#fem/stiffness-tensor-symmetry

🧑‍🔬Mechanics / 🧊 Basics of Finite Element Method

1. Symmetric Stiffness Tensor and Voigt notation

Voigt notation packs symmetric stress and strain tensors into six-component vectors, so the elasticity tensor becomes a symmetric 6x6 matrix. Use it to read, write and implement constitutive laws compactly, including their FEniCSx form.