Natural optima in human skull: a low-velocity impact study

Abstract Human skull bone is a three-layered structure with a compliant viscoelastic cancellous bone layer sandwiched between elastic compact layers. The objective of the work was to check whether the skull bone is innately optimized with respect to the various geometrical and material parameters and to find out the parameters with which they are optimized. The effect of varying the thickness of layers and short time modulus of the interlayer are studied for optimality using finite element analysis of the skull subjected to low-velocity impact. Results show that they are optimized to meet different objectives.