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NUMERICAL INVESTIGATION OF ALUMINIUM PLATES SUBJECTED TO BLAST LOADING USING ARBITRARY LAGRANGIAN EULERIAN AND LAGRANGIAN APPROACHES Vrije Universiteit Brussel
This paper deals with the non-linear dynamic behavior of thin Aluminium
plates subjected to blast loading. Aluminium plates with grade EN AW-1050A-H24
are studied. The square specimens have an area of interest of 300*300mm2 and
a thickness of 2.5mm. The blast loading is generated using free air blast (FAB)
and explosive driven shock tube (EDST). A numerical finite element model (FEM)
using the commercial ...
plates subjected to blast loading. Aluminium plates with grade EN AW-1050A-H24
are studied. The square specimens have an area of interest of 300*300mm2 and
a thickness of 2.5mm. The blast loading is generated using free air blast (FAB)
and explosive driven shock tube (EDST). A numerical finite element model (FEM)
using the commercial ...
On the detection of closing delaminations in laminated composite plates using the structural intensity method Universiteit Gent
{In recent years, the concept of Nonlinear Structural Intensity (NSI) has been applied to detect fatigue cracks and loose joints in isotropic structures. This paper extends the NSI concept to orthotropic and anisotropic materials and investigates the possibility to use NSI for the localization of a closing delamination in thin laminated plates. When the delamination is excited by a high frequency interrogation signal, the periodic contact ...
Magnetic shielding of buried high-voltage (HV) cables by conductive metal plates Universiteit Gent
Purpose - To study the magnetic shielding of buried high-voltage (HV) cables by adding conductive metal plates on the ground surface above the cables.Design/methodology/approach - The field is calculated with eight rectangular conductive plates above the cables, positioned with their long edge either parallel to the cables or transversal to the cables. Here, the circuit method is used. In this method, the shield is replaced by a grid of straight ...
The dynamic bending analysis of plates under thermal load using an efficient wave-based method KU Leuven
The efficient Wave-Based Method (WBM) is extended to predict the bending vibration response of thin-walled rectangular plates under thermal load. Governing equations of dynamic plate bending problems considering thermal effects are first introduced. The general solution and particular solution of governing equation are derived by the separate variable method and residue theorem, respectively. Then novel wave functions and particular solution ...
Isogeometric collocation for Kirchhoff–Love plates and shells KU Leuven
With the emergence of isogeometric analysis (IGA), the Galerkin rotation-free discretization of Kirchhoff-Love shells is facilitated, enabling more efficient thin shell structural analysis. High-order shape functions used in IGA also allow the collocation of partial differential equations, avoiding the time-consuming numerical integration of the Galerkin technique. The goal of the present work is to apply this method to NURBS-based isogeometric ...
Dual energy CT-based characterization of x-ray attenuation properties of breast equivalent material plates KU Leuven
Breast density is more and more considered as an important risk factor for breast cancer and several quantitative breast density evaluation methods have been proposed. The reference material for simulation of the breast attenuation properties of glandular and adipose breast tissues is manufactured by a single provider. In order to characterize the attenuation properties of these materials, measurements in Hounsfield Units (HU) have been ...
An investigation into the sound insulation of finite-sized rib-stiffened plates KU Leuven
Rib-stiffened plates are commonly employed in civil and mechanical engineering for reasons of weight and static stiffness. Unfortunately, attaching stiffeners to a plain plate generally increases its radiation efficiency and reduces its airborne sound insulation. This contribution aims at gaining insight into the sound insulation performance of finite-sized rib-stiffened plates through numerical modeling. A detailed finite element model of a ...
On the detection of closing delaminations in laminated composite plates using the structural intensity method Vrije Universiteit Brussel
In recent years, the concept of Nonlinear Structural Intensity (NSI) has been applied to detect fatigue cracks and loose joints in isotropic structures. This paper extends the NSI concept to orthotropic and anisotropic materials and investigates the possibility to use NSI for the localization of a closing delamination in thin laminated plates. When the delamination is excited by a high frequency interrogation signal, the periodic contact ...
Broadband Vibration Attenuation Achieved by 2D Elasto-Acoustic Metamaterial Plates with Rainbow Stepped Resonators KU Leuven
This paper investigates the influences of nonperiodic rainbow resonators on the vibration attenuation of two-dimensional metamaterial plates. Rainbow metamaterial plates composed of thin host plates and nonperiodic stepped resonators are considered and compared with periodic metamaterial plates. The metamaterial plates are modelled with the finite element modelling method and verified by the plane wave expansion method. It was found that the ...