9e76b51014
fixing global variables handling (need to be defined before being used)
2016-10-31 22:53:14 +01:00
a62ab3b5d4
fixes (mainly tuple arguments for functions and lambda functions)
2016-10-25 21:52:51 +02:00
cd63a92733
using python 2.7 has shebang will also work on mac without symlink
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unless someone uses the 6 year old python 2.6, this should be save
2016-07-18 19:35:35 +02:00
12affbd240
simplified and corrected
2016-05-17 11:23:57 -04:00
a8765a963d
more fixing of old .labels use
2016-05-17 11:12:26 -04:00
a21e8cd863
usind explicitly python2 to run in environments with python 3 as default
2016-05-11 11:01:39 +02:00
76a0a93c42
removed unneeded variables, fixed docstrings. missing variable jc in Barlat1989 from 46c33b0
2016-03-03 14:52:47 +01:00
7c9d344601
python files now report their version depending on VERSION file in $DAMASK_ROOT
2016-01-27 17:06:00 +00:00
ebf20f2ebc
unified style and other minor improvements
2015-10-15 19:51:27 +00:00
dd0167821f
corrected reporting and convergence check
2015-10-14 20:33:22 +00:00
bdfd9c69bb
simplified dimension handling
2015-10-14 18:45:33 +00:00
46564d3df8
commenting and introducing functions for regulary used code
2015-10-14 18:40:02 +00:00
180d4625c1
trying to simplify
2015-10-13 21:00:12 +00:00
61090c955d
removed code doubling
2015-10-09 05:51:58 +00:00
088299daf2
fix the bug in the calculation of RMSD, replace N with sqrt(N).
2015-06-25 12:41:26 +00:00
f5ccc37125
re-write Karafillis-Boyce yield criterion, the old version is actually the generalized Karafillis-Boyce yield criterion, i.e., Born-Besson yield criterion, which has three exponents, it seems unstable. Now retreat to the original Karafillis-Boyce yield criterion (Karafillis, Boyce 1993), which has only one exponents.
2015-05-04 15:00:02 +00:00
1e6c4fa988
re-write Yld2000
2015-05-04 14:54:48 +00:00
e0e7bb7a24
fix bugs of barlat1989, barlat1991
2015-05-04 14:52:33 +00:00
1b9595d012
1. add the option 'all', fit all criteria automatically
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2. generate equivalent stress automatically for advanced criteria.
2015-04-25 17:08:38 +00:00
a55b0c54c6
change the unit of stress
2015-04-25 16:22:32 +00:00
edb559d2fa
1. Judge the validity of stress points, and skip the invalid stress points.
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2. change the defaulted unit
2015-04-25 16:19:06 +00:00
46c33b0d98
polishing
2015-04-21 18:55:10 +00:00
976647b9e4
add the convergence criterion, the method is :
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1. calculate the L2 norm of the residual of all the stress points
2. store the relative errors of the L2 norm
3. if the standard deviation of the relative errors of last five fittings is less than 0.05, that it is considered that the relative errors is stabilized, so the fitting is finished.
2015-04-08 17:48:26 +00:00
b77768fd4d
all the criteria support plane stress
2015-04-08 16:24:20 +00:00
6e650a42b4
some comments for discussion
2015-04-07 07:42:46 +00:00
ab89c84ec8
Correct the message of last change
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1. rename BBC2003 as BBC2000;
2. add the real BBC2003 yield criterion, BBC2003 works;
3. now the BBC family yield criteria include: BBC2000, BBC2003, BBC2005
2015-04-03 21:01:37 +00:00
412028f33f
1. rename BBC2003 as BBC2000;
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2. add the real BBC2003 yield criterion, BBC2003 works;
3. now the BBC family yield criteria include: BBC2000, BBC2003, BBC2008
2015-04-03 20:59:23 +00:00
cd2a744db9
add Yld2000 yield criterion, Yld2000 works
2015-04-03 16:20:03 +00:00
2b9964bba5
add Barlat-Lian 1989 yield criterion, Barlat1989 works.
2015-04-03 12:31:13 +00:00
0097d39873
fix some type errors; add more comments
2015-04-02 19:32:48 +00:00
86f39de462
remove non-utf symbol
2015-04-02 16:13:00 +00:00
d8a99b23bf
1.compact all the criteria into a single Class;
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2.the first thorough check of the script;
3.add the option of exponents for all non-quadratic yield criteria, now the user 1)can specify the exponent, for example, m=6 for Barlat 1991, or 2)see the exponent as an undetermined parameters;
4.add the pre-specified bounds for all criteria;
5.add the user defined equivalent stress for some anisotropic yield criteria
2015-04-02 12:08:55 +00:00
72c2ead277
polishing, replace variables calculation with arrays calculation.
2015-03-27 17:58:49 +00:00
226381586c
compact the code of Yld2004-18p and Karafillis-Boyce, use array instead of components to calculate the partial derivative.
2015-03-16 16:42:26 +00:00
a048b2ec15
1. Implement bbc2005 yield criterion (the residum and Jacobian); 2. bbc2005 works
2015-03-13 10:07:23 +00:00
56cf1b53eb
add Fourier interplation, anisotropic Vegter yield criterion is okay
2015-03-13 08:50:47 +00:00
de29524189
add Vegter criteria, planar isotropy works
2015-03-11 17:42:46 +00:00
a62fa5d5dd
rewrite class Loadcase
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1. add 2 dimension random load case generator
2. add Vegter load case generator(typical stress points in 2D)
2015-03-09 21:57:22 +00:00
96a3cb0667
added some ideas regarding the incorporation of the vegter yield criterion
2015-03-09 11:24:06 +00:00
9203b37fbc
1. Implement Hill1979 yield criterion (the residum and Jacobian);
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2. Hill1979 works
2015-02-25 17:24:33 +00:00
8b1846e78e
1. Implement Karafillis-Boyce yield criterion (the residum and Jacobian);
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2. Karafillis-Boyce works
2015-02-24 16:46:09 +00:00
39e17fc95a
1. add __init__() for the "Class" of each Criterion;
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2. Polishing
2015-02-20 20:51:23 +00:00
a3e5da0bfd
1. Implement 2D and 3D Cazacu-Barlat yield criteria(the residum and Jacobian);
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2. Both work
2015-02-20 20:34:47 +00:00
09c357c70f
1. Fix bug of Yld2004-18p;
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2. get deformation rate tensor and Lankford coefficient.
2015-02-20 14:40:24 +00:00
4a63aff1ed
1. Implement Yld2004-18p yield criterion(the residum and Jacobian);
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2. Yld2004-18p yield criterion takes effect
2015-02-13 17:22:19 +00:00
77cffd8040
1. fix up Banabic-Balan-Comsa 2003 (BBC2003) yield criterion;
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2. add the calculation Jacobian of BBC2003;
3. Now BBC2003 yield criterion takes effect
2015-02-12 20:48:03 +00:00
69af205721
add the calculation of Jacobian of isotropic and anisotropic Barlat1991, shows better performance.
2015-02-12 11:04:00 +00:00
40f1f3af23
add the calculation of Jacobian of Hill1948 and Drucker family criteria.
2015-02-11 19:06:23 +00:00
eed00007f9
Re-write the script:
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1. replace curve_fit with leastsq, which supports the analytical Jacobian
2. specify a "class" (contains both residum and jacobian) for each criterion.
3. add the calculation of Jacobian
2015-02-11 16:49:40 +00:00
f3bab46275
addthe Cazacu–Barlat (CZ) yield criterion (3D and 2D), Banabic–Balan–Comsa (BBC) Yield Criterion.
2015-02-07 16:58:57 +00:00
Martin Diehl