Experimental assessment of cruciate ligaments performance on a Lower Limb Impactor (LLI)

Abstract

The Lower Leg Impactor (LLI) has been used since 2005 without any modification. However, this model lacks similitude with the human knee. This work analyzes the operation of a four-bar mechanism applied in LLI, as a movable element of the knee. In addition, Runover experimental tests were carried out using the LLI made with ultra-high molecular weight polyethylene (UHMWPE), to analyze the accuracy of movable knee implemented in the LLI under the European Enhanced Vehicle-Safety Committee/Working Group 17 (EEVC/WG17) standard. The results show the possible injuries suffered in the double four-bar mechanism and the different injuries developed in pedestrians.