Mechanical modeling of skin

The chapter describes the work that was performed in the soft tissue biomechanics laboratory at Eindhoven University of Technology on the biomechanics of skin. A rationale is given for the changes from standard testing methods to inverse methods, from in vitro to in vivo and back to in vitro testing and for the more detailed studies on individual skin layers of the last decade. The chapter tries to explain how our vision on testing methods and modeling changed over the years and why the pursuit towards a complete constitutive model is still ongoing.