湖南大学学报（自然科学版）2016，Vol.43Issue(2)：8-14,7.
3岁儿童 C4-C5颈椎有限元建模方法研究
Study on Development and Validation Method of Finite Element Models for the 3-Year Old Pediatric C4-C5 Cervical Spine
摘要
Abstract
Based on scaling and nonlinear-fitting methods,the material properties of the 3-year old ped-iatric cervical spine were acquired.A specific scaling method for the mechanical properties of the pediatric cervical ligaments was proposed,and the C4-C5 cervical segment finite element model for the 3-year old child was developed with accurate geometries and anatomical structures and validated under quasi-static and dynamic tensile loading.It was indicated that the simulation responses were consistent with those of exper-iments,with an quasi-static tensile stiffness of 211.8 N/mm,a dynamic tensile ultimate failure force of 759.9 N and an ultimate failure displacement of 5.083 mm in simulations.In addition,the force-displace-ment curve in the dynamic tensile simulation was also similar to that of the experiment.It can be concluded that this model is able to reflect the quasi-static and dynamic tensile mechanical properties of 3-year old pe-diatric C4-C5 cervical segment with higher biofidelity.关键词
儿童颈椎/生物力学/拉伸/验证Key words
pediatric cervical spine/biomechanics/tensile/validation分类
交通工程引用本文复制引用
张冠军,魏嵬,曹立波,王丹丹..3岁儿童 C4-C5颈椎有限元建模方法研究[J].湖南大学学报（自然科学版）,2016,43(2):8-14,7.基金项目
国家自然科学基金资助项目（51205118），National Natural Science Foundation of China（51205118）；中央高校基本科研业务费资助项目 （）
