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Compared with the conventional flexure hinges, the motion range of superelastic flexure hinges can be significantly increased, due to the material's superelasticity effect. In this paper, the deformation of superelastic elliptic flexure hinges is investigated by using finite element method (FEM). The superelastic behavior of the material is described by a bilinear one-dimensional constitutive model...
This paper presents the design of a 6-DOF parallel robot used in the artificial cervical disc replacement surgery, which is used to complete positioning and grinding between prosthesis and bone mating surfaces and whose moving platform is connected to the fixed platform by six UPS (Universal-Prismatic-Spherical) serial chains. In the paper, inverse position, a first-order static influence coefficient...
The objective of this paper is to describe strategies for a physically based model to simulate setting bone surgery from 3D CT image with the finite element (FE) method. A patient's leg sample was selected and scanned by CT at the direction parallel to the Frankfort Horizontal plane. A three-dimensional (3D) finite element model of the human leg was developed using the actual geometry of the leg skeleton...
In this work, we introduce an extension of the linear elastic tensor-mass method allowing fast computation of non-linear and visco-elastic mechanical forces and deformations for the simulation of biological tissue. We aim at developing a simulation tool for the planning of bone surgical treatment based on CT data of special patient. Surgery simulation requires accurate modeling of the mechanical behavior...
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