Abstract
A modified Fung-type model (MFM) for three-dimensional (3D) boundary-value problems has been implemente into a finite element program, in which the Fung model represents fibers and the neo-Hookean model describes matrix of soft tissue. Simple constraints on the material parameters are adopted to render the MFM applicable to not only any material behavior, such as orthotropic, transversely isotropic and isotropic material, but also in the analysis stapled anastomoses for which the material is subjected to both tension load and compression
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