H-Drill   -   Hole-Drilling Residual Stress Calculation Program

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.4.20 (2022):  Features include:

•   Computes residual stresses according to ASTM E837-20  
•   User-friendly interface
•   Works with inch or metric units
•   Handles blind or through holes
•   Corrects effects of hole eccentricity  
•   Works with finite thickness specimens  
•   Compatible with rosettes from Vishay, BLH and Kyowa  
•   Accepts rosettes with user-specified dimensions  
•   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

•   Opening screen
•   Material and geometry data input
•   Strain data input
•   Hole eccentricity data input
•   Uncertainty data input
•   Calculation options
•   Results cascade
•   Strain plots
•   Normalized strain plots
•   Stress results in numerical format
•   Stress results in graphical format
•   Stress vector plot
•   Calculation check
•   Frequently Asked Question menu
•   An FAQ answer