Thermal Resistance Calculator

Calculate thermal resistance R = L/(k·A) for conduction, 1/(h·A) for convection. Series/parallel resistance networks. Overall heat transfer coefficient U from composite wall analysis. R-value for building insulation.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)
σy — Normal Stress Y (MPa)
τxy — Shear Stress (MPa)
⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.
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How It Works

Calculate thermal resistance R = L/(k·A) for conduction, 1/(h·A) for convection. Series/parallel resistance networks. Overall heat transfer coefficient U from composite wall analysis. R-value for building insulation

Each component has a specific meaning:

  • Composite wall analysis — The composite wall analysis recorded for the patient or scenario being assessed.

Note: Interpret the thermal resistance result against the clinical thresholds and context described above.

How to Use

Enter the composite wall analysis for the patient or scenario you are assessing. Calculate thermal resistance R = L/(k·A) for conduction, 1/(h·A) for convection. Series/parallel resistance networks. Overall heat transfer coefficient U from composite wall analysis. R-value for building insulation. Use the thermal resistance result to inform your clinical assessment.

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U-Value

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Frequently Asked Questions