A nonlinear viscoelastic meshless model for virtual surgery deformation simulation
Soft tissue deformation is an important part of virtual surgery simulation systems.Real-time and realistic simulation of soft tissue deformation in humans is crucial for virtual surgery simulation systems.Soft tissue deformation simulation mainly applies a linear and viscoelastic biomechanical model;however, this model loses numerous properties of soft tissue.As a consequence, a realistic representation of soft tissue deformation is difficult to achieve.This paper proposes a nonlinear viscoelastic element-free Galerkin model to solve current problems related to soft tissue deformation.The proposed model increases adjustment function compared with a linear viscoelastic model.Therefore, the proposed nonlinear viscoelastic model can efficiently simulate real properties of soft tissue.Experimental deformation simulation results of the human liver show that the proposed method is valid.
virtual surgery soft tissue deformation meshless method nonlinear model
Xuemei Liu Zhenkuan Wangl Yunhua Li Dongdong Song
North China University of Water Resource and Electric Power, Zhengzhou, China 450011;School of Autom North China University of Water Resource and Electric Power, Zhengzhou, China 450011
国内会议
郑州
英文
26-34
2015-06-01（万方平台首次上网日期，不代表论文的发表时间）