Commit Graph

104 Commits

Author SHA1 Message Date
Philip Eisenlohr eeb0825e63 adjusting to original publication
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
Martin Diehl 13630325c3 notation following paper
https://doi.org/10.1016/j.jmps.2016.10.012
DAMASK paper
2023-03-13 17:23:28 +01:00
Martin Diehl f427b85967 re-fit for new phenopowerlaw formulation 2023-01-23 21:51:08 +01:00
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 47e29f47fb re-fit
using higher order polynomial where appropriate. Code for fitting in
"parameters" repository
2023-01-08 14:31:54 +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 cca5d6d495 impoved naming 2022-12-09 06:48:16 +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 1b5194288b polished tests, consistent variable name 2022-06-04 07:26:45 +02:00
Martin Diehl 77f586b1d7 Merge remote-tracking branch 'origin/development' into consistent-damage-parameter-names 2022-05-22 23:35:42 +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 fb633798af following paper 2022-04-01 19:47:40 +02:00
Martin Diehl 4cc7f94eef guide the user 2022-02-19 23:10:05 +01:00
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 663b84641e needed for a complete set for Sn-beta 2022-02-12 22:29:56 +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 cdabdb9882 temperature-dependent thermal conductivity 2022-02-12 16:11:09 +01:00
Martin Diehl 3bdfc29fb2 Parameter set for beta-Sn 2022-02-12 15:42:39 +01:00
Martin Diehl eb0fca9222 generic examples
might help some users to make the connection between old an new names,
good to have examples anyways
2022-02-12 09:08:38 +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
Nikhil Prabhu 242fa486a6 Merge branch 'Temperature-dependent_Elastic_Constants-Al_and_Ag' of magit1.mpie.de:damask/DAMASK into Temperature-dependent_Elastic_Constants-Al_and_Ag 2021-12-14 18:10:39 +01:00
Nikhil Prabhu 9c79c29288 Lattice, density and reference 2021-12-14 18:10:11 +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