Finite element analysis of anti-impact loading of wrist protectors
10.3969/j.issn.1673-8225.2011.30.006
- VernacularTitle:腕保护器抗冲击载荷的有限元分析
- Author:
Xieping DONG
;
Dongmei WANG
;
Jianying HE
;
Liyi ZHOU
;
Jincheng WANG
;
Xiaohui WU
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2011;15(30):5531-5534
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND: Skidproof wrist protection devices can well protect the waist.OBJECTIVE: To analyze the efficacy of wrist protectors against fracture using three-dimensional finite element analysis.METHODS: Based on original data of Mechanical Virtual Human of China, three-dimensional finite element models of wrist with normal soft tissues and wrist wearing protectors were established using Abaqus6.51 software. The model was subjected to loading of 2 m/s. Stress-strain distribution of finite element model of the wrist before and after protectors wearing was compared, and maximum stress variation with time in the distal ulna was analyzed.RESULTS AND CONCLUSION: Compared with wrist not wearing protectors, the equivalent stress at soft tissues of hypothenar eminence, dorsal wrist, inferior segment of the radioulna, and distal radioulna was significantly decreased, which the stress at the second and fourth metacarpal bone, proximal segment of the index finger, and hamate bone was significantly increased, indicating the wrist protector can disperse, or transfer some stress from the distal radius and ulna to the wrist, palm or digital bone, thereby playing a positive role in preventing dital radial and ulnar fractures.
