The State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, Hunan, China; Bioengineering Center, Wayne State University, 818W Hancock, Detroit, MI 48201, USA.
J Mech Behav Biomed Mater. 2013 Dec;28:111-24. doi: 10.1016/j.jmbbm.2013.07.010. Epub 2013 Jul 19.
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(®) 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.
进行了一系列计算研究，以调查地雷爆炸下挂载士兵下肢的反应。韦恩州立大学新开发的数值人体模型用于模拟两种类型的实验研究，并根据胫骨轴向力和骨骨折模式对模型预测进行了测试数据验证。基于经过验证的模型，找到了导致胫骨骨折的最小轴向力。然后进行了一系列参数研究，以确定在不同的小腿/大腿角度下导致胫骨骨折的临界速度（地板板的峰值速度）。此外，为了限制通过车辆地板的载荷传递，选择了两种类型的能量吸收材料，即 IMPAXX（®）泡沫和铝合金蜂窝，用于地板衬垫。使用经过验证的数值模型比较了它们在减轻爆炸影响方面的性能，结果发现，在研究的加载条件下，蜂窝是一种更有效的爆炸损伤预防材料。
