Haiming Zhang
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0350b1829c
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1. Replace curve_fit(see minpack.py) with curve_fit_bound(see damask/util.py), now the boundary constraint can be applied.
2. Transfer the output information into dictionary 'fittingCriteria', compact subroutine 'fit'.
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2015-02-06 14:01:04 +00:00 |
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Haiming Zhang
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ce09e992cc
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1. Change yieldStress from 'list' to 'numpy.arrary', thanks to Martin's suggestion (3907);
2. Change '3*3' Cauchy stress tensor to '1*6', now the number of input 'xdata' for fitting is 6*Points, which is less than the former 9*Points.
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2015-02-06 13:48:14 +00:00 |
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Martin Diehl
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0b3205a24b
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some suggestions how to simplify
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2015-02-06 09:29:21 +00:00 |
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Haiming Zhang
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4f2c07063b
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Fix general Hosford!
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2015-02-05 20:18:07 +00:00 |
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Haiming Zhang
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2b704b3905
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Fix: Tresca, von Mises, Drucker, Hill 1948 criteria.
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2015-02-04 16:47:35 +00:00 |
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Haiming Zhang
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2d568b49f2
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add the output of standard deviation errors;
fix Hill 48 and anisotropic Barlat 1991
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2015-02-04 13:04:34 +00:00 |
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Haiming Zhang
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3845c47e61
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complement of 3897: add isotropic and anisotropic Barlat 1991 to the dictionary
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2015-02-03 12:57:18 +00:00 |
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Haiming Zhang
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bef846d294
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add isotropic and anisotropic Barlat1991 yield criteria.
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2015-02-03 12:54:16 +00:00 |
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Haiming Zhang
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55445af9bc
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1. add initial guess and weight to the fitting (nonlinear least square regression);
2. extend the dictionary:fittingCriteria
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2015-02-03 12:18:53 +00:00 |
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Haiming Zhang
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cc6138ec41
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rewrite "def fit()";
add format output.
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2015-02-02 17:41:19 +00:00 |
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Haiming Zhang
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fd75772a3f
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Fix the bug of calculating principal stresses. Now the fitting result is better for the criteria which expressed in principal stresses.
Thanks to Martin.
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2015-02-02 16:52:28 +00:00 |
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Martin Diehl
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d86f091026
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some small fixes, reporting still needs update
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2014-10-06 12:47:52 +00:00 |
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Martin Diehl
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2836b2fb35
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work in progress, extending to more criteria
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2014-10-03 09:27:20 +00:00 |
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Martin Diehl
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033a275d82
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a bunch of small changes. deleted compiled FFTW libraries
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2014-10-02 21:27:03 +00:00 |
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Martin Diehl
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afb9a2186b
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removed explicit default setting: type='string' and action='store'
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2014-09-12 14:14:55 +00:00 |
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Martin Diehl
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c6eab9dab7
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fixed wrong order in linear interpolation for stress
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2014-08-18 20:09:09 +00:00 |
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Martin Diehl
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e637f6344c
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added possibility to fit to more than one yield point, now using linear interpolation between around given threshold value
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2014-08-18 18:21:36 +00:00 |
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Martin Diehl
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ad7fe1ecbc
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fixed bug (wrong index in stress tensor for Hill48) and possible deadlock
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2014-08-10 21:22:22 +00:00 |
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Martin Diehl
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c8f16f16fa
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fixed bug in hill criterion
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2014-08-06 20:07:47 +00:00 |
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Martin Diehl
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649e637561
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added some more post processing tests and improved output
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2014-08-06 19:06:33 +00:00 |
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Martin Diehl
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96fe818f5d
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added more options to command line
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2014-08-05 14:29:36 +00:00 |
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Martin Diehl
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b4b9835d18
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some work on the yield surface generator
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2014-08-04 21:15:56 +00:00 |
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Martin Diehl
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a804b23b7a
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bugfixing
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2014-07-24 22:02:10 +00:00 |
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Martin Diehl
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42032cbc25
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started to restructure fitting to criterion
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2014-07-22 21:59:58 +00:00 |
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Martin Diehl
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c8cd775747
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added spectral solver grid location and index function to util library
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2014-07-21 17:49:45 +00:00 |
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Martin Diehl
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fd2164b391
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von Mises fitting seems to work, still needs polishing (adding options etc)
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2014-07-09 09:31:26 +00:00 |
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Martin Diehl
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5f638a059a
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corrected string substitution
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2014-07-09 07:17:58 +00:00 |
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Martin Diehl
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fdb4f2ffea
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now the program flow is working
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2014-07-08 16:09:02 +00:00 |
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Martin Diehl
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7a478d646a
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added call to DAMASK spectral
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2014-07-07 14:17:44 +00:00 |
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Martin Diehl
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a48b4cfc95
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improved dummy yield surface generator
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2014-07-04 13:40:15 +00:00 |
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Martin Diehl
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a68fe7c77b
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first draft of a script to compute yield surfaces with the spectral solver
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2014-07-02 10:42:51 +00:00 |