title: Blast effect on the lower extremities and its mitigation: a computational study.
abstract: 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.
authors: 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.
authors: Liqiang
authors: L
authors: Dong
authors: Feng
authors: F
authors: Zhu
authors: Xin
authors: X
authors: Jin
authors: Mahi
authors: M
authors: Suresh
authors: Binhui
authors: B
authors: Jiang
authors: Gopinath
authors: G
authors: Sevagan
authors: Yun
authors: Y
authors: Cai
authors: Guangyao
authors: G
authors: Li
authors: King H
authors: KH
authors: Yang
mesh_terms: D001753:Blast Injuries / Q000503:physiopathology / Q000517:prevention & control*; D003198:Computer Simulation; D005107:Explosions; D020342:Finite Element Analysis; D006801:Humans; D035002:Lower Extremity / Q000293:injuries* / Q000503:physiopathology; D055595:Mechanical Phenomena; D008889:Military Personnel; D011187:Posture; D013978:Tibial Fractures / Q000503:physiopathology / Q000517:prevention & control
keywords: Blast wave; Bone fracture; Energy absorption; Lower extremity injury; Numerical modeling