This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Characterization of Soft Tissue Under Impact Loading
Published May 18, 2005 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
Development of human body models requires characterization of the soft tissues at higher strain rates. However, dynamic properties of human body soft tissue considering strain rate dependency are limited in literature. In this paper, an experimental approach to characterize the soft tissue response under impact loading is described. Soft tissues from the lower leg region are tested for varying strain rates ranging from 131/s to 647/s. Tests are performed on laterally unconfined specimen and the maximum compression level is limited to about 50%. Force history, top platen displacement and deformation of the tissue are recorded and are converted to give strain-strain curves. A maximum force of 16 N is recorded for the highest strain rate (647/s) tested, exhibiting a maximum stress of 743 kPa at 50% strain. Results show that strain rate dependency on the stress-strain relationship of the lower extremity soft tissue. The main objective to establish a test procedure to characterize the soft tissue response under impact loading at higher strain rates is achieved.