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Now showing items 1-10 of 11
Design of water shock tube for testing shell materials
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-04-15)
This paper presents design considerations for a shock tube experimental rig used to investigate
the dynamic failure mechanisms of shell geometries subjected to water shock impact loading. In such setup, it is desirable that the drive pressure used within the tube can provide a wide range of impulsive loads on the test structures and some flexibility can be achieved on the applied pulse durations. ...
Quantitative analysis of accuracy of voidage computations in CFD-DEM Simulations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
Semi-Implicit Method for Pressure-Linked Equations (SIMPLE) – solution in MATLAB®
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018)
This work presents a method for the solution of fundamental governing equations of computational fluid dynamics (CFD) using the Semi-Implicit Method for Pressure-Linked Equations (SIMPLE) in MATLAB®. The fundamental governing equations of fluid mechanics are based on three laws of conservation, referred to as the law of conservation of mass, the law of conservation of momentum and the law of ...
Numerical simulation of the dynamic response in pulse-loaded fibre–metal-laminated plates
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-07-27)
This article presents a three-dimensional constitutive model to replicate the dynamic response of blast-loaded fibre–metal laminates made of 2024-0 aluminium alloy and woven composite (glass fibre–reinforced polypropylene). Simulation of the dynamic response is challenging when extreme localised loads are of concern and requires reliable material constitutive models as well as accurate modelling ...
Fluid solid interaction simulation of CFRP shell structure
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
This work attempts to model the dynamic behavior of Carbon Fiber Reinforced Polymer (CFRP) shell structure subjected to water shock wave to improve the results presented in the study by Khawaja et al., 2014. In the previous study, the real physical problem was simplified by decoupling the fluid and the structural phenomena, applying the recorded experimental fluid pressure load to the CFRP shell ...
Study of the required thermal insulation (IREQ) of clothing using infrared imaging
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
The sense of cold develops due to the increase in heat loss from a human body. Excessive cold can be a health hazard, since excessive heat loss from the body may result in hypothermia/frostbite. Decreased body temperature due to heat loss also affects the physical, manual and perceptive performance of individuals. Therefore, protective measures are taken through clothing that controls and regulates ...
Lagrangian and ALE Formulations For Soil Structure Coupling with Explosive Detonation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
Simulation of Soil-Structure Interaction becomes more and more the focus
of computational engineering in civil and mechanical engineering, where
FEM (Finite element Methods) for soil and structural mechanics and Finite
Volume for CFD (Computational Fluid Dynamics) are dominant. New
advanced formulations have been developed for FSI (Fluid Structure
Interaction) applications using ALE (Arbitrary ...
Multiphysics Eulerian-Lagrangian Electrostatic Particle Spray- And Deposition Model for OpenFOAM® and KaleidoSim® Cloud-Platform
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020)
A finite volume based Eulerian-Lagrangian model has been created within OpenFOAM® in order to predict the behavior of particle clouds as well as particle deposition thicknesses on substrates under the influence of electro-static effects. The model resolves close to electrode effects as well as phenomena within the entire deposition chamber. It considers fluid dynamic effects, particle inertia, ...
Multiphysics Analysis of CFRP Charpy Tests by varying Temperatures
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020)
Carbon Fiber Reinforced Polymer (CFRP) composites have emerged as a major class of structural materials that have a significant potential use as a substitute for metals in aerospace, marine, automotive, and architecture due to their higher-strength-to-weight-ratio. CFRP is well suited for various applications, but their mechanical properties such as ‘low-velocity impact resistance’ are not well ...
Multiphysics Study of Infrared Thermography (IRT) Applications
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-19)
The paper reviews thermographic and vibrothermography applications such as cold climate operations, determine the temperature profile of steel samples under tensile testing and perform composites Non-Destructive Testing (NDT). This review paper discusses studies, where IR thermography has been used effectively in research and development projects at the UiT The Arctic University of Norway and AGH ...