34 +00:00
Martin Diehl 6920d8d939 cleaning up, added new output to gmsh and to screen, prepared calculation of deformed mesh
new convergence criteria: divergence of stressfield (in fourier space)
2010-09-21 15:38:25 +00:00
Alankar Alankar 8488cafe3a now consistent with numerics.f90 values 2010-09-21 14:37:52 +00:00
Alankar Alankar 18c86ca0b1 Updated corresponding files for titanmod constitutive 2010-09-13 09:29:03 +00:00
Philip Eisenlohr 9a20f742ea leaner memory requirement to store states and their rates when calculating the crystallite stiffness 2010-09-13 09:13:25 +00:00
Philip Eisenlohr d8a4cd1739 added optional argument --baseindex to specify what colorset should be influenced. identify colors, for instance, start at idx 214... 2010-09-13 07:31:27 +00:00
Leyun Wang e604e0946e 2010-09-12 20:12:53 +00:00
Alankar Alankar 006dce7d8a printing euler angles (and defgrads and orientations) for individual ips now works 2010-09-08 11:55:57 +00:00