Commit Graph

103 Commits

Author SHA1 Message Date
Martin Diehl c2e81414e3 updated TWIP steel data set to have only 2 slip system families, added data set for tungsten 2014-03-11 10:34:36 +00:00
Franz Roters 4399fb9535 improved comment on Euler angles, now includes unit 2014-02-10 15:48:00 +00:00
Martin Diehl 1ea48bb8ff added accumulatedshear as output for twin and slip 2014-02-05 15:26:22 +00:00
Martin Diehl c99ca8b0ee fixed magnesium parameters 2014-01-23 13:33:09 +00:00
Martin Diehl 3fffb2ae3e added parameter set for Magensium 2014-01-15 12:29:44 +00:00
Christoph Kords 629295242f added two new outputs: "rho_dot_flux_mobile" and "rho_dot_sgl_mobile"
corrected outputs of dislocation density rates: take into account that blocked dislocation density is a signed quantity
2014-01-07 15:55:28 +00:00
Franz Roters efa7a6dae2 added example material.config again 2013-12-05 15:11:30 +00:00
Christoph Kords 61ebfb4c85 removed obsolete output 'boundarylayer' from material.config 2013-11-29 12:30:06 +00:00
Martin Diehl 345e5cd47c split up material.config and added a small helper script to create wiki content from all material.configS
(Work done by Luv, just his TortoiseSVN is not yet installed)
2013-11-27 17:49:34 +00:00
David Mercier a8eb6a985e - Addition of an example of a material.config file for hcp material (cp-Ti).
- New Error Message #214 when elastic constants are not correctly defined.
- Error message when the c/a ratio for hcp is higher than 2 (no physical sense).
2013-09-17 12:20:50 +00:00
Christoph Kords ec377a6e8e removed obsolete "dead zone" scaling 2013-08-21 08:39:43 +00:00
Martin Diehl b8d5f3124f added citation on phenopowerlaw aluminum parameters 2013-08-09 21:24:42 +00:00
Pratheek Shanthraj 23e8fcbc51 updated config file with new convergence parameters 2013-08-08 09:12:12 +00:00
Martin Diehl 2dc985f558 set tolerances to useful values and renamed them.
allowed "keyword = value" in numerics.config (simply removing "=" from line)
2013-07-31 15:03:38 +00:00
Franz Roters 4f7cd76b29 renamed texture_rotation into texture_transformation
changed keyword for material.config to axes in line with geom_fromAng.py
former keyword rotation is still recognized for compatibility
2013-07-24 11:09:39 +00:00
Franz Roters 4a291dc372 implementation of twin nucleation criteria according to Davids PhD thesis
applies for fcc crystal structure only
2013-07-01 13:06:01 +00:00
Franz Roters 9a1ad7e089 added third value for slip twin interaction in fcc dislotwin example 2013-06-24 12:53:56 +00:00
Christoph Kords ec2503253e added output of slip direction and slip normal
changed name of fluxdensity outputs
2013-05-23 08:19:36 +00:00
Nader Zaafarani 882c3e155f Adding two titles for accumulated shear due to "slip" and "twin" 2013-05-19 20:34:40 +00:00
Martin Diehl c7ba8a2a9b introduced plain mode (no ping pong) again and added test for MSC.MArc 2012 as prove that its working 2013-05-17 17:52:46 +00:00
Franz Roters d2416abdb4 introduced new keyword 'rotation' to specify texture rotation
ATTENTION: so far it is read but NOT yet applied!!!
waiting for updated code for orientation assignement
2013-05-02 08:35:37 +00:00
Christoph Kords 9b1fd579d4 corrected phase numbering in example material.config 2013-04-10 12:09:09 +00:00
Martin Diehl ddcc795461 allowed arbitrary grid (formerly know as resolution), i.e. any integer>1 in each dimension is possible.
removed square root correction for divergence (doesn't make sense)
fixed FFT debug of spectral solver
2013-04-10 10:19:16 +00:00
Christoph Kords 10e50bf41d improved accuracy of "accumulated shear": now added as a state variable, which facilitates integration (dotstate=shearrate); needs absolute tolerance value for state integration in material.config 2013-04-04 13:37:14 +00:00
Martin Diehl 5b8257a7f9 added debugging possibility for MSC.Marc, rename parameters to CAPITALS 2013-03-31 13:06:49 +00:00
Christoph Kords 44eb771583 added crystallite output of current ip coordinates 2013-03-27 10:12:28 +00:00
Martin Diehl 15b6242585 set more appropriate default values for spectral solver tolerances (abs stress BC was at huge()) 2013-03-26 16:36:52 +00:00
Pratheek Shanthraj be655ae536 Changed AL solver errors to absolute. Stress boundary error now max of relative and absolute error 2013-03-22 14:46:55 +00:00
Christoph Kords cee90bbdb3 simplified dislocation kinetics: dropped relativistic correction of velocity, since the infinite attack frequency already sets a limit for the velocity; dropped second; also dropped the correction term for backward jumps, since it was probably not meaningful 2013-03-21 12:52:29 +00:00
Martin Diehl dd06d07e1c set default number of iteration for spectral solver to 250 instead of 40, abaqus doxygen now does the correct inclusion (everything appeared twice before) 2013-03-14 23:10:02 +00:00
Martin Diehl 1779510dda remove some unused variables, set default value for divergence calculation to 1.e-5 and made calculation independent of dim and res 2013-03-12 18:48:28 +00:00
Pratheek Shanthraj 72bc1df832 forgot in previous commit 2013-02-28 17:37:26 +00:00
Martin Diehl cd0325baf1 introduced atol_twinfrac for dislotwin
set values in material.config example
atol_rho            1.0,
atol_twinFrac       1.0e-7
2013-02-14 09:57:26 +00:00
Martin Diehl 77c0b32af9 removed possible (but not-working) output of schmid_factor_shearband from dislotwin 2013-02-14 08:53:17 +00:00
Philip Eisenlohr c7740b41a5 added possible accumulated shear output request to example list of phenopowerlaw 2013-02-07 11:09:14 +00:00
Pratheek Shanthraj fd94c786f0 moved stiffness tensor calculation to lattice
introduced 'isotropic' and 'orthorhombic' lattice types to use corresponding symmetries in stiffness tensor. intended to be used with non-crystal plasticity models (j2, constitutive_none with isotropic, cubic or orthotropic elasticity).
2013-01-21 21:57:26 +00:00
Christoph Kords 8a45a90775 new crystallite output "grainrotationX", "grainrotationY", "grainrotationZ" that gives the deviation of the initial orientation in degrees around the sample reference x/y/z axis, while "grainrotation" still gives the same as axis angle pair in crystal coordinates 2013-01-16 08:45:41 +00:00
Martin Diehl 738f363263 corrected small issues with PETSc debugging 2013-01-03 16:17:23 +00:00
Christoph Kords f14fd45ce1 new material parameter "egdejog": fraction of annihilated screw dipoles that forms edge jogs 2012-12-23 12:56:15 +00:00
Martin Diehl 5c0c7121e7 made PETSc silent by removing -snes_view from default options.
introduced PETSc option for debugging that introduces some debugging options into the petsc options and move PETSc initialization from numerics to DAMASK_spectral_utilities
2012-12-15 18:07:49 +00:00
Martin Diehl b1f28ba5e7 made restart working for all solvers and added corresponding test
corrected error handling for FFT based function in case of odd numbers etc.
2012-12-14 17:30:22 +00:00
Christoph Kords 9eb89b0050 made random multiplication switchable via material.config 2012-12-03 12:59:38 +00:00
Christoph Kords 62ddbf26df slightly changed the multiplication term in the nonlocal model for the starvation case 2012-11-29 18:50:25 +00:00
Christoph Kords f666f8dcf3 added possibility to scale the plastic shearrate by the ratio of mobile to total density; keyword in material.config is "deadZone" 2012-10-29 12:49:28 +00:00
Christoph Kords 3ecaa9e371 modified multiplication term in order to mimic a discrete distribution of dislocation sources; namely, at high resolution, when there is (on average) less than one source per integration point, a random generator decides whether there is a source in the finite volume or not; if there is one, then the multiplication turns independent of the density and depends only on the velocity/volume times a scalar factor; recovers density*velocity/lambda for large finite volumes 2012-10-19 11:40:17 +00:00
Martin Diehl 324dfda5a2 added comments (doxygen conform) to phenopowerlaw, added warning on specifying h0_sliptwin as it has no effect 2012-10-11 14:49:12 +00:00
Christoph Kords 40a2e652e7 introduced material parameter "linetension", which indicates how strong the effect of the line tension on the hardening coefficients is 2012-10-05 14:42:41 +00:00
Christoph Kords 1502a71f0c added possibility to start with an initial random distribution of dislocation segments with specific overall density 2012-10-02 12:57:24 +00:00
Franz Roters 9fc46b4950 added /echo/ statements 2012-10-02 08:12:53 +00:00
Christoph Kords 8336d0705c new numerics parameter "unitlength" that scales the model size in DAMASK; this enables to use very small models in marc without getting any numerical problems for example with contact which does not seem to work when using very small numbers 2012-09-24 06:13:26 +00:00