Searched for: subject%3A%22Fem%22
(1 - 16 of 16)
document
Corley-Wiciak, C. (author), Richter, C. (author), Zoellner, M.H. (author), Zaitsev, I. (author), Manganelli, C.L. (author), Zatterin, E. (author), Schülli, T.U. (author), Corley-Wiciak, A.A. (author), Katzer, J. (author), Reichmann, F. (author), Klesse, W.M. (author), Hendrickx, N.W. (author), Sammak, A. (author), Veldhorst, M. (author), Scappucci, G. (author), Virgilio, M. (author), Capellini, G. (author)
A strained Ge quantum well, grown on a SiGe/Si virtual substrate and hosting two electrostatically defined hole spin qubits, is nondestructively investigated by synchrotron-based scanning X-ray diffraction microscopy to determine all its Bravais lattice parameters. This allows rendering the three-dimensional spatial dependence of the six strain...
article 2023
document
Liu, D. (author), van den Boom, S.J. (author), Simone, A. (author), Aragon, A.M. (author)
We propose an enriched finite element formulation to address the computational modeling of contact problems and the cou pling of non-conforming discretizations in the small deformation setting. The displacement field is augmented by enriched terms that are associated with generalized degrees of freedom collocated along non-conforming interfaces...
article 2022
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de Boer, J.G.G.M. (author), Hofmeyer, H. (author), Maljaars, J. (author), van Herpen, R.A.P. (author)
A self-supporting sandwich panel facade system under fire is studied. First, a thermomechanical FE model, which comprises the complete facade system, and incorporates material degradation and geometrical nonlinear behaviour except for the insulation material and connections, is loaded by a fire temperature curve. Eurocode design rules then...
article 2019
document
Bosschaart, C. (author), Jansen, H.W. (author), de Jong, C.A.F. (author), Basten, T. (author)
A concept for underwater machinery noise mitigation of future civil and military ships is the application of a common deck structure, supporting multiple machines, which is installed on resilient mounts on the ship's foundation structure. TNO is addressing the availability and testing of tools to be able to set realistic targets for the radiated...
conference paper 2017
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Couto, S. (author), Assembleia, A. (author), Visser, J.H.M. (author), Mayor, T.S. (author)
The performance of concrete products depends not only on the concrete compositions but also
article 2015
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Borsje, H. (author), Renier, B. (author), Burggraaf, H.G. (author)
In the summer of 2011 the Dutch football club FC Twente was building an extension of their stadium De Grolsch Veste, to increase the capacity of the stadium. On July 7th 2011, during construction, the roof of the partially finished extension collapsed. As a result of this accident two workers were killed and nine were injured, a few of them...
conference paper 2014
document
Verreault, J. (author)
The Penetrator with Enhanced Lateral Effect (PELE) is a type of explosive-free projectile that undergoes radial fragmentation upon an impact with a target plate. This type of projectile is composed of a brittle cylindrical shell (the jacket) filled in its core with a material characterized with a large Poisson's ratio. Upon an impact with a...
conference paper 2014
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Giger, S.B. (author), Clennell, M.B. (author), Harbers, C. (author), Clark, P. (author), Ricchetti, M. (author), ter Heege, J.H. (author), Wassing, B.B.T. (author), Orlic, B. (author)
A new type of direct shear apparatus has been developed to allow for deformation of large and intact rock samples under fluid-sealed conditions. The sealed cell was specifically designed to monitor changes to fluid flow across the evolving rupture surface to large displacements (=120. mm), and effective stress conditions up to 36. MPa. To...
article 2011
document
Gromala, P. (author), Duerr, J. (author), Dressler, M. (author), Jansen, K.M.B. (author), Hawryluk, M. (author), de Vreugd, J. (author)
Numerical simulation plays an important role in product design. Its accuracy relays on a detailed description of geometry, material models, load and boundary conditions. This paper focuses on a new approach of FEM material modeling of three commercially available molding compounds. Curing shrinkage, modulus of elasticity and coefficient of...
conference paper 2011
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TNO Bouw en Ondergrond (author), Peelen, W.H.A. (author), Vervuurt, A.H.J.M. (author)
Fire safety of buildings and structures is an important issue, and has a great impact on human life and economy. One of the processes negatively affecting the strength of a concrete building or structure during fire is spalling. Many examples exists in which spalling of concrete during fire has caused severe damage to structures, such as in the...
article 2008
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Mordaka, J. (author), Kleiven, S. (author), van Schijndel-de Nooij, M. (author), de Lange, R. (author), Casanova, L.J.G. (author), Carter, E.L. (author), von Holst, H. (author), TNO Industrie en Techniek (author)
The objective of the present study was to analyze the effect of angular kinematics on head injury in pedestrian head-to-windshield impacts. Three cases of pedestrian head impacts were simulated with FE head and windshield models. The initial impact conditions were obtained from pedestrian accident reconstructions carried out using multi-body...
conference paper 2007
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Verver, M.M. (author), van Hoof, J.F.A.M. (author), TNO Wegtransportmiddelen (author)
Higher demands by people on the performance of vehicles and the comfort-related physical complaints by professional drivers have led to an increasing demand for more comfortable cars. Car manufacturers use comfort as an item to distinguish themselves from their competitors. However, the development and introduction of a new, more-comfortable car...
conference paper 2003
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Gielen, A.W.J. (author), Lemmen, P.P.M. (author), TNO Wegtransportmiddelen (author)
The influence of car glazing on the safety of occupants and pedestrians is an important issue. Nearly half of the injuries during crashes are due to head injuries, from which a large portion is due to head contact with the windshield or side windows. In order to assess the behavior of windshields in impact, it is important that the fracture...
conference paper 2000
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Twisk, D. (author), van Ratingen, M.R. (author), Schrooten, M. (author), TNO Wegtransportmiddelen (author)
The paper describes the use of FE modeling in the design process of the new Q child dummies, in particular the upper thorax. The model has been used to optimize the design of the ribcage, by making the changes in rib mass, material thickness, properties, etc., so that the dummy response meets the design targets. With the current interest in the...
conference paper 1999
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Waarts, P.H. (author), Vrouwenvelder, A.C.W.M. (author), Instituut voor Bouwmaterialen en Bouwconstructies TNO (author)
The paper describes two well known but adapted methods for calculating the probability of failure of structures. First the First Order Reliability Method (FORM) is described using an adapted response surface. Secondly the Directional Sampling (DS) procedure is described using truncated stochastic distributions. Both methods are implemented in...
article 1999
document
Waarts, P.H. (author), Vrouwenvelder, A.C.W.M. (author)
In structural steel design the ultimate design limit is governed by full cross-sectional plasticity, where an elastic-perfectly plastic material behaviour is used. Hardening of the material is not used. Some loads are not considered such as settlements of supports and temperature loads in static indeterminate structures. The Stochastic Finite...
conference paper 1996
Searched for: subject%3A%22Fem%22
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