SymbolMethods for material assignment of finite element analysis with femurs
- Zhang, Guo-dong
- Liao, Wei-jing
- Tao, Sheng-xiang
- Mao, Wen-yu
- Chen, Jian-qiao
- Zheng, Xiao-hui
- Zhang, Fa-hui
1Department of Rehabilitation Medicine, 2Department of Orthopedics, Zhongnan Hospital, Wuhan University, Wuhan 430071, Hubei Province, China; 3Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430071, Hubei Province, China; 4Department of Orthopedics, General Unit of People's Armed Police Hospital in Fujian, Fuzhou 350025, Fujian Province, China; 5Institute of Orthopedics, Fuzhou General Hospital of Nanjing Military Area Command of Chinese PLA, Fuzhou 350025, Fujian Province, China
Zhang Guo-dong☆, Studying for doctorate, Attending physician, Department of Rehabilitation Medicine, Zhongnan Hospital, Wuhan University, Wuhan 430071, Hubei Province, China [email protected]
Correspondence to: Liao Wei-jing, Doctor, Professor, Department of Rehabilitation Medicine, Zhongnan Hospital, Wuhan University, Wuhan 430071, Hubei Province, China [email protected]
Received: 2009-05-27
Accepted: 2009-09-23
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Abstract:
All twelve specimens of femoral superior segment were treated with CT scanning, three-dimensional reconstruction in Mimics 10.0 and volume meshing in Ansys. The three-dimensional model of control group was divided into compact bone and cancellated bone based on the gray value, while the experimental group was divided into the following kinds of 10, 20, 50, 100, 200, 400. All models were assigned with material attributes to be tested in Ansys. All data of total elements were harvested and treated with U-test. All 12 specimens of femoral superior segment were successfully executed with finite element analysis; there were significant differences between No.1, 5, 6,7, 9 and 10 specimens of the control and experimental groups (P < 0.05), but no differences were found between No. 2, 3, 4, 8, 11 and 12 of two groups (P > 0.05). In addition, no statistical significance was found among the experimental groups (P > 0.89). Results show that to assign skeleton to 2 kinds, i.e. compact bone and cancellated bone, could not match the needs for a personalized finite element analysis; and to assign skeleton to 10 kinds of material attributes to three-dimensional model of femur could match the needs for finite element analysis.
Zhang GD, Liao WJ, Tao SX, Mao WY, Chen JQ, Zheng XH, Zhang FH. Methods for material assignment of finite element analysis with femurs.Zhongguo Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu. 2009;13(43): 8436-8441. [http://www.crter.cnhttp://en.zglckf.com]
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