Browsing SINTEF Open by Author "Grytten, Frode"
Now showing items 1-12 of 12
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A thermo-elasto-viscoplastic constitutive model for polymers
Johnsen, Joakim; Clausen, Arild Holm; Grytten, Frode; Benallal, Ahmed; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2018) -
Determination of Anisotropic Mechanical Properties for Materials Processed by Laser Powder Bed Fusion
Hovig, Even Wilberg; S. Azar, Amin; Grytten, Frode; Sørby, Knut; Andreassen, Erik (Peer reviewed; Journal article, 2019)Improving the success rate in additive manufacturing and designing highly optimized structures require proper understanding of material behaviour. This study proposes a novel experimental method by which anisotropic ... -
Experimental set-up for determination of the large-strain tensile behaviour of polymers at low temperatures
Johnsen, Joakim; Grytten, Frode; Hopperstad, Odd Sture; Clausen, Arild Holm (Journal article; Peer reviewed, 2016)In this study, we present a method to determine the large-strain tensile behaviour of polymers at low temperatures using a purpose-built temperature chamber made of polycarbonate (PC). This chamber allows for several cameras ... -
Hydroelastic response of concrete shells during impact on calm water
Abrahamsen, Bjørn Christian; Grytten, Frode; Hellan, Øyvind; Søreide, Tore H.; Faltinsen, Odd Magnus (Peer reviewed; Journal article, 2023)Many ocean structures located offshore are supported by large vertical concrete columns. High and steep storm waves – in the process of breaking – may induce large local slamming loads on these columns. The present work ... -
Hydroelastic response of Froude scaled stiffened steel panels exposed to design-critical wave slamming
Abrahamsen, Bjørn Christian; Grytten, Frode; Andreassen, Erik; Hellan, Øyvind (Peer reviewed; Journal article, 2023)Stiffened steel panels of offshore ocean structures may experience violent wave impacts which needs to be accounted for in design. The slamming pressures are often measured in scaled wave tank tests and imposed on finite ... -
Influence of strain rate and temperature on the mechanical behaviour of rubber-modified polypropylene and cross-linked polyethylene
Johnsen, Joakim; Grytten, Frode; Hopperstad, Odd Sture; Clausen, Arild Holm (Journal article; Peer reviewed, 2017) -
Material characterisation and failure envelope evaluation of filament wound GFRP and CFRP composite tubes
Perillo, Giovanni; Vacher, Robin; Grytten, Frode; Sørbø, Steinar; Delhaye, Virgile Roger (Peer reviewed; Journal article, 2014)The full procedure for material characterisation of filament wound composite pipe is reported. Two different typologies of composite were used in order to evaluate the performance of the developed test methodology. Test ... -
A micromechanical model of fiber bridging including effects of large deflections of the bridging fibers
Grytten, Frode; Sørensen, Bent Fruergaard; Goutianos, Stergios; Joki, Reidar Kvale; Jørgensen, Jens Kjær (Peer reviewed; Journal article, 2021)A micromechanical model of cross-over fiber bridging is developed for the prediction of macroscopic mixed-mode bridging laws (traction-separation laws). The model is based on non-linear beam theory and takes into account ... -
A micromechanical model of fiber bridging including effects of large deflections of the bridging fibers
Grytten, Frode; Sørensen, Bent Fruergaard; Goutianos, Stergios; Joki, Reidar Kvale; Jørgensen, Jens Kjær (Peer reviewed; Journal article, 2021)A micromechanical model of cross-over fiber bridging is developed for the prediction of macroscopic mixed-mode bridging laws (traction-separation laws). The model is based on non-linear beam theory and takes into account ... -
A mixed mode cohesive model for FRP laminates incorporating large scale bridging behaviour
Joki, Reidar Kvale; Grytten, Frode; Hayman, Brian; Sørensen, Bent Fruergaard (Peer reviewed; Journal article, 2020)A user defined cohesive material model is implemented in the LS-DYNA finite element code. The model is based on interface properties characterised from DCB specimens loaded with unequal bending moments. Different mode ... -
Numerical/experimental impact events on filament wound composite pressure vessel
Perillo, Giovanni; Grytten, Frode; Sørbø, Steinar; Delhaye, Virgile Roger (Peer reviewed; Journal article, 2015)Impacts on pressure vessels, produced by winding glass fibre with vinyl ester resin over a polyethylene liner, were numerically and experimentally investigated in the current work. Pressure vessels were experimentally ... -
The low temperature crystallization of hydrogenated nitrile butadiene rubber (HNBR)
Alcock, Benjamin; Olafsen, Kjell; Huse, Jon; Grytten, Frode (Journal article; Peer reviewed, 2018)HNBR was analyzed following low temperature storage (between 0 °C and −50 °C) in order to measure the effects of cold crystallization during exposure close to, and below, the glass transition temperature (Tg). Differential ...