Jens Kjær Jørgensen
Jens Kjær Jørgensen
Publikasjoner og ansvarsområder
The Effect of Fiber Concentration on Fiber Orientation in Injection Molded Film Gated Rectangular Plates
Fiber orientation in film gated injection-molded rectangular plates was characterized using micro computed tomography. Polyamide 12 materials with 15, 30, and 50 wt% glass fibers were used in this study. For all three materials, the typical core-shell layer structure of fiber orientation was observe...
A Numerical/Experimental Study on the Impact and CAI Behaviour of Glass Reinforced Compsite Plates
This paper focuses on the development of an advance numerical model specifically for simulating low velocity impact events and related stiffness reduction on composite structures. The model is suitable for low cost thick composite structures like wind turbine blade and maritime vessels. The model co...
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Numerical/experimental study of the impact and compression after impact on GFRP composite for wind/marine applications
Damage development due to impact needs to be understood to evaluate the consequences of impact on composite structures. This study concentrates on modelling low velocity impact and consequent compression after impact (CAI) test on thick industrial composites made from glass fiber epoxy produced by v...
Numerical/Experimental Study Of The Impact and Compression After Impact On GFRP Composite For Wind/Marine Applications
Fatigue performance of glass fibre – vinyl ester composite at ambient and subzero temperature.
The effect of hydrocarbon ageing on the mechanical properties, apparent crosslink density and CO2 diffusion of a hydrogenated nitrile butadiene rubber (HNBR)
The effect of ageing in a sweet oil environment on the tensile properties, apparent crosslink density, CO2 diffusion and Shore hardness of a typical carbon black reinforced hydrogenated nitrile butadiene rubber (HNBR) is presented. Different ageing conditions yielded materials with different propert...
Aging of polyamide 11. Part 3: Multiscale model predicting the mechanical properties after hydrolytic degradation
A holistic general multiscale model of polymer degradation has been applied to predict the mechanical properties of polyamide 11 after the hydrolytic ageing. Results for elastic modulus, tensile strength, and embrittlement threshold have been compared with experimental aging in deoxygenated water at...
Aging of polyamide 11. Part 2: General multiscale model of the hydrolytic degradation applied to predict the morphology evolution
Accelerated aging tests are the conventional way to evaluate long-term degradation of polymers, in particular for offshore flexible risers. In this article, a multiscale model has been developed combining diffusion, chemical kinetic reactions, structure–property relationships, and composite models t...