There is a need for more complete models of fibre-reinforced solids that use two anisotropic invariants. However, these models present major challenges. Two of these challenges are how to combine these anisotropic invariants and how to reliably …
We propose two toy-models to describe, predict and interpret the wrinkles appearing on the surface of skin when it is sheared. With the first model, we account for the lines of greatest tension present in human skin by subjecting a layer of soft …