eeb0825e63
adjusting to original publication
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Our implementation is using synonymous names for parameters compared to the paper by J.A. Wollmershauser, B. Clausen, and S.R. Agnew.
'xi_inf' and 'chi_inf' are not strictly "asymptotic values", but stresses that correspond to the back-extrapolation from the terminal linear hardening stage (characterized by 'h_inf_xi/chi').
All parameters are referenced back to their counterparts in the paper by J.A. Wollmershauser, B. Clausen, and S.R. Agnew.
2023-03-31 17:54:25 +00:00
f427b85967
re-fit for new phenopowerlaw formulation
2023-01-23 21:51:08 +01:00
1174e94486
re-fit
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- new phenopowerlaw formulation for hardening
- physics-based interactions (scaled DDD results such that
self-hardening is 1.0)
2023-01-15 01:34:30 +01:00
6c1edaeaac
new data for Aluminum
2023-01-15 01:33:50 +01:00
695d78eb35
have EOL and EOF
2023-01-08 14:32:13 +01:00
976cfd501a
thermal expansion coefficients for SiC
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this material was the initial motivation for adding fourth order
polynomials, but I could not find a reliable source for the graphs send
to damask@mpie.de . It seems that the CTE levels off for even higher
temperature which calls for a higher order polynomial
2023-01-08 14:31:43 +01:00
eb74d5a097
polishing
2023-01-08 11:54:42 +01:00
64fbfbb206
re-fit with correct conversion between Celsius and Kelvin
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procedure is documented in the 'parameters' repository
2023-01-08 10:58:01 +01:00
b9195a121f
commonly used scaling
2023-01-08 10:57:36 +01:00
1711bf3220
re-fit using correct scaling
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code is in 'parameters' repository
2023-01-08 10:57:06 +01:00
81870a6111
re-fit data
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some small adjustments, procedure is now reproducible using "parameters"
repository
2023-01-08 00:25:43 +01:00
ef435ee7d1
commonly used variable name
2022-11-20 09:40:15 +01:00
28ea09050d
polishing
2022-10-25 23:18:22 +02:00
ff3e08531e
including test
2022-10-23 12:42:17 +02:00
0c83245d4b
example files for TWIP/TRIP
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I'm not able to reproduce the results from https://doi.org/10.1016/j.actamat.2016.07.032 ,
but these parameters give results that are qualitatively ok
2022-09-22 16:39:23 +02:00
576c79a619
following DAMASK paper
2022-06-13 14:08:45 +02:00
9b94aca09f
new example file
2022-06-08 23:28:54 +02:00
0f1d0cbd61
copy and paste error
2022-05-17 08:53:32 +02:00
b3992e0ff0
test new example files
2022-05-16 23:24:29 +02:00
cda6e0af35
some difference to pure Ni
2022-05-13 11:44:02 +02:00
37eb567451
dataset for Platinum
2022-05-13 11:10:02 +02:00
bba105c2a8
re-fit, documented details
2022-02-13 18:37:34 +01:00
e3a64ae4ff
don't fit close to 0K
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cryogenic temperatures are normally not of interest, avoid considering
the strongly curved region below 80K in the fit gives probably better
extrapolation properties for T>300K
2022-02-13 14:57:01 +01:00
ba16ea21a0
avoid overfitting
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there are only 3 data points for C_13, with one close to 0K. Leave this
point out and fit only a 1st order polynomial
2022-02-13 14:48:15 +01:00
bb6a62c475
more temperature dependent data
2022-02-13 13:49:19 +01:00
80f5496ef2
adjustments and improved documentation
2022-02-12 22:20:51 +01:00
4d808335de
polishing
2022-02-12 18:55:01 +01:00
3bdfc29fb2
Parameter set for beta-Sn
2022-02-12 15:42:39 +01:00
0f0108f603
polishing
2022-01-09 08:14:31 +01:00
a884b99aa9
Merge remote-tracking branch 'origin/development' into physics-based-hex-interactions
2022-01-08 20:45:46 +01:00
c29428a609
Merge branch 'more-material-parameters' into 'development'
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new material parameters
See merge request damask/DAMASK!490
2022-01-06 16:28:40 +00:00
4a0a1f7ac9
paper is online
2022-01-02 22:29:48 +01:00
7e4a374c9e
new material parameters
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- austenitic steel AISI304
- SAE1050 after quenching to martensite
I don't know how the old set of elastic constants for martenstite
(originally coming from 10.1088/0965-0393/23/4/045005) was derived,
but it is hard to believe that the elastic behavior can be that strongly
modified by a heat treatment.
2021-12-27 21:10:28 +01:00
32e741ae2c
elastic constants for bcc iron
2021-12-21 15:54:46 +01:00
fd3e8532ee
polishing
2021-12-13 16:50:47 +01:00
d3a8b3d3d1
polishing
2021-12-13 16:46:01 +01:00
e330348c98
Temperature-dependent Elastic Constants for Aluminum
2021-12-13 16:38:31 +01:00
b41d9411a7
Temperature-dependent Elastic Constants for Silver
2021-12-13 16:30:46 +01:00
d66b9e1896
subdivision of interaction matrix for hcp
2021-12-06 16:51:18 +01:00
fe2123bae4
2. order prismatic systems are not needed
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not clear for which material they have been introduced, according to
T.R. Bieler and P. Eisenlohr they are typicall not active in any
material of interest
2021-12-06 12:23:24 +01:00
5ba59dead2
polish
2021-11-25 14:07:41 -05:00
97ffb8c88e
guide the user
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+ needed for consistent indentation (make YAMLlint happy)
2021-11-24 20:02:08 +01:00
719996f285
trailing definitions not needed
2021-11-24 15:52:38 +01:00
56bc3bc71d
simplify counting, emphasize floating point values
2021-11-24 15:48:11 +01:00
2e3de727cc
hint at issues with the current parametrization
2021-11-02 07:27:08 +01:00
3f3224a9cb
found better source
2021-10-31 18:59:57 +01:00
737eff9179
bugfix: change of behavior
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v_0 was erroneously introduced
use tau = (tau_pos+tau_neg)/2
2021-10-31 18:59:51 +01:00
a352f8deeb
reasonable convergence
2021-10-31 16:05:22 +01:00
fbc4865c30
mathematically equivalent re-formulation
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allows to disable contribution from grain size by setting it to a large
value
2021-10-31 15:42:18 +01:00
25ca77c38e
parameters from original paper (mostly)
2021-10-31 13:34:48 +01:00
Philip Eisenlohr