TY - JOUR PY - 1996// TI - Response of Human Lower Thorax to Impact JO - Annual proceedings of the Association for the Advancement of Automotive Medicine A1 - Haffner, Mark P. A1 - Sances, S A1 - Kumaresan, Srirangam A1 - Pintar, Frank A. A1 - Yoganandan, Narayan A. SP - 33 EP - 43 VL - 40 IS - N2 - The objective of this study was to determine the dynamic force-deflection characteristics of the human lower thoracic region. Five unembalmed cadavers with vascular pressurization were subjected to impact on the right lower anterior region of the thorax at a velocity of 4.3 m/s. A pendulum (23/5 kg, 150 mm diameter face) delivered the impact. The force-time history was obtained from the load cell attached to the pendulum impactor. Deflections at the impact site were obtained using the chest band signals. Force-deflection curves were obtained by eliminating the time variable between the force and deflection time histories. Peak impact forces ranged from 1.9 to 2.7 kN (mean: 2.29 kN +/- 0.38). Peak deflections ranged from 34 to 85 mm (mean: 59.3 mm +/- 18.1). Detailed autopsy revealed rib and liver trauma. The nonlinear force-deformation curves presented in this study provide fundamental data for the design of anthropomorphic test devices with improved biofidelity so that injury can be predicted in real-world crash environments.

LA - SN - 1540-0360 UR - http://dx.doi.org/ ID - ref1 ER -