Stiffness Matrix Calculator

[C] = [S]⁻¹ (Stiffness from Compliance)

C₁₁ = E(1-ν)/((1+ν)(1-2ν))

C₁₂ = Eν/((1+ν)(1-2ν))

C₄₄ = G (Shear Modulus)

[C] = stiffness matrix, [S] = compliance matrix, E = Young's modulus, ν = Poisson's ratio, G = shear modulus

Calculation Method:

Young's Modulus E (GPa):

Poisson's Ratio ν:

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