Print Email Facebook Twitter A new standard for predicting lung injury inflicted by Friedlander blast waves Title A new standard for predicting lung injury inflicted by Friedlander blast waves Author van der Voort, M.M. Holm, K.B. Kummer, P.O. Teland, J.A. van Doormaal, J.C.A.M. Dijkers, H.P.A. Publication year 2016 Abstract An important blast injury mechanism is the rupture of the lungs and the gastrointestinal tract. In explosives safety studies and threat analysis the empirical model of Bowen is often used to quantify this mechanism. The original model predicts the lethality for a person in front of a reflecting surface caused by simple Friedlander blast waves. Bowen extended the applicability to persons in prone position and standing in the free field by making assumptions about the pressure dose at these positions. Based on new experimental data, some authors recently concluded that the lethality for a person standing in the free field is the same as for a person in front of a reflecting surface, contrary to Bowen's assumptions.In this article, we show that only for a short duration blast wave, the load on a person standing in the free field is comparable to that on a person in front of a reflecting surface. For long positive phase durations, a safe and conservative assumption is that the load on a person standing in the free field is the sum of the side-on overpressure and the dynamic pressure. This hypothesis is supported by common knowledge about blast waves and is illustrated with numerical blast simulations.In a step by step derivation we present a new standard for the prediction of lethality caused by Friedlander blast waves, which will be included in the NATO Explosives Safety Manual AASTP-4. The result is a comprehensive engineering model that can be easily applied in calculations. © 2016 Elsevier Ltd. Subject Observation, Weapon & Protection SystemsEBP - Explosions, Ballistics & ProtectionTS - Technical SciencesBlastExplosionInjuryLethalityLungRiskBiological organsBlastingExplosionsRisksSafety engineeringDynamic pressuresEngineering modelingExplosives safetyGastrointestinal tractInjuryLethalityLungReflecting surfaceExplosives To reference this document use: http://resolver.tudelft.nl/uuid:a9b62216-77b5-444c-a5ce-b36dd7356bce DOI https://doi.org/10.1016/j.jlp.2016.01.014 TNO identifier 533060 Publisher Elsevier Ltd ISSN 0950-4230 Source Journal of Loss Prevention in the Process Industries, 40, 396-405 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.