# Stress versus Strain Curve CSV Format

CSV file format for defining stress-strain curves.

## CSV file format fields

The format of the file has a header "strain, stress" and corresponding row of values. If the data is true stress-strain, add [true] to the end of the header row:

stress, strain, [true]

The data will be converted to engineering stress-strain as the CSV file is read in.

## Example CSV file (elastic-perfectly-plastic.csv)

strain,stress

0.00,0.00

0.005,5.30e8

0.4,5.30e8

## Example CSV file (elastic-plastic-line-hardening.csv)

strain,stress

0.00,0.00

0.005,5.30e8

0.4,5.83e8