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García, Á. (author), Schlangen, E. (author), Van de Ven, M. (author), Van Vliet, D. (author)The objective of this research is to examine the induction heating of mastic through the addition of electrically conductive fillers and fibers (graphite and steel wool), and to prove that this material can be healed with induction energy. The effect of fibers content, sand–bitumen ratio and the combination of fillers and fibers on the induction...journal article
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García, A. (author), Schlangen, E. (author), Van de Ven, M. (author), Van Vliet, D. (author)It is well known that the healing rates of asphalt courses increase with the temperature. A new method, induction heating, is used in this paper to increase the lifetime of asphalt concrete pavements. Mastic will be first made electrically conductive by the addition of conductive fibers. Then it will be heated via induction energy. This will...journal article
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- Wanhill, R.J.H. (author), de Rijk, P. (author) report 1973
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van Leeuwen, H.P. (author), Schra, L. (author)The literature is reviewed with respect to: - tests conducted to investigate crack re-initiation under dynamic load and arrest of a running crack - metallurgical sources of rate effects - available data for aerospace engineering materials - mechanical sources of rate effects, i.e. dynamic crack tip stresses and kinetic energy effects Conclusions...report 1975
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van Leeuwen, H.P. (author)Internal hydrogen embrittlement, stress corrosion cracking and external hydrogen embrittlement of high strength steel are analysed. They are found to have lattice decohesion as a common source.report 1976
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van Leeuwen, H.P. (author), de Rijk, P. (author), Boogers, J.A.M. (author), Huisman, H.N. (author), Wanhill, R.J.H. (author)Circumferentially notched round specimens of 4340 type steel have been plated in a galvanic bath known to be embrittling. The specimens were reclaimed by stripping and baking. Half the specimens were replated in a non-embrittling bath. Reclamation did not remove all traces of hydrogen embrittlement, but raised the threshold stress to such a...report 1979
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van Leeuwen, H.P. (author)The literature concerning the application of fracture mechanics to the growth of creep cracks is discussed. As an introduction it is shown that linear elastic fracture mechanics have been applied successfully to the residual strength of brittle materials crack growth due to stress corrosion and crack growth due to fatigue. Next the methods are...report 1983
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van Leeuwen, H.P. (author)The concept of fugacity is explained. Application of compressibility and fugacity data in hydrogen embrittlement calculations is discussed. Equations of state are reviewed. Compressibility factors and fugacity coefficients are calculated. A best estimate is proposed.report 1983
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Lapidaire, P.J.M. (author)The purpose of the subproject "Pipe Dynamics" was to develop a numerical model that can be used to determine the response of a pipeline in free span loaded by waves and/or current, and to evaluate the probability that the stresss in the pipeline will exceed the yield stres of steel under specified conditions.master thesis 1984
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Jansen, J.D. (author)Part I: The computer program INTRA models the collapse behavior of trusswork offshore structures with the aid of two types of elements: 'Beam-column' elements, designed to simulate bending dominated failure of structural members, and 'strut' elements, that can represent normal force dominated failure. The behavior of both types of INTRA elements...master thesis 1986
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- De Borst, R. (author) journal article 1987
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Van den Berg, G.M. (author)De huidige voorschriften voor het ontwerpen van staal-grout- staal verbindingen zijn opgesteld voor de verbinding van funderingspalen aan funderingssleeves. Deze voorschriften baseren zich mede op de aanname dat de schuifspanning op het contactvlak staal-grout gelijkmatig over de hoogte van de verbinding is verdeeld. Ook in het Tripod Tower...master thesis 1988
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Wanhill, R.J.H. (author)The opportunities for sustained load fracture control in spacecraft are indicated. Emphasis is given to verification by small-scale laboratory testing.report 1989
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- De Borst, R. (author), Peeters, P.P.J.M. (author) journal article 1989
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- Feenstra, P.H. (author), De Borst, R. (author), Rots, J.G. (author) conference paper 1991
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- Sluys, L.J. (author), De Borst, R. (author) journal article 1992
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Kolkman, P.A. (author)Algemene beschouwingen, cavitatie-inceptie getallen bij schuiven, voorwerpen en wandenreport 1992
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- Kaminski, M.L. (author) doctoral thesis 1992
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- Geerlofs, N. (author), Brakman, C.M. (author), Colijn, P.F. (author), Van der Zwaag, S. (author) conference paper 1994
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- Krielaart, G.P. (author), Onink, M. (author), Brakman, K.M. (author), Tichelaar, F.D. (author), Mittemeijer, E.J. (author), Van der Zwaag, S. (author) journal article 1994