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document
van Straalen, IJ.J. (author)
During tthe 1990's the higher-order theory was developed by Frostig to enable detailed stress analyses of sandwich panel structures. To investigate the potentials of this approach experiments are performed on sandwich panels made of thin steel faces and mineral wool or polystyrene core material. A proposal for a useful prediction model based on...
conference paper 2000
document
Davies, P. (author), Bigourdan, B. (author), Chaudot, P. (author), Choqueuse, D. (author), Ferreira, A. (author), Karjalainen, J.P. (author), Hildebrand, M. (author), Mustakangas, M. (author), Gaarder, R. (author), Carli, F. (author), van Straalen, IJ.J. (author), Sargent, J.P. (author), Adams, R.D. (author), Broughton, J. (author), Beevers, A. (author)
This paper presents results from analytical and finite elenent modelling of the response of a wide foam core sandwich beam to uniform pressure loading. New tests have been performed using an image analysis system which allows core shear strain mapping. Predicted panel displacenpnts and strains are compared with npasured values for load levels...
conference paper 2000
document
van Straalen, IJ.J. (author)
The design of structures is concemed with the generation of solutions and the verification of the reliability. potential design solutions are a result of a process of problem formulation, definition of objeciive functions, conceptual design and optimization. To control this process, many strategies have been developed over the years. An example...
conference paper 2000
document
van Straalen, IJ.J. (author)
This paper deals with the development of design rules for structural adhesive bonded joints. In daily practice engineers are confronted with the problem to verify the safety of their designs. Setting up an experimental programme can do this. For the marine, transport, building and civil engineering sectors this will not be an option, because it...
conference paper 2000
document
van Straalen, IJ.J. (author)
public lecture 2000
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Botter, H. (author), van den Berg, A. (author), Soetens, F. (author), van Straalen, IJ.J. (author), Vogelesang, L.B. (author), TNO Bouw (author)
Using two types of adhesively bonded aluminium joints, a TAST specimen and a specifically designed stiff double lap joint, experiments show that the (apparent) yield stress, the amount of plastic flow and the occurence of strain hardening is influenced by the surface pre-treatment used for an Al-Mg-Si aluminium alloy adherend. Grit blasted...
conference paper 2001
document
van Straalen, IJ.J. (author), TNO Bouw (author)
article 2001
document
van Straalen, IJ.J. (author), TNO Bouw (author)
Dit artikel behandelt de ontwikkeling van rekenregels voor het ontwerpen van lijmverbindingen in constructies. In de dagelijkse praktíjk worden constructeurs geconfronteerd met het probleem om de veiligheid van hun ontwerpen te controleren. De opzet van een experimenteel programma kan hierin voorzien. Voor de scheepvaart, de transportsector, de...
article 2001
document
Botter, H. (author), Kool, H.D.M. (author), van Straalen, IJ.J. (author), Soetens, F. (author), TNO Bouw (author)
conference paper 2001
document
Botter, H. (author), Wijen, H.L.M. (author), van den Berg, A. (author), Soetens, F. (author), van Straalen, IJ.J. (author), Vlot, A. (author), TNO Bouw (author)
Recent developments in hardware and software have allowed traditional speckle pattern. interferom.etry using photographic film to be replaced by digital video CCD cameras and sophisticated analysing software. Real-time in-situ displacement measurement of specimens under static or cyclic loads is now possible. In this paper the use of an...
conference paper 2001
document
van Straalen, IJ.J. (author), TNO Bouw (author)
doctoral thesis 2001
document
Maljaars, J. (author), Steenbergen, H.M.G.M. (author), Stark, J.W.B. (author), Abspoel, R. (author), TNO Bouw (author)
The lateral torsional buckling resistance of girders depends on the support conditions. In floor structures for buildings, coped girders are often used. A numerical model was developed to research the influence of copes on lateral buckling resistance. The model is successfully validated with tests. This paper describes the background of the...
conference paper 2002
document
van Straalen, IJ.J. (author), TNO Bouw (author)
public lecture 2002
document
van Straalen, IJ.J. (author), TNO Bouw (author)
conference paper 2002
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Maljaars, J. (author), Fellinger, J. (author), Soetens, F. (author), TNO Industrie en Techniek (author), IenT (author)
Material properties and mechanical response models for fire design of steel structures are based on extensive research and experience. Contrarily, the behaviour of aluminium load bearing structures exposed to fire is relatively unexplored. This article gives an overview of physical and mechanical properties at elevated temperature of frequently...
article 2005
document
Lubelli, B.A. (author), TNO Bouw en Ondergrond (author)
doctoral thesis 2006
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TNO Bouw en Ondergrond (author), Vrouwenvelder, A.C.W.M. (author), Gijsbers, F.B.J. (author)
report 2008
document
van Straalen, IJ.J. (author)
public lecture 2010
document
Pijpers, R.J.M. (author), Kolstein, M.H. (author)
An effective application of Very High Strength Steel (VHSS) in civil engineering structures is expected in stiff, truss like structures, typically made of Circular Hollow Sections (CHS). Use of castings in combination with CHS could be promising for the design of highly fatigue resistant joints. Cast steel and CHS are more and more applied in...
conference paper 2010
document
Böhms, H.M. (author), TNO Bouw en Ondergrond (author)
Buildings are one of the major contributors to energy use and CO 2 emissions. The energy used in buildings accounts for about 40% of the total energy use in Europe. The main aim of the IntUBE project (http://www.intube.eu) is to develop intelligent Information and Communications Technologies (ICT) to improve the energy efficiency of these...
conference paper 2010
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