easistrain 0.1

A Python library for strain/stress analysis from X-ray diffraction data.

Getting started

Install the library

python -m pip install git+https://github.com/EASI-STRESS/easistrain

Process energy-dispersive X-ray diffraction data wuth

python -m easistrain.EDD.<task_name> <config_file>

<task_name> should be replaced by a valid task name (see below).

<config_file> should be replaced by the path to the configuration for the task. Examples of config files for each task can be found at https://github.com/EASI-STRESS/easistrain/tree/main/example_config or in the example_config folder of the source code.

The available tasks are

• Task 1 → calibrationEDD → calibration of the conversion from Channel → Energy

• Task 2 → angleCalibEDD → calibration of the diffraction angle

• Task 3 → fitEDD → fitting

• Task 4 → coordTransformation → transformation of the coordinates from the gonio reference to the sample reference

• Task 5 → regroupPoints → regroup all the points

• Task 6 → preStraind0cstEDD → calculates the strain in the measurement direction

• Task 7 → strainStressd0cstEDD → calculates the strain and stress tensors

Documentation

• Theory
  • Scattering vector
  • Strain tensor
• Coordinate systems
  • Sample reference frame
  • Laboratory reference frame
  • Scattering vector
• Unordered notes
  • Task 1: calibrationEDD
  • Task 2: angleCalibEDD
  • Task 3: fitEDD
  • Task 4: coordTransformation
  • Task 5: regroupPoints
  • Task 6: preStraind0cstEDD
  • Task 7: strainStressd0cstEDD
• API documentation
  • easistrain