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Fan, J.T. (author), Weerheijm, J. (author), Sluys, L.J. (author)The dynamic tensile mechanical response of a soft polymer material (Clear Flex 75) is investigated using a split Hopkinson tension bar (SHTB). Stress-strain relations are derived to reveal the mechanical properties at moderate and high strain rates. These relations appear to be rate dependent. Under static loading, the polymer exhibits an...article 2015
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Fan, J.T. (author), Weerheijm, J. (author), Sluys, L.J. (author)The glass interface effect on dynamic tensile response of a soft polyurethane elastomeric polymer material has been investigated by subjecting a glass-polymer system of this polymer material matrix embedded a single 3 mm-diameter glass particle to impact loading in a split Hopkinson tension bar (SHTB) setup. The characteristics of the dynamic...article 2015
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Wentzel, C.M. (author), Carton, E.P. (author), Kloosterman, A. (author), TNO Defensie en Veiligheid (author)Against the manufacturing requirement for both lower lead time and reduced machining time for titanium components, a new concept was conceived assembling sheet material and other stock into semi finished parts by (explosive) impact welding. It is believed that this concept (which we named SLAM) could be especially beneficial for titanium alloy...conference paper 2006
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Mertens, B.M. (author), Weiss, M. (author), Meiling, H. (author), Klein, R. (author), Louis, E. (author), Kurt, R. (author), Wedowski, M. (author), Trenkler, H. (author), Wolschrijn, B.T. (author), Jansen, R. (author), van de Runstraat, A. (author), Moors, R. (author), Spee, C.I.M.A. (author), Plöger, S. (author), van de Kruijs, R. (author), Technisch Physische Dienst TNO - TH (author)Optics lifetime and contamination is one of the major challenges for extreme ultraviolet (EUV) lithography. The basic contamination and lifetime limiting processes are carbon growth and oxidation of the mirrors. Without appropriate measures, optics lifetime will be limited to a few hours. Within the EUV α-tool project of ASML and Carl Zeiss,...article 2004
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Feenstra, P.H. (author), de Borst, R. (author), TNO Bouw (author)A composite yield function is used to describe the behavior of plain and reinforced concrete in biaxial stress under monotonic loading conditions. A Rankine yield criterion is used to monitor the in-plane tensile stresses and a Drucker Prager yield function controls the compressive stresses. A good agreement with experimental data for biaxial...article 1996