Stiffness Finite element method 6 finite element analysis 4 Article 3 Deformation 3 biological model 3 human 3 rigidity 3 Animals 2 Biomechanics 2 Computational model 2 Elasticity 2 Humans 2 Mechanical behavior 2 Modal analysis 2 Models, Biological 2 Pressure 2 Stochastic systems 2 Tissue engineering 2 Young modulus 2 animal 2 comparative study 2 computer model 2 mechanical stress 2 physiology 2 pressure 2 3-D printing 1 3D modeling 1 3D printers 1 3D-printing 1