Two strain rates shown: 2.8E-3 and 1 s-1. 

Tests at 2.8E-3 s-1 are performed with the universal testing machine INSTRON 3384, which records Extension, Load, Eng.Stress and Eng.Strain

	Name of file: direction_strainrate_material.csv
_____

Tests at 1 s-1 are performed with Gleeble 3800-GTC. The machine outputs force in kgf, true stress (MPa) and true strain values. The raw data is in .txt files.

	Name of file: raw_direction_strainrate_material.txt

Columns and units of .txt file:

	Time(s)	Force(kgf)	Pram	True.strain	True.stress(MPa)	Stroke(mm)


The force, extension and eng stress and strain shown in the .csv files have been obtained from the raw true stress strain values from the .txt files.

	Name of file: direction_strainrate_material.csv

_____

Compression stress strain values on all files are positive and true stress/true strain curves have been obtain by:

True.strain = -log(1-Eng.strain)
True.stress = Eng.stress (1-Eng.strain)
