| Research on Damage in Trabecular Bone of the Healthy Human Acetabulum at Small Strains Using Nonlinear Micro-finite Element Analysis |
| |
| 作者姓名： | 丁海 朱振安 戴克戎 叶铭 王承焘 |
| |
| 作者单位： | Department of Orthopaedics，Shanghai 9th People's Hospital，School of Medicine，Institute of Biomedical Manufacturing and Life Quality Engineering，School of Mechanical Engineering，Shanghai Jiaotong University |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)，上海交通大学研究生创新基金 |
| |
| 摘 要： | The mechanical properties of the pelvic trabecular bone have been studied at the continuum level. However, nothing is known about the tissue-level damage in the trabecular bone of the healthy human acetabulum at apparent small strains characteristic of habitual. By a DAWING 4000 A supercomputer, nonlinear micro-finite element （μFE） analysis was performed to quantify tissue-level damage accumulation in trabecular bone at small strains. The data indicate that damage in trabecular bone commence at 0.2% apparent strain. The findings imply that tissue yielding can initiate at very low strains in the trabecular bone of the healthy acetabulum and that this local failure has negative consequences on the apparent mechanical properties of trabecular bone.
|
| 关 键 词： | 机械力学 X线检查 小梁骨 健康状态 |
Research on damage in trabecular bone of the healthy human acetabulum at small strains using nonlinear micro-finite element analysis |
| |
| Hai Ding,Zhen-an Zhu,Ke-rong Dai,Ming Ye,Cheng-tao Wang.Research on Damage in Trabecular Bone of the Healthy Human Acetabulum at Small Strains Using Nonlinear Micro-finite Element Analysis[J].Journal of Shanghai Jiaotong university,2008,13(5):623-628. |
| |
| Authors: | Hai Ding Zhen-an Zhu Ke-rong Dai Ming Ye Cheng-tao Wang |
| |
| Institution: | (1) Department of Orthopaedics, Shanghai 9th People’s Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200030, China;(2) Institute of Biomedical Manufacturing and Life Quality Engineering, School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai, 200030, China |
| |
| Abstract: | The mechanical properties of the pelvic trabecular bone have been studied at the continuum level. However, nothing is known about the tissue-level damage in the trabecular bone of the healthy human acetabulum at apparent small strains characteristic of habitual. By a DAWING 4000 A supercomputer, nonlinear micro-finite element (μFE) analysis was performed to quantify tissue-level damage accumulation in trabecular bone at small strains. The data indicate that damage in trabecular bone commence at 0.2% apparent strain. The findings imply that tissue yielding can initiate at very low strains in the trabecular bone of the healthy acetabulum and that this local failure has negative consequences on the apparent mechanical properties of trabecular bone. |
| |
| Keywords: | mechanical property trabecular bone acetabulum |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
