Creep: General description

Purpose

Data Files

  • The first line of the file should contain the sample parameters separated by semi-colons (;). It may contain any number of parameters which will be read and saved as file-parameter in RepTate. In unit-aware applications, a file parameter value may also include an explicit unit, for example Mw=1131 Da;T=25 ºC;gdot=0.1 1/s;.

  • Then the data columns should appear, separated by spaces or tabs.

  • In unit-aware applications, column headers may include units in square brackets or parentheses, for example t [min] or G' [kPa]. See Units for the supported units and current limitations.

.creep extension

Text files with .creep extension should be organised as follows:

  • .creep files should contain at least the parameter value for the:

    1. Applied stress stress

  • 2 columns separated by spaces or tabs containing respectively:

    1. time, \(t\),

    2. strain, \(\gamma\),

A correct .creep file looks like:

stress=10;chem=PE;label=CM3;T=150;
t         strain          stress      T
s         -           Pa          C
1E-3  1.413E-5        10          149.9
1E-3  -9.419E-6       10          149.9
1E-3  -2.826E-5       10          149.9
...   ...         ...     ...

Views

log(gamma(t))

../../../_images/Creep_LogGammat.png

gamma(t)

../../../_images/Creep_Gammat.png

log(J(t))

../../../_images/Creep_LogJt.png

J(t)

../../../_images/Creep_Jt.png

t/J(t)

../../../_images/Creep_t_Jt.png