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This simple yet elegant tool will allow you to swiftly calculate the engineering stresses and strains for a wide variety of standard loading conditions.


Quickly and accurately perform "back of the envelope" calculations, or quick checks with ease using the built in unit conversion and One-Touch main screen function access.

POST SECONDARY STUDENTS ( Mechanical, Aerospace, Civil Engineering, etc... )

Make your problem sets, labs and design projects a breeze with multiple pre-programmed common loading conditions, cross-sections and formula display.

Make all of your engineering stress and strain calculations simple, featuring:

  • Reference equations & diagrams
  • Integration of sub-equations - (Press the |Sub| button)
  • Standard loading conditions for tensile, compressive and shear stresses
  • Built-in unit conversion
  • Dynamic calculation
  • Prominent tabbed output display
  • Simplified main screen layout with icons for quick identification
  • Built-in Cross-section property calculators

With the integration of sub-equations, you can benefit from the added ease of determining critical design inputs through additional equations if you have not determined the specific value beforehand. (Press the |Sub| button)

The prominent tabbed output display makes the answer always directly at hand by displaying the output(s) at the top of the screen. By grouping calculators that can output multiple design parameters in a compact and easy to use "tabbed" display, you can "swipe or tap" left and right on the output field and view all of your results.

Simplify your calculations with built-in cross-section property calculators for a wide variety of standard shapes and never have to calculate area (A), area moment of inertia (I) or polar moment of inertia (J) by hand again. All you need to press is the |Sub| button beside the cross-section property of interest.

Included calculators:

  1. Axial Stress
  2. Axial Strain
  3. Axial Deflection
  4. Bending Stress
  5. Convert Stress to Strain
  6. Convert Strain to Stress
  7. Direct Shear Stress
  8. Transverse Shear Stress
  9. Torsional Shear Stress – (Circular)
  10. Torsional Shear Stress – (Non Circular)
  11. Torsional Twist – (Circular)
  12. Torsional Twist – (Non Circular)
  13. Thin Walled Pressure Vessels
  14. Thick Walled Pressure Vessels

Units Conversions Supported:

  • Stress / Pressure: Pa, kPa, MPa, GPa, psi, kpsi
  • Strain: unitless, %, Millistrain, Microstrain, Nanostrain
  • Force: N, kN, MN, GN, nN, uN, mN, lbf, kgf
  • Length: m, mm, um, nm, in, ft
  • Moment / Torque: N-m, N-mm, kN-m, kN-mm, lb-ft, lb-in, oz-ft, oz-in, kg-mm, kg-m, g-mm, g-m
  • Area: m^2, mm^2, cm^2, um^2, nm^2, in^2, ft^2
  • Moment of Inertia / Polar Moment of Inertia: m^4, mm^4, cm^4, um^4, nm^4, in^4, ft^4
  • Angle: degrees, radians

Standard Cross-section Properties for A, I and J Supported:

  • Area (A):
    • Square, Hollow Square, Rectangle, Hollow Rectangle, Circle, Hollow Circle, I-Beam, Circular Sector, Tubular Sector, Ellipse, Ellipse, Triangle (3 Sides), Triangle (Based & Height), Trapezoid (Trapezium), Parallelogram, Pentagon, Hexagon, Heptagon, Octagon, Nonagon, Decagon
  • Area Moment of Inertia (I):
    • Rectangle, Hollow Rectangle, Circle, Hollow Circle, I-Beam, Semicircle, Ellipse, General Triangle, Right Triangle, Isosceles Triangle
  • Polar Moment of Inertia (J):
    • Circle, Hollow Circle
  • Non-Circular Torsion Q&K Factors (Q/K):
    • Square, Hollow Square, Rectangle, Hollow Rectangle, Ellipse, Hollow Ellipse, Open Circular Tube, Open Arbitrary Shape

Simple Solutions Droid is dedicated to providing you with simple solutions to your complex technical problems.

We appreciate any and all feedback on our Apps so we can help provide better solutions to you, our valued customers.

Please note that this product is intended as a reference tool only and is not a substitute for formal engineering design verification.

Team SSDroid

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