BIOMECHANICAL MODELING AND SIMULATION OF SUBCUTANEOUS ADIPOSE TISSUE BASED ON LINEAR ELASTIC AND HYPERELASTIC MODEL

Author:

WANG MONAN1,LIANG JIANAN1,MAO ZHIYONG1

Affiliation:

1. Mechanical & Power Engineering College, Harbin University of Science and Technology, Harbin 150080, China

Abstract

The biomechanical modeling and simulation of human tissue are the basic part of virtual surgery system. As an important human soft tissue, the biomechanical modeling and simulation method of subcutaneous adipose tissue are urgent problems to be solved in virtual surgery system. In this paper, biomechanical modeling and simulation of subcutaneous adipose tissue were completed based on linear elastic and hyperelastic finite element model. First, the deformation process of subcutaneous adipose tissue was divided into two stages: Initial loading stage and later loading stage. Furthermore, the linear elastic model at initial loading stage and the nonlinear elastic model at later loading stage were established, respectively. Then, the biomechanical model of subcutaneous adipose tissue was solved based on the finite element method. Finally, the linear finite element calculation was included in nonlinear finite element calculations, and finite element simulation program of the subcutaneous adipose tissue was compiled in Visual Studio environment. The accuracy of the model was verified by comparing the simulation results with the experimental results. The efficiency of finite element simulation program of the linear and nonlinear hybrid model is evaluated by comparing the simulation time with the single linear model and the hyperelastic model.

Publisher

World Scientific Pub Co Pte Lt

Subject

Biomedical Engineering

Reference14 articles.

1. Liu Y, Basis and Clinic of Fat Transplantation, Military Medical Science Press, Beijing, pp. 1–10, 2009.

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