What's New

- Bug fixes.
- Updated for newer operating systems.

App Description

Stress Intensity Factors Pro is the easiest and most convenient way to calculate SIFs when and where you need to. Simply select from the available geometries, enter the loads and dimension, and the App will quickly give you the resulting "K". Share a PDF of the result via email or a print out.

Features include:
• Universal App (Designed for iPad and iPhone)
• Automatic conversion of the inputs and results between Imperial and Metric units
• Share your calculation via email or Air Print

Mode I "K" solutions included are:

Standard Specimen:
• Single Edge Notch in Tension
• Single Edge Notch in Bending
• Center Cracked in Tension
• Double Edge Notched in Tension
• Compact Specimen
• Disk Shaped Compact Specimen

Infinite Plates
• Through Crack in an Infinite Plate (also includes Mode II solution)
• Edge Crack in a Semi-Infinite Plate
• Surface Flaw in an Infinite Plate

Finite Plates
• Surface Flaw in a Flat Plate
• Embedded Flaw in a Flat Plate
• Corner Crack in a Flat Plate

Check out our other engineering apps by searching the iTunes store for:
• Pressure Vessel Pro
• Moments of Inertia
• Mohr's Circle
• Stress Concentrations Pro
or search J.R.Hobbs to see them all.

iPhone Screenshots

(click to enlarge)

Stress Intensity Factors Pro screenshot 1 Stress Intensity Factors Pro screenshot 2 Stress Intensity Factors Pro screenshot 3 Stress Intensity Factors Pro screenshot 4 Stress Intensity Factors Pro screenshot 5

iPad Screenshots

(click to enlarge)

Stress Intensity Factors Pro screenshot 6 Stress Intensity Factors Pro screenshot 7 Stress Intensity Factors Pro screenshot 8 Stress Intensity Factors Pro screenshot 9 Stress Intensity Factors Pro screenshot 10

App Changes

  • June 05, 2014 Initial release
  • August 04, 2014 New version 1.0.2
  • October 10, 2014 New version 1.1
  • January 14, 2015 Price decrease: $5.99 -> $2.99
  • April 18, 2015 Price decrease: $2.99 -> FREE!
  • October 03, 2015 Price increase: FREE! -> $1.99
  • June 13, 2019 New version 1.2.1
  • January 26, 2021 New version 1.3

Other Apps From Joel Hobbs

Mohr's Circle Stress Concentrations Pro Moments of Inertia Pressure Vessel Pro Inspectix Stress Concentration Factors 2