numerical modeling of primary thoracic trauma because of blast

نویسندگان

محمد حسین لشکری

mohammad hossein lashkari 1department of surgery, aja university of medical sciences, tehran, iran.دانشگاه علوم پزشکی آجا کامبیز کنگرلو

kambiz kangarlou amir kabir university of technologyدانشگاه صنعتی امیرکبیر محمد تفضلی شادپور

mohammad tafazzoli- shadpour amir kabir university of technologyدانشگاه صنعتی امیرکبیر

چکیده

purpose: since explosive blasts continue to cause casualties in both civil and military environments, there is a need for an understanding of the mechanisms of blast trauma at the human organ level, plus a more detailed predictive methodology. the primary goal of this research was to develop a finite element model capable of predicting primary blast injury to the lung so as to assist in the development of personal protective equipment.   materials and methods: numerical simulation of thorax blast loading consisted of the following components: 3d thorax modeling reconstruction, meshing and assembly of various thorax parts, blast and boundary loading, numerical solution, result extraction and data analysis.   results: by comparing the models to published experimental data, local extent of injury in the lung was correlated to the peak pressure measured in each finite element, categorized as no injury (< 60 kpa), trace (60-100 kpa), slight (100-140 kpa), moderate (140-240 kpa) and severe (> 240 kpa). it seemed that orienting the body at an angle of 45 degrees provides the lowest injury.   conclusion: the level and type of trauma inflicted on a human organ by a blast overpressure is related to many factors including: blast characteristics, body orientation, equipment worn and the number of exposures to blast loading.

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Numerical modeling of primary thoracic trauma because of blast

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عنوان ژورنال:
annals of military and health science research

جلد ۱۳، شماره ۱، صفحات ۷-۱۴

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