Fuelcell Engineering

SOFC Stack Interfacial Thermal Expansion Mismatch Stress Calculator

SOFC Stack Interfacial Thermal Expansion Mismatch Stress engineering calculator.

Quick Answer

Calculate SOFC Stack Interfacial Thermal Expansion Mismatch Stress

Calculator

Interfacial Thermal Stress (Pa)
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Result Interpretation

SOFC Stack Interfacial Thermal Expansion Mismatch Stress Calculator computes Interfacial Thermal Stress in Pa using the defined engineering formula and the input values provided.

Worked Example

Verified calculation

Given:

  • Effective Biaxial Modulus = 120000000000
  • Operating Temperature = 1073.15
  • Reference Temperature = 298.15
  • Layer CTE = 1.15E-5
  • Substrate CTE = 1.05E-5

Expected Result:

  • Interfacial Thermal Stress = -93000000

Engineering Interpretation:

Under the given input conditions, the calculated result is: Interfacial Thermal Stress = -93000000 Pa.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.

Formula / Method

interfacial thermal stress = effective biaxial modulus * (substrate cte - layer cte) * (operating temperature - reference temperature)

Formula family: formula_fuelcell_sofc_stack_thermal_expansion_mismatch_stress_calculator

Variables

SymbolLabelRoleDescription
E_eff Effective Biaxial Modulus INPUT Effective Biaxial Modulus
alpha_substrate Substrate CTE INPUT Substrate CTE
alpha_layer Layer CTE INPUT Layer CTE
T_operating Operating Temperature INPUT Operating Temperature
T_reference Reference Temperature INPUT Reference Temperature
interfacial_thermal_stress Interfacial Thermal Stress OUTPUT Interfacial Thermal Stress

Calculation Steps

  1. Enter the effective biaxial modulus in Pa.
  2. Enter the substrate cte in K^-1.
  3. Enter the layer cte in K^-1.
  4. Enter the operating temperature in K.
  5. Enter the reference temperature in K.
  6. Step 1: Compute interfacial thermal stress.
  7. Read the interfacial thermal stress (Pa) from the results.

Engineering Summary

Calculate SOFC Stack Interfacial Thermal Expansion Mismatch Stress

Frequently Asked Questions

What does this calculator calculate?

The SOFC Stack Interfacial Thermal Expansion Mismatch Stress Calculator estimates Interfacial Thermal Stress based on the input parameters you provide

Why is effective biaxial modulus important in this calculation?

effective biaxial modulus is directly proportional to interfacial thermal stress. When you enter effective biaxial modulus in Pa, the calculator uses it in the engineering formula to compute the output

How should I interpret the result interfacial thermal stress?

The calculator outputs interfacial thermal stress in Pa. For higher pressures, divide by 1000 to express in kPa, or by 101325 for atmospheres. The result is computed directly from the input values using the defined engineering formula

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Effective Biaxial Modulus (Pa), Substrate CTE (K^-1), Layer CTE (K^-1), Operating Temperature (K), Reference Temperature (K). Make sure all inputs use the specified units for consistent results

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment

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