#+DATE: Time-stamp: <2020-02-28>
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#+AUTHOR: H. Dieter Wilhelm
#+EMAIL: dieter@duenenhof-wilhelm.de
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#+STARTUP: showall
#+TITLE: This Apdl-Mode's README.org for the matlib/ directory
  Its text is best read in Emacs' Org mode.

  Copyright (C) 2015 - 2020  H. Dieter Wilhelm, GPL V3

  If not indicated otherwise in the file name, material properties are
  linear and for room temperature.

* Usage in an APDL file
  Specify the material library to read from:
  #+BEGIN_SRC emacs-lisp
  /mplib,read,/HOME/uidg1626/a-m/matlib
  /mplib,stat !show the material directories
  !! which materials are acutally in the material library?
  /sys,ls ~/a-m/matlib
  #+END_SRC

  You have to indicate the unit system.

  - SI — International system (m, kg, s, K).
  - MKS — MKS system (m, kg, s, °C).
  - uMKS — μMKS system (μm, kg, s, °C).
  - CGS — CGS system (cm, g, s, °C).
  - MPA — MPA system (mm, Mg, s, °C).
  - BFT — U. S. Customary system using feet (ft, slug, s, °F).
  - BIN — U. S. Customary system using inches (in, lbf*s2/in, s, °F).

  For example:
#+BEGIN_SRC emacs-lisp
   /units,mpa !indicate MPA system for subsequent material definitions
   mpread,St37,,,lib
#+END_SRC

  The following block is writing a material definition into the
  library.
#+BEGIN_SRC emacs-lisp
/mplib,write,/HOME/uidg1626/a-m/matlib
!! --- It is advisable to make the material files which are commented read only!
/units,mpa !default extension for mpread/write is now MPA_MPL
mat,Steel ! set the appropriate material number
mpwrite
mplist ! Check
  #+END_SRC

* Materials defined in Apdl-Mode's library
  - 42CrMo4_biso_Rp850.MPA_MPL ::
  - AlSi9Cu3_biso.MPA_MPL ::
  - C75s_hardened_kinh.MPA_MPL ::
  - construction_steel.MPA_MPL ::
  - copper.MPA_MPL ::
  - M250-35A_aniso.MPA_MPL ::
  - M250-35A_biso.MPA_MPL ::
  - M250-35A_orthotropic_elastic.MPA_MPL ::
  - M800-65A_biso.MPA_MPL ::
  - NdFeB_magnet.MPA_MPL ::
  - PPS_Fortron1140L4_70degC_kinh.MPA_MPL ::
  - PPS.MPA_MPL :: Celanese Fortron 1140L4 40 % glass fibre, Young's
                   modulus 80 % reduced compared to test specimen to
                   replicate a random fibre orientation.
  - St37_elastic.MPA_MPL ::
  - St37.MPA_MPL ::
  - St70_biso.MPA_MPL ::
  - X46Cr13.MPA_MPL ::

* Other material data
  - creep_curves_PPS_Fortron1140l4_120degC.csv :: A 40 % short glas
       fibre filled PPS.  The stress - creep strain curves are scaled
       with a factor of 0.8 from test specimen to account for a random
       fibre orientation in thick walled parts.  They might be used as
       an example for data fitting with the TBFT command.
-----
* COMMENT Restrictions of the material models
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