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Weerheijm, J. (author), Stolz, A. (author), Riedel, W. (author), Mediavilla Varas, J. (author)The Klotz Group (KG), an international group of experts on explosion safety, investigates the debris throw hazard associated with the accidental detonation of ammunition in reinforced concrete (RC-) structures. Experiments are combined with engineering models but also with results of advanced computational modeling, which is the topic of this...conference paper 2012
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- van Doormaal, J.C.A.M. (author), Verhagen, T.L.A. (author), Mediavilla Varas, J. (author), Luyten, J.M. (author) conference paper 2011
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- van Doormaal, J.C.A.M. (author), Luyten, J.M. (author), Mediavilla Varas, J. (author) conference paper 2011
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Mediavilla Varas, J. (author), Philippens, M.M.G.M. (author), Meijer, S.R. (author), van den Berg, A.C. (author), Sibma, P.C. (author), van Bree, J.L.M.J. (author), de Vries, D.V.W.M. (author)Shock tube experiments and simulations are conducted with a spherical gelatin filled skull- brain surrogate, in order to study the mechanisms leading to blast induced mild traumatic brain injury. A shock tube including sensor system is optimized to simulate realistic impro-vised explosive device blast profiles obtained from full scale field...article 2011
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Mediavilla Varas, J. (author), Philippens, M.M.G.M. (author), Meijer, S.R. (author)The objective of this research is to understand the blast propagation into the human skull and brain causing mTBI and use this knowledge for enabling design of effective protection measures against them. A shock tube including sensor system was optimized to simulate realistic IED blast profiles obtained from full scale field tests. Shock tube...conference paper 2010
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TNO (author), Mediavilla Varas, J. (author), Soetens, F. (author), Kroon, E. (author), van Aanhold, J.E. (author), van der Meulen, O.R. (author), Sagimon, M. (author)The dynamic behavior of three commonly used airplane fuselage materials is investigated, namely of Al2024-T3, Glare-3 and CFRP. Dynamic tensile tests using a servo-hydraulic and a light weight shock testing machine (LSM) have been performed. The results showed no strain rate effect on Al2024-T3 and an increase in the failure strain and failure...conference paper 2010
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- Mediavilla Varas, J. (author), Soetens, F. (author) conference paper 2010
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Mediavilla Varas, J. (author), Weerheijm, J. (author), van Doormaal, J.C.A.M. (author), Rhijnsburger, M.P.M. (author), TNO Defensie en Veiligheid (author), DenV (author)This paper deals with the effect of an internal explosion of cased ammunition in RC magazine structures. By means of a numerical approach, the main differences between the effect of a bare and cased charge are illustrated. A bottom-up strategy has been implemented which is based on modeling the single fragment impact, and enables to compute a...conference paper 2009
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van der Meulen, O.R. (author), Mediavilla Varas, J. (author), Weerheijm, J. (author), Soetens, F. (author), TNO Defensie en Veiligheid (author)Dynamic crack propagation of pressurized aluminum vessels has been studied. Rate insensitive cohesive zone models overpredict the rate of fracture. This was the motivation to implement a new Perzyna cohesive zone model and which is able to explain the low measured crack speeds.conference paper 2009
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- Tyler-Street, M.D. (author), Luyten, J.M. (author), Mediavilla Varas, J. (author) conference paper 2007
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- Tyler-Street, M.D. (author), Luyten, J.M. (author), Mediavilla Varas, J. (author) conference paper 2007