Influence of Human Body Temperature on Compressive Mechanical Properties of UHMWPE Acetabular Cup Material

摘要：

The tests of the compressive mechanical properties of ultra high molecular weight polyethylene (UHMWPE) acetabular cup material were carried out under the simulating human body temperatures and the variable loads in human natural walking cycle. Compared with the values at the room temperature 22℃, the yield stresses of UHMWPE at human body temperatures 37℃ and 40℃ decreased by 23.1％ and 31.9％, respectively. And higher temperature caused larger compression strain and lesser deformation recovery. It can be concluded that human body temperature may accelerate the failure of UHMWPE prosthesis and that the strong influence of human body temperature on the mechanical properties of UHMWPE should be considered. The experimental study provides some basic data and references for UHMWPE prosthesis used in human body.

关键词： human body temperature ultra-high molecular weight polyethylene(UHMWPE) mechanical properties hip prostheses joint replacement

作者: Xiao-Wen Zheng Hui-Rong Meng

作者单位: School of Mechanical, Electronic and Information Engineering China University of Mining & Technology (Beijing) Beijing, China

会议类型: 国际会议

会议名称: The 2nd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2008)(第二届生物信息与生物医学工程国际会议)

会议地点: 上海

会议语种:英文

页码: 1804-1807

在线出版日期: 2008-05-16（万方平台首次上网日期，不代表论文的发表时间）