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Principle Stress Calculations

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Principle Stress Calculations
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Summary

Given the stress and shear components for plane stress conditions, this interactive calculator computes principal stresses, principal angle, and maximum shear stress.

Notes on Rock Mechanics - Principal Stress Calculations

  • Given the stress and shear components for plane stress conditions, this calculator computes principal stresses, principal angle, and maximum shear stress.
  • Both input and output units may be specified in any of the available units ... the calculator converts between units as required.
  • Compressive stress is assumed positive; tensile stress is negative.
  • -10 000 <= Input Stress <= 10 000
  • Maximum shear stress occurs at 45 degrees to the principal stress direction.

Tool Parameters

Values displayed with a may be changed ... click on a value to display an entry form ... or use the arrows right of a value to select from a list.

Tool Behaviour

This tool exhibits spreadsheet-like behaviour ... change a value and related values are re-calculated automatically.