- document
-
Ottens, H.H. (author)The component mode technique is used to calculate resonance frequencies and vibration modes of the Northrop NF-5 structure. The results of the calculations are compared with those of a ground vibration test.report 1975
- document
-
Labrujere, T.E. (author), Roos, R. (author), Erkelens, L.J.J. (author)A survey is given of the basic principles of the panel methods. The most frequently used methods, steady as well as unsteady, are described in some detail. Recent developments aiming at improvönent and extension of the range of applicability are reviewed. The use of panel methods for the determination of stability derivatives is discussed....report 1977
- document
-
Wiggenraad, J.F.M. (author)A finite element model has been developed, which incorporates the bending-torsional coupling effect, as it occurs in general orthotropic, midplane symmetric, elastic plates in order to analyse its influence on the buckling behaviour of such plates. Some results have been compared with known exact and approximate solutions.report 1977
- document
-
van Woerkom, P.T.L.M. (author)Software design for digital computer simulation of the dynamics of flexible spacecraft equipped with actuators and sensors, should take into account two properties of the overall system: (i) s.ampled-data control of the spacecraft leads to discontinuous inputs (forcing functions) in the differential equations of motion, thereby requiring...report 1983
- document
-
de Koning, A.U. (author)This study deals with fracture mechanics aspects of mode 1 crack growth under montonically increasing (quasi-static) loads. Using the finite element method stable crack growth and the plastic deformation fields associated with this process are analyzed. A two parameter approach is proposed for a description of initiation and subsequent stable...report 1985
- document
-
de Boer, A. (author), Riks, E. (author)In this report a description is given of the nonlinear package of B2000. The set-up of the continuation procedure which controls the nonlinear calculations is explained. At some points the existing continuation procedure was modified to enhance its performance. The nonlinear package contains a nonlinear rod element and a nonlinear thick shell...report 1988
- document
-
Riks, E. (author), Merazzi, S. (author), de Boer, A. (author)In many practical problems of plate and shell buckling, the pre-buckling state is linear and can be obtained from the linearized equations of elasticity. The computation of the buckling load and mode in such cases correponds to a linear eigenvalue problem that can easily be formulated and implemented in a finite element code. This report...report 1988
- document
-
Laméris, J. (author), Minderhoud, P. (author)The mechanical behaviour of mechanically fastened double lap carbon-epoxy joints has been investigated both by experiments (static tests) and by analysis. Several fastener types and joint geometries has been investigated. In the experimental programme the Fibredux 6376/T400H material was used. Two methods to analyze mechanically fastened...report 1989
- document
-
de Boer, A. (author), Ellenbroek, M.H.M. (author)A description is given of the second problem, a clamped-free truss structure, defined in the GARTEUR Action Group 11. The measured and calculated modal data of the structure are correlated, the locations of the errors are determined and finally the finite element model of the structure is updated. These analyses are performed with the B2000...report 1990
- document
-
Ellenbroek, M.H.M. (author), de Boer, A. (author)Fokker Space and Systems and the National Aerospace Laboratory NLR performed a study to integrate more systematically the experimental and analytical analysis of the dynamic behaviour of structures. The study focused on the correlation of experimental and analytical data, matrix and parameter updating methods. In this paper an overview will be...report 1993
- document
-
Arendsen, P. (author), van Dalen, F. (author), Bill, C. (author), Rothwell, A. (author)In a joint research project between the National Aerospace Laboratory (NLR) and the Faculty of Aerospace Engineering of Delft University of Technology (TUD) a multi-level system for the preliminary design of aircraft structures has been developed. The present system is essentially an extension of the existing Aircraft Design and Analysis System ...report 1995
- document
- Fawaz, S. (author) report 1996
- document
-
de Koning, A.U. (author), Henriksen, T.K. (author)Probably one of the most challenging problems in fracture mechanics is related to its application to fastener and joints. By nature, not only the quality such as material, manufacturing and mounting processes, of the fasteners are playing a role, but also the stiffness, surface conditions and geometry of the parts are to be considered. Moreover,...report 1996
- document
- Lodewijks, G. (author) doctoral thesis 1996
- document
- Lager, I.E. (author) doctoral thesis 1996
- document
-
Kullaa, J. (author)The tensile constitutive behaviour of fibre-reinforced brittle materials can be extended to two or three dimensions by using the finite element method with crack models. The three approaches in this study include the smeared and discrete crack concepts and a multi-surface plasticity model. The tensile relation represents the crack normal stress...journal article 1997
- document
- Rebel, G. (author) doctoral thesis 1998
- document
- De Bondt, A.H. (author) doctoral thesis 1999
- document
- Schwab, A.L. (author) doctoral thesis 2002
- document
-
Van Ostayen, R.A.J. (author)The "classic" solution for the support of a translating lockgate, the wheelonrail support, has relatively high construction as well as inspection and maintenance costs. An alternative support which has previously been developed for use in the Prins WillemAlexander lock is the socalled "hydrosupport", a hydrostatic thrust bearing that slides on...doctoral thesis 2002