论文和技术资料

Finite element models using COMSOL Multiphysics and MATLAB were developed to solve the problem of stress distribution interior homogeneous, isotropic, incompressible elastic solid material under known vertical external compression with a rectangular contact surface. Moreover, comparison between these results and analytical solutions was used to further validate that stress drops off with depth and laterally instead of being uniform which is assumed in most current elastography algorithms and thus results in artifacts darkening the image.