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A novel porous anisotropic scaffold with hierarchy is proposed for bone regeneration. The scaffold can mimic the morphology and the mechanical anisotropy of the natural bone. In this letter, the pores within the scaffold are prolate spheroidal and the structural anisotropy is controlled by the parameter β, which denotes the ratio of the semi-major axis to the semi-minor axis of the prolate spheroidal...
A perfectly plastic von Mises model is proposed to study the elastic–plastic behavior of a porous hierarchical scaffold used for bone regeneration. The proposed constitutive model is implemented in a finite element (FE) routine to obtain the stress–strain relationship of a uniaxially loaded cube of the scaffold, whose constituent is considered to be composed of cortical bone. The results agree well...
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