Martin Diehl
1174e94486
re-fit
...
- 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
Martin Diehl
6c1edaeaac
new data for Aluminum
2023-01-15 01:33:50 +01:00
Martin Diehl
695d78eb35
have EOL and EOF
2023-01-08 14:32:13 +01:00
Martin Diehl
976cfd501a
thermal expansion coefficients for SiC
...
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
Martin Diehl
eb74d5a097
polishing
2023-01-08 11:54:42 +01:00
Martin Diehl
64fbfbb206
re-fit with correct conversion between Celsius and Kelvin
...
procedure is documented in the 'parameters' repository
2023-01-08 10:58:01 +01:00
Martin Diehl
b9195a121f
commonly used scaling
2023-01-08 10:57:36 +01:00
Martin Diehl
1711bf3220
re-fit using correct scaling
...
code is in 'parameters' repository
2023-01-08 10:57:06 +01:00
Martin Diehl
81870a6111
re-fit data
...
some small adjustments, procedure is now reproducible using "parameters"
repository
2023-01-08 00:25:43 +01:00
Martin Diehl
ef435ee7d1
commonly used variable name
2022-11-20 09:40:15 +01:00
Martin Diehl
28ea09050d
polishing
2022-10-25 23:18:22 +02:00
Martin Diehl
ff3e08531e
including test
2022-10-23 12:42:17 +02:00
Martin Diehl
0c83245d4b
example files for TWIP/TRIP
...
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
Martin Diehl
576c79a619
following DAMASK paper
2022-06-13 14:08:45 +02:00
Martin Diehl
9b94aca09f
new example file
2022-06-08 23:28:54 +02:00
Martin Diehl
0f1d0cbd61
copy and paste error
2022-05-17 08:53:32 +02:00
Martin Diehl
b3992e0ff0
test new example files
2022-05-16 23:24:29 +02:00
Martin Diehl
cda6e0af35
some difference to pure Ni
2022-05-13 11:44:02 +02:00
Martin Diehl
37eb567451
dataset for Platinum
2022-05-13 11:10:02 +02:00
Martin Diehl
bba105c2a8
re-fit, documented details
2022-02-13 18:37:34 +01:00
Martin Diehl
e3a64ae4ff
don't fit close to 0K
...
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
Martin Diehl
ba16ea21a0
avoid overfitting
...
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
Martin Diehl
bb6a62c475
more temperature dependent data
2022-02-13 13:49:19 +01:00
Martin Diehl
80f5496ef2
adjustments and improved documentation
2022-02-12 22:20:51 +01:00
Martin Diehl
4d808335de
polishing
2022-02-12 18:55:01 +01:00
Martin Diehl
3bdfc29fb2
Parameter set for beta-Sn
2022-02-12 15:42:39 +01:00
Martin Diehl
0f0108f603
polishing
2022-01-09 08:14:31 +01:00
Martin Diehl
a884b99aa9
Merge remote-tracking branch 'origin/development' into physics-based-hex-interactions
2022-01-08 20:45:46 +01:00
Sharan Roongta
c29428a609
Merge branch 'more-material-parameters' into 'development'
...
new material parameters
See merge request damask/DAMASK!490
2022-01-06 16:28:40 +00:00
Martin Diehl
4a0a1f7ac9
paper is online
2022-01-02 22:29:48 +01:00
Martin Diehl
7e4a374c9e
new material parameters
...
- 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
Sharan Roongta
32e741ae2c
elastic constants for bcc iron
2021-12-21 15:54:46 +01:00
Martin Diehl
fd3e8532ee
polishing
2021-12-13 16:50:47 +01:00
Martin Diehl
d3a8b3d3d1
polishing
2021-12-13 16:46:01 +01:00
Nikhil Prabhu
e330348c98
Temperature-dependent Elastic Constants for Aluminum
2021-12-13 16:38:31 +01:00
Nikhil Prabhu
b41d9411a7
Temperature-dependent Elastic Constants for Silver
2021-12-13 16:30:46 +01:00
Sheng Zhang
d66b9e1896
subdivision of interaction matrix for hcp
2021-12-06 16:51:18 +01:00
Martin Diehl
fe2123bae4
2. order prismatic systems are not needed
...
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
Philip Eisenlohr
5ba59dead2
polish
2021-11-25 14:07:41 -05:00
Martin Diehl
97ffb8c88e
guide the user
...
+ needed for consistent indentation (make YAMLlint happy)
2021-11-24 20:02:08 +01:00
Martin Diehl
719996f285
trailing definitions not needed
2021-11-24 15:52:38 +01:00
Martin Diehl
56bc3bc71d
simplify counting, emphasize floating point values
2021-11-24 15:48:11 +01:00
Martin Diehl
2e3de727cc
hint at issues with the current parametrization
2021-11-02 07:27:08 +01:00
Martin Diehl
3f3224a9cb
found better source
2021-10-31 18:59:57 +01:00
Martin Diehl
737eff9179
bugfix: change of behavior
...
v_0 was erroneously introduced
use tau = (tau_pos+tau_neg)/2
2021-10-31 18:59:51 +01:00
Martin Diehl
a352f8deeb
reasonable convergence
2021-10-31 16:05:22 +01:00
Martin Diehl
fbc4865c30
mathematically equivalent re-formulation
...
allows to disable contribution from grain size by setting it to a large
value
2021-10-31 15:42:18 +01:00
Martin Diehl
25ca77c38e
parameters from original paper (mostly)
2021-10-31 13:34:48 +01:00
Martin Diehl
0107acff16
original data was given in min^-1
2021-08-14 13:12:21 +02:00
Martin Diehl
809365cd72
reference for 1.4/1
2021-08-14 13:01:37 +02:00