Hyperelastic Rubber Calculator

Mooney-Rivlin (2-param): W = C₁₀(I₁−3) + C₀₁(I₂−3)
Young's Modulus
E
MPa
Shear Modulus
G
MPa
MR Constant
C₁₀
MPa
MR Constant
C₀₁
MPa
Bulk Modulus
K
MPa
*MAT
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Stress-Strain

References

Mooney-Rivlin Model

1. Altidis P.A., Warner B.V. Analyzing hyperelastic materials with some practical considerations. Midwest ANSYS Users Group Conference, 2005.

2. Gent A.N. On the Relation between Indentation Hardness and Young's Modulus. Rubber Chemistry and Technology. 1958;31(4):896–906.
https://doi.org/10.5254/1.3542351

Yeoh Model (Third-Order Reduced Polynomial)

3. Marckmann G., Verron E. Comparison of hyperelastic models for rubber-like materials. Rubber Chemistry and Technology. 2006;79(5):835–858.
https://doi.org/10.5254/1.3547969

4. Yeoh O.H. Some forms of the strain energy function for rubber. Rubber Chemistry and Technology. 1993;66(5):754–771.
https://doi.org/10.5254/1.3538343

5. Seibert D.J., Schöche N. Direct comparison of some recent rubber elasticity models. Rubber Chemistry and Technology. 2000;73(2):366–384.
https://doi.org/10.5254/1.3547597

These empirical correlations allow estimation of hyperelastic material constants from Shore A hardness measurements, providing initial parameters when specific laboratory test data is unavailable.