title: Anisotropic Finite Element Modeling Based on a Harmonic Field for Patient-Specific Sclera.
abstract: Purpose. This study examined the influence of anisotropic material for human sclera.Method. First, the individual geometry of patient-specific sclera was reproduced from a laser scan. Then, high quality finite element modeling of individual sclera was performed using a convenient automatic hexahedral mesh generator based on harmonic field and integrated with anisotropic material assignment function. Finally, comparison experiments were designed to investigate the effects of anisotropy on finite element modeling of sclera biomechanics.Results. The experimental results show that the presented approach can generate high quality anisotropic hexahedral mesh for patient-specific sclera.Conclusion. The anisotropy shows significant differences for stresses and strain distribution and careful consideration should be given to its use in biomechanical FE studies.
authors.affiliation: Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
authors.forename: Xu
authors.identifier: 0000-0002-0060-3683
authors.initials: X
authors.lastname: Jia
authors.affiliation: School of Information Science and Engineering, Central South University, Changsha, Hunan 410083, China.
authors.forename: Shenghui
authors.identifier: 0000-0002-8872-2117
authors.initials: S
authors.lastname: Liao
authors.affiliation: Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
authors.forename: Xuanchu
authors.identifier: 0000-0003-1101-0602
authors.initials: X
authors.lastname: Duan
authors.affiliation: School of Information Science and Engineering, Central South University, Changsha, Hunan 410083, China.
authors.forename: Wanqiu
authors.initials: W
authors.lastname: Zheng
authors.affiliation: School of Information Science and Engineering, Central South University, Changsha, Hunan 410083, China.
authors.forename: Beiji
authors.initials: B
authors.lastname: Zou
mesh_terms: D016880:Anisotropy; D003198:Computer Simulation; D020342:Finite Element Analysis; D006801:Humans; D008954:Models, Biological; D012590:Sclera / Q000033:anatomy & histology*; D013223:Statistics as Topic; D013314:Stress, Mechanical