Searched for: author%3A%22Weerheijm%2C+J.%22
(81 - 100 of 101)

Pages

document
Suddle, S.I. (author), Ale, B.J.M. (author), Weerheijm, J. (author), Waarts, P.H. (author), TNO Bouw en Ondergrond (author)
Buildings above roads and railways are examples of multiple use of space. Safety is one of the critical issues for such projects. This paer will propose effects of safety measures for multiple use of space projects for critical scenarios i.e. fires, explosions, release of toxic substances and mechanical accidents
article 2006
document
Weerheijm, J. (author), TNO Defensie en Veiligheid (author)
The rate effect on concrete tensile strength can be modeled by the description of crack extension in a fictitious fracture plane [1,2].The plane represents the initial, internal damage and the geometry of the final fracture plane. In the paper, the same approach is applied to model the failure envelope for the biaxial loading condition of static...
article 2006
document
Vegt, I. (author), Pedersen, R.R. (author), Sluys, L.J. (author), Weerheijm, J. (author)
The last few years, explosion scenarios in tunnels and the potential hazards from storage of high energetic materials have received significant attention. Moreover, due to terrorist attacks, structures that can withstand explosions have become a major concern. For the modelling of the behaviour of concrete structures under the explosive loading...
conference paper 2006
document
TNO Defensie en Veiligheid (author), van den Berg, A.C. (author), van der Voort, M.M. (author), Weerheijm, J. (author), Versloot, N.H.A. (author)
This report presents a new method to calculate the blast effects originating from an exploding vessel of liquefied gas. Adequate blast calculation requires full knowledge of the blast source characteristics, that is, the release and subsequent evaporation rate of the flashing liquid. Because the conditions that allow explosive evaporation are...
article 2006
document
Weerheijm, J. (author)
For the numerical prediction of the response of concrete structures under extreme dynamic loading reliable material data and material models are essential. TNO-Prins Maurits Laboratory and the Delft University of Technology collaborate in the field of impact dynamics and concrete modelling. The aim is to develop a (numerical) material model that...
conference paper 2005
document
Schlangen, E. (author), Lim, H.S. (author), Weerheijm, J. (author), TNO Defensie en Veiligheid (author)
In the study the effect of scaling the material structure on the fracture behaviour of concrete is investigated. Next to this the size effect of concrete fracture strength and fracture energy is studied. The fracture mechanism of concrete made with different size aggregates are tested numerically. A lattice type fracture model is adopted to...
conference paper 2005
document
TNO Defensie en Veiligheid (author), Weerheijm, J. (author), van Doormaal, J.C.A.M. (author), van Breugel, K. (author)
The behaviour of dynamically loaded structures, like concrete containment structures and blast resistant control buildings, can be analysed with advanced numerical techniques as well as with less laborious engineering methods. Most used simplified method is the Single Degree of Freedom (SDOF) method, or the so-called Biggs method [1]. This paper...
conference paper 2005
document
Pedersen, R.R. (author), Sluys, L.J. (author), Weerheijm, J. (author), Simone, A. (author)
For a numerical prediction of the response of concrete structures under extreme dynamic loading, reliable material data and material models are crucial. A modified Split Hopkinson Bar, SHB, test methodology is used to determine the material properties in tension at high loading rates which are used in numerical models simulating progressive...
conference paper 2005
document
Weerheijm, J. (author), van Dongen, P. (author), van der Voort, M.M. (author), Wentzel, C.M. (author)
conference paper 2004
document
Suddle, S.I. (author), Ale, B.J.M. (author), Waarts, P.H. (author), Weerheijm, J. (author), TNO Bouw (author)
Buildings above roads and railways are examples of multiple use of space. Safety is one of the critical issues for such projects. This paper will propose effects of safety measures for multiple use of space projects for critical scenarios i.e. fires, explosions, release of toxic substances and mechanical accidents.
conference paper 2003
document
Weerheijm, J. (author), van den Berg, A.C. (author), Versloot, N.H.A. (author), Prins Maurits Laboratorium TNO (author)
conference paper 2003
document
Weerheijm, J. (author), van den Berg, A.C. (author), Rhijnsburger, M.P.M. (author), van Doormaal, J.C.A.M. (author), Prins Maurits Laboratorium TNO (author)
In the Netherlands, future road and rail infrastructure is increasingly projected underground or covered in. In this respect, a particular problem shows up with regard to the transportation hazardous materials, witness the many recent severe accidents in European traffic tunnels. Within the entire spectrum of risk of hazardous materials...
conference paper 2002
document
van Doormaal, J.C.A.M. (author), Weerheijm, J. (author), Prins Maurits Laboratorium TNO (author)
conference paper 2001
document
Weerheijm, J. (author), van Doormaal, J.C.A.M. (author), Prins Maurits Laboratorium TNO (author)
For the numerical prediction of the response of concrete structures under extreme dynamic loading, like missile impact and internal explosions, reliable material data and material models are essential. But knowledge of the response of concrete at high loading rates is still very limited. At request of the Dutch MOD, TNO studies the possibilities...
conference paper 2001
document
Prins Maurits Laboratorium TNO (author), van Doormaal, J.C.A.M. (author), Weerheijm, J. (author), Absil, L.H.J. (author)
In this paper blast experiments on simply supported reinforced concrete slabs are described. The resistance-deformation curves and the deformation capacity of the slabs have been determined. Parameters in the experiments were the thickness of the slab, the amount of bending reinforcement, the diameter of the bending reinforcement and the type of...
conference paper 1997
document
van Doormaal, J.C.A.M. (author), Weerheijm, J. (author), Prins Maurits Laboratorium TNO (author)
In this paper a test method to determine the deformation capacity and the resistance-deformation curve of blast-loaded slabs is described. This method was developed at TNO-PML. The method has been used to determine the ultimate deformation capacity of some simply supported reinforced concrete slabs in order to increase the knowledge of this...
conference paper 1996
document
van Dongen, P. (author), van der Kasteele, R.M. (author), Weerheijm, J. (author), Prins Maurits Laboratorium TNO (author)
conference paper 1995
document
Prins Maurits Laboratorium TNO (author), Absil, L.H.J. (author), Kodde, H.H. (author), Weerheijm, J. (author)
Noise pollution around military training facilities caused by firing of explosives, artillery or large caliber guns poses a severe problem to neighbouring communities. One possible way to attenuate the blast is the construction of blast walls close to the explosion center. This paper describes a combined experimental and numerical study of the...
conference paper 1995
document
van Doormaal, J.C.A.M. (author), Weerheijm, J. (author), Sluys, L.J. (author)
In an experimental programme, impact tensile tests were performed on notched and unnotched specimens in a Split Hopkinson Bar apparatus to determine the dynamic fracture energy of concrete. The results have been compared to static experiments. In order to distinguish structural and material response the experiments were numerically simulated....
article 1994
document
Prins Maurits Laboratorium TNO (author), Weerheijm, J. (author)
doctoral thesis 1992
Searched for: author%3A%22Weerheijm%2C+J.%22
(81 - 100 of 101)

Pages