Title :
Preliminary study on high speed tensile properties of artificial ligament
Author :
Lai, Cheng-Chum ; Jaw-Lin Wang ; Ku, Ming-Chou ; Chang, Guan-Liang
Author_Institution :
Inst. of Biomed. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
The purpose of current study is to study the mechanical properties of artificial ligament by using a high speed impact tensile testing apparatus. We fixed the input impact energy and changed the impact period to mimic various impact loading conditions. We found the ultimate elongation, and forces are rate dependent; however, the stiffness of artificial ligament is rate independent. The results showed that the maximum loading is 1000 N, maximum displacement is 17 mm, maximum strain is 18.8% when the impact period is minimal, and the stiffness is 14.9 N/m for all three different impact period levels.
Keywords :
biomechanics; biomedical materials; elongation; impact strength; orthopaedics; prosthetics; tensile strength; 17 mm; artificial ligament; high speed impact tensile testing apparatus; high speed tensile properties; impact loading conditions; impact period; input impact energy; maximum displacement; maximum loading; maximum strain; mechanical properties; rate dependent forces; rate independent stiffness; ultimate elongation; Biomedical engineering; Capacitive sensors; Hospitals; Ligaments; Mechanical factors; Power engineering and energy; Protocols; Surgery; Tensile stress; Testing;
Conference_Titel :
Bioengineering Conference, 2003 IEEE 29th Annual, Proceedings of
Print_ISBN :
0-7803-7767-2
DOI :
10.1109/NEBC.2003.1216073
