Journal
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
Volume 28, Issue -, Pages 111-124Publisher
ELSEVIER
DOI: 10.1016/j.jmbbm.2013.07.010
Keywords
Lower extremity injury; Bone fracture; Blast wave; Numerical modeling; Energy absorption
Funding
- Wayne State University Bioengineering Center
- China Scholarship Council (CSC)
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A series of computational studies were performed to investigate the response of the lower extremities of mounted soldiers under landmine detonation. A numerical human body model newly developed at Wayne State University was used to simulate two types of experimental studies and the model predictions were validated against test data in terms of the tibia axial force as well as bone fracture pattern. Based on the validated model, the minimum axial force causing tibia facture was found. Then a series of parametric studies was conducted to determine the critical velocity (peak velocity of the floor plate) causing tibia fracture at different upper/lower leg angles. In addition, to limit the load transmission through the vehicular floor, two types of energy absorbing materials, namely IMPAXX (R) foam and aluminum alloy honeycomb, were selected for floor matting. Their performances in terms of blast effect mitigation were compared using the validated numerical model, and it has been found that honeycomb is a more efficient material for blast injury prevention under the loading conditions studied. (C) 2013 Elsevier Ltd. All rights reserved.
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