Creep: General description

Purpose

Application to Analyze Data from Creep experiments

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.

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

.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))

ApplicationCreep.viewLogStraint()

Logarithm of the applied strain \(\gamma(t)\) vs logarithm of time \(t\)

gamma(t)

ApplicationCreep.viewStraint()

Applied strain \(\gamma(t)\) vs time \(t\) (both axes in logarithmic scale)

log(J(t))

ApplicationCreep.viewLogJt()

Logarithm of the compliance \(J(t)=\gamma(t)/\sigma_0\) (where \(\sigma_0\) is the applied stress in the creep experiment) vs logarithm of time \(t\)

J(t)

ApplicationCreep.viewJt()

Compliance \(J(t)=\gamma(t)/\sigma_0\) (where \(\sigma_0\) is the applied stress in the creep experiment) vs time \(t\) (both axes in logarithmic scale)

t/J(t)

ApplicationCreep.viewt_Jt()

Time divided by compliance \(t/J(t)\) vs time \(t\) (both axes in logarithmic scale)