A generalization of Hencky’s strain-energy density to model the large deformations of slightly compressible solid rubbers

On the volumetric part of strain-energy

On the volumetric part of strain-energy functions used in the constitutive modeling of slightly compressible solid rubbers

✍ Cornelius O. Horgan; Jeremiah G. Murphy 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 352 KB

A popular model for the finite element simulation of slightly compressible solid rubber-like materials assumes that the strain-energy function can be additively decomposed into a volumetric part and a deviatoric part. Based on mathematical convenience, the volumetric part is usually assumed to be a