H-Drill  -  Hole-Drilling Residual Stress Calculation Program

H-DRILL is a specialized computer software for doing the stress calculations for the popular hole-drilling method for measuring residual stresses.
New version v.4.00 (2021):  Features include:

  •   Computes residual stresses according to ASTM E837-20
  •   Works with blind or through holes
  •   Works with finite thickness specimens
  •   Can use seven common hole-drilling rosettes
  •   Handles inch or metric units
  •   Does extensive data error checking
  •   Not restricted to particular hole depths
  •   Integral Method calculations for non-uniform stresses
  •   Uses regularization to stabilize stress solutions
  •   Estimates ranges of stresses for given data uncertainties
  •   Displays results in graphical and numerical formats
  •   Non-directional and fixed principal direction stress calculations
  •   Power Series calculations for linearly varying stresses
  •   Uniform stress calculations, useful to indicate stress magnitude
  •   Detailed instruction manual and answers to FAQ


 H-Drill is written by Prof. Gary S. Schajer, Vancouver, Canada.

H-DRILL screenshots