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Frijns, R.M.W. (author), Adyanthaya, S. (author), Stuijk, S. (author), Voeten, J.P.M. (author), Geilen, M.C.W. (author), Schiffelers, R.R.H. (author), Corporaal, H. (author)Analyzing worst-case application timing for systems with shared resources is difficult, especially when non-monotonic arbitration policies like First-Come-First-Served (FCFS) scheduling are used in combination with varying task execution times. Analysis methods that conservatively analyze these systems are often based on state-space exploration,...conference paper 2014
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Brust, H. (author), Willemse, S. (author), Zeng, T. (author), van Asten, A. (author), Koeberg, M. (author), van der Heijden, A.E.D.M. (author), Bolck, A. (author), Schoenmakers, P. (author)In this work, a reliable and robust vacuum-outlet gas chromatography-mass spectrometry (GC-MS) method is introduced for the identification and quantification of impurities in trinitrotoluene (TNT). Vacuum-outlet GC-MS allows for short analysis times the analysis of impurities in TNT was performed in 4. min. This study shows that impurity...article 2014
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Carton, E.P. (author), Roebroeks, G.H.J.J. (author), Broos, J.P.F. (author), Halls, V. (author), Zheng, J. (author)In order use material models in (numerical) calculations, the mechanical properties of all materials involved should be known. At TNO an indirect method to determine the dynamic flow stress of materials has been generated by a combination of ballistic penetration tests with an energy-based engineering model. For visco-elasto-plastic materials,...conference paper 2014
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Roebroeks, G.H.J.J. (author), Carton, E.P. (author)TNO has developed an engineering model for flexible body armor, as one of their energy based engineering models that describe the physics of projectile to target interactions (weaves, metals, ceramics). These models form the basis for exploring the possibilities for protection improvement. This presentation describes how the main physical...conference paper 2014
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Weerheijm, J. (author), van den Berg, A.C. (author)Tunnel accidents with transports of dangerous goods may lead to explosions. Risk assessment for these accidents is complicated because of the low probability and the unknown, but disastrous effects expected. Especially the lack of knowledge on the strength of the explosion and the consequences for the tunnel user, the tunnel lining and the...conference paper 2014
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van Lingen, J.L.N. (author), Meuken, D. (author), Hackspik, M.M. (author), Mäkeläinen, T. (author), Weiser, V. (author), Poulson, G.W. (author)This poster describes the work done within the Category B joint research project under the European Defence Agency (EDA) on Future Flare Compositions [1]. Contributing members were Finland, Germany, United Kingdom and the Netherlands. The program was aimed to identify the technology gaps that apply to countermeasures against future IR/EO threats...conference paper 2014
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Philippens, M.A.G. (author), Anctil, B. (author), Markwardt, K.C. (author)The majority of methods to assess the behind armour blunt trauma (BABT) risk for ballistic helmets is based on plastic deformable headforms. An alternative, the Ballistic Load Sensing Headform (BLSH) can record the dynamic contact force between helmet back face and the skull. Helmet BABT methods are still under development and outcomes are...conference paper 2014
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Bedon, C.C.K. (author), van Doormaal, J.C.A.M. (author), Haberacker, C. (author), Hüsken, G. (author), Larcher, M. (author), Saarenheimo, A. (author), Solomos, G. (author), Stolz, A. (author), Thamie, L. (author), Valsamos, G. (author)It is important to protect critical buildings (shopping centres, government buildings and embassies), infrastructure and utilities, train and underground stations against being damaged, destroyed or disrupted by deliberate acts of terrorism, criminal activity and malicious behaviour. Normal regulations and building guidelines do not generally...report 2014
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Scholtes, G. (author)In the scope of the co-operation within the EDA on Insensitive Munitions and ageing, TNO has carried out an investigation on the effects of ageing on the vulnerability characteristics of energetic materials. For this study pristine and accelerated aged RDX-based polymer bonded explosives (PBX) have been subjected to laboratory and insensitive...conference paper 2014
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Tuukkanen, I.M. (author), Bouma, R.H.B. (author)Subgroup A Energetic Materials Team, SG/A (EMT), develops and maintains standards that are relevant to all life-cycle phases of ammunition/weapon systems. STANAG 4147 is the standard regarding chemical compatibility of explosives with munition components, and is a document of prime importance. Currently the 3rd edition of STANAG 4147 has been...conference paper 2014
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Carton, E.P. (author), Weerheijm, J. (author), Ditzhuijzen, C. (author), Tuinman, I. (author)The fragmentation of ceramic tiles under ballistic impact has been studied. Fragments and aerosol (respirable) particles were collected and analyzed to determine the total surface area generated by fracturing (macro-cracking and comminution) of armor grade ceramics. The larger fragments were collected and the mass distribution was obtained from...conference paper 2014
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Roebroeks, G. (author), Carton, E.P. (author)At TNO mind sized engineering models are created for specific penetration conditions. The models are energy based and calculate the energy absorbed by target deformation (strain energy) and displacement (kinetic energy). The input parameters are restricted to basic target material properties (density, Young’s modulus), impact velocity, mass and...conference paper 2014
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Carton, E.P. (author), Roebroeks, G.H.J.J. (author)TNO has developed an alternative, more configuration independent ceramic test method than the standard Depth-of-Penetration test method. In this test ceramic tiles and ceramic based armor are evaluated as target without a semi-infinite backing layer. An energy approach is chosen to evaluate and rank the target materials penetration resistance....conference paper 2014
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Tyler-Street, M. (author)Structural design methods for naval ships include environmental, operational and military load cases. One of the operational loads acting on a typical naval vessel is the muzzle blast from a gun. Simulating the muzzle blast load acting on a ship structure with CFD and ALE methods leads to large numerical models with high CPU requirements as a...conference paper 2014
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- Hooijmeijer, P.A. (author), de Bes, J.B. (author), de Klerk, W.P.C. (author), Henzing, B. (author) conference paper 2014
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Philippens, M.A.G. (author), van Renswoude, K. (author), van Schie, K. (author)Depth, diameter and volume of dents in clay backing of soft and hard body armour are used to assess the protective performance of such vests. The characteristics of the dents are traditionally measured manually. Optical scan techniques are becoming more popular and provide an objective method compared to the manual method and it allows to...conference paper 2014
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C, K. (author), van Doormaal, J.C.A.M. (author), Haberacker, C. (author), Hüsken, G. (author), Larcher, M. (author), Saarenheimo, A. (author), Solomos, G. (author), Stolz, A. (author), Thamie, L. (author), Bedon, C. (author)It is important to protect critical buildings (shopping centres, government buildings and embassies), infrastructure and utilities, train and underground stations against being damaged, destroyed or disrupted by deliberate acts of terrorism, criminal activity and malicious behaviour. Normal regulations and building guidelines do not generally...report 2014
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de Klerk, W.P.C. (author), Hooijmeijer, P. (author), van Harmelen, P. (author)In the Netherlands, no national industry in the field of energetic materials / ammunition for military applications is available. The knowledge of explosives, ammunition and ammunition on the vulnerability of platforms is limited, first to Defence regarding the logistical and operational practice and, second, to TNO and focuses mainly on...conference paper 2014
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Reus, M.A. (author), Hoetmer, G. (author), van der Heijden, A.E.D.M. (author), ter Horst, J.H. (author)Concomitant crystallization leads to process intensification through the synergistic combination of the partial processes of particle formation and encapsulation within a single process step. Both cooling and electrospray crystallization in multi-component solutions were used to create (sub-)micron sized particles of different crystalline...article 2014
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- Diederen, A.M. (author) conference paper 2013