Rune Harald Gaarder
Rune Harald Gaarder
publications and responsibilities
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...
The role of low temperature impact damage and freeze-thaw exposure on post impact compression strength of glass fibre reinforced polymer-matrix composite materials
An experimental study of the role of sub-zero temperature impact damage and subsequent freeze-thaw exposure on post impact compression strength of quasi-isotropic glass fibre reinforced vinyl ester resin composite materials using non-crimp reinforcements typically applied in the marine industry is p...
Shear Testing of Polypropylene Materials Analysed by Digital Image Correlation and Numerical Simulations
Distributions of shear strains and strain states (triaxiality) were analysed for two in-plane shear test fixtures (Iosipescu and V-notched rail), using digital image correlation and numerical simulations. Three different polypropylene-based materials (two talc-filled compounds and one unfilled homop...
Mechanical testing of polypropylene materials in shear analysed by digital image correlation
Testing and analysis of adhesively bonded single lap joints at sub-zero temperatures - a master thesis
Numerical simulation of low-velocity impact loading of polymer materials
Mechanical testing for generating input to numerical simulation of impact response of injection-moulded components
Numerical simulation of the impact response of injection-moulded components has gained importance in several industry sectors, in particular in the automotive industry. Recent studies have demonstrated progress in model-ling special features of ductile polymers’ mechanical response. However, several...
Mechanical Properties of Injection-Moulded Automotive Parts
Mechanical response of injection-moulded parts at high strain rates
This paper deals with numerical simulation of the impact response of injection-moulded parts, and the mechanical testing associated with this. The automotive industry is a driving force in this field, and a standard for tensile testing at high strain rates was recently published (ISO 18872:2007). ...