ViscoelasticFoam Abaqus VUMAT and sample input files for modeling of viscoelastic foams Cite If used, please cite Xiuqi Li, Jialiang Tao, Alexander K. Landauer, Christian Franck, and David L. Henann. Large-deformation constitutive modeling of viscoelastic foams: Application to a closed-cell foam material. Journal of the Mechanics and Physics of Solids 161 (2022) 104807.