Browsing by Author "Hansen, Finn Knut"
Now showing items 1-9 of 9
-
A computational study of density of some high energy molecules
Moxnes, John Fredrik; Hansen, Finn Knut; Jensen, Tomas Lunde; Sele, Marta Lill; Unneberg, Erik (2016)The detonation pressure depends quadratically on the loading density of the explosives. A precise estimate of the density is thus crucial to decide if a novel energetic material is worth pursuing. In this work we investigate ... -
Investigation of Theoretical Models for the Elastic Stiffness of Nanoparticle-Modified Polymer Composites
Thorvaldsen, Tom; Johnsen, Bernt Brønmo; Olsen, Torbjørn; Hansen, Finn Knut (2015)Mathematical models are investigated and suggested for the calculation of the elastic stiffness of polymer nanocomposites. Particular emphasis is placed on the effect on the elastic stiffness from agglomerates and the ... -
Isocyanate-Free and Dual Curing of Smokeless Composite Rocket Propellants
Landsem, Eva; Jensen, Tomas Lunde; Kristensen, Tor Erik Holt; Hansen, Finn Knut; Benneche, Tore; Unneberg, Erik (2013)Traditional composite rocket propellants are cured by treatment of hydroxyl-terminated prepolymers with polyfunctional aliphatic isocyanates. For development of smokeless composite propellants containing nitramines and/or ... -
Mechanical Properties of Smokeless Composite Rocket Propellants Based on Prilled Ammonium Dinitramide
Landsem, Eva; Jensen, Tomas Lunde; Hansen, Finn Knut; Kristensen, Tor Erik Holt; Unneberg, Erik (2012)Ammonium dinitramide (ADN) is a high performance solid oxidizer of interest for use in high impulse and smokeless composite rocket propellant formulations. While rocket propellants based on ADN may be both efficient, clean ... -
Neutral Polymeric Bonding Agents (NPBA) and Their Use in Smokeless Composite Rocket Propellants Based on HMXGAP- BuNENA
Landsem, Eva; Jensen, Tomas Lunde; Hansen, Finn Knut; Unneberg, Erik; Kristensen, Tor Erik Holt (2012)Very few efficient bonding agents for use in solid rocket propellants with nitramine filler materials and energetic binder systems are currently available. In this work, we report the synthesis, detailed characterization, ... -
The Optimum Dispersion of Carbon Nanotubes for Epoxy Nanocomposites: Evolution of the Particle Size Distribution by Ultrasonic Treatment
Frømyr, Tomas Roll; Hansen, Finn Knut; Olsen, Torbjørn (2012)The ultrasonic dispersion of multiwalled carbon nanotube (MWCNT) suspensions was assessed by studying the differential sedimentation of the particles in an acid anhydride often employed as a curing agent for epoxy resins. ... -
Overflatemodifisering av silikongummi for å oppnå bedre adhesjon mot polare forbindelser
Aardal, Joakim; Grorud, Mette; Hansen, Finn Knut; Olsen, Torbjørn; Grythe, Kai Frode (2009)I dette arbeidet er ulike typer silikongummi overflatemodifisert på fem forskjellige måter; varmebehandling, plasmabehandling, syrebehandling, laserbehandling, og behandling med oksidasjonsmiddelet hydrogenperoksid. ... -
Simuleringer av polymerer og kolloider med molekyldynamikk - rapport fra forskningstermin 2013/2014
Hansen, Finn Knut (2015-05-13)Molekyldynamikk (MD) er datasimulering av fysiske bevegelser av atomer og molekyler, og benytter Newtons bevegelseslover i et såkalt kraftfelt. Denne rapporten beskriver ett års erfaring med bruk av programsystemet ... -
Surface treatment of alumina ceramic for improved adhesion to a glass fibre-reinforced polyester composite
Lausund, Kristian Blindheim; Johnsen, Bernt Brønmo; Rahbek, Dennis Bo; Hansen, Finn Knut (2015)The adhesion between an alumina ceramic and a glass fibre-reinforced polyester matrix composite has been investigated. The effect of various alumina surface treatments, including degreasing, etching, plasma, grit-blasting ...