Blar i Institutt for konstruksjonsteknikk på tittel
Viser treff 2106-2125 av 2469
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Simulation of ductile crack propagation in dual-phase steel
(Journal article; Peer reviewed, 2013)The modified Mohr–Coulomb and the extended Cockcroft–Latham fracture criteria are used in explicit finite-element (FE) simulations of ductile crack propagation in a dual-phase steel sheet. The sheet is discretized using ... -
Simulation of Ductile Crack Propagation in Steel Pipes
(Master thesis, 2018)For the transport of gases and liquids, such as CO2, in steel pipelines to be safe, rupture in the pipe should be avoided. A crack in a pressurized pipe may start to propagate rapidly along the pipeline and run for ... -
Simulation of ductile fracture in aluminium alloys with random or strong texture using heuristic extensions of the Gurson model
(Peer reviewed; Journal article, 2022)Ductile fracture of two high-strength aluminium alloys in temper T6 is investigated using heuristic extensions of the Gurson model with non-quadratic yield criteria. Simulations of tensile tests on smooth and notched ... -
Simulation of ductile-to-brittle transition combining complete Gurson model and CZM with application to hydrogen embrittlement
(Journal article; Peer reviewed, 2022)A general simulation framework for modelling ductile-to-brittle transition in metals is proposed. The method combines the complete Gurson model and cohesive zone model, which brings ductile and brittle fracture mechanisms ... -
Simulation of large-strain behaviour of aluminium alloy under tensile loading using anisotropic plasticity models
(Journal article; Peer reviewed, 2015)Cylindrical smooth and notched AA6060 samples were tested in tension. The material was either cast and homogenised or extruded with strong cube texture. The textured specimens demonstrated unusual shapes of the fracture ... -
Simulation of the upper airways in patients with obstructive sleep apnea and nasal obstruction: A novel finite element method
(Journal article; Peer reviewed, 2018)Objective To evaluate the biomechanical properties of the soft palate and velopharynx in patients with obstructive sleep apnea (OSA) and nasal obstruction. Study design Prospective experimental study. Materials and ... -
Simulations of 2D dynamic brittle fracture by the element-free Galerkin method and linear fracture mechanics
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:125, Doctoral thesis, 2006) -
Simulering av brudd og sprekkvekst med X-FEM
(Master thesis, 2012)X-FEM, den utvidede elementmetoden, er en relativt ny metode for simulering av sprekkvekst. X-FEM bygger på rammeverket til vanlig elementmetode, FEM. I X-FEM berikes nodene i et element for å inkludere diskontinuiteter ... -
Simultaneous optimization of shape and topology of free-form shells based on uniform parameterization model
(Journal article; Peer reviewed, 2019)In current optimization methods for free-form shells, the shape and topology are usually optimized separately. These methods are based on the assumption that the shape and topology of a shell influence each other only ... -
Simultaneously toughening and stiffening elastomers with octuple hydrogen bonding
(Peer reviewed; Journal article, 2021)Current synthetic elastomers suffer from the well-known trade-off between toughness and stiffness. By a combination of multi-scale experiments and atomistic simulations, we demonstrate a transparent unfilled elastomer with ... -
Sintering properties of sol–gel derived lithium disilicate glass ceramics
(Journal article; Peer reviewed, 2018)Lithium disilicate (Li2Si2O5) glass-ceramics were fabricated through two sol–gel methods: the nitrate route and the alkoxide route. Thermal analysis revealed different crystallization processing of two gel-derived powders. ... -
Site-specific data-driven probabilistic wind field modeling for the wind-induced response prediction of cable-supported bridges
(Journal article; Peer reviewed, 2018)In this study, full-scale wind velocity measurements are conducted at eight locations on the Hardanger Bridge girder to investigate the possibility of a probabilistic representation of the turbulence field along the bridge ... -
Size and shape effects on the thermodynamic properties of nanoscale volumes of water
(Journal article; Peer reviewed, 2017)Small systems are known to deviate from the classical thermodynamic description, among other things due to their large surface area to volume ratio compared to corresponding big systems. As a consequence, extensive ... -
Size dependent behaviour of micron-sized composite polymer particles
(Journal article; Peer reviewed, 2010)The mechanical properties of micron-sized composite polymer particles have been investigated by using a nanoindentation-based flat punch technique. The contact loaddisplacement relationship of particles has been established ... -
Size effect on mechanical properties of micron-sized PS-DVB polymer particles
(Journal article; Peer reviewed, 2008)A nanoindentation based flat punch method has been developed to determine the stress-strain behaviour of single micron-sized Ugelstad polystyrene-co-divinylbenzene (PS-DVB) particles in compression. Five groups of particles ... -
Size-dependent mechanical behavior of nanoscale polymer particles through coarse-grained molecular dynamics simulation
(Journal article; Peer reviewed, 2013)Anisotropic conductive adhesives (ACAs) are promising materials used for producing ultra-thin liquid-crystal displays. Because the mechanical response of polymer particles can have a significant impact in the performance ... -
Size-dependent Phase Transformation and Fracture of ZnO Nanowires
(Journal article; Peer reviewed, 2017)The structural and mechanical properties of ZnO nanowires (NWs) have been systematically investigated by using molecular dynamic simulations based on the empirical Buckingham potential. Under tensile loading in <0001> ... -
Skjærforsterkning av betongkonstruksjoner med fiberarmerte polymerer
(Master thesis, 2015)Denne rapporten handler om hvordan fiberarmerte kompositter (FRP) egner seg til bruk for forsterkning av betongkonstruksjoner påkjent av skjærkrefter. Da dette temaet er relativt nytt både for meg og forskningsmiljøet i ... -
Skjærkapasitet i betongkonstruksjoner uten skjærarmering
(Master thesis, 2018)I forbindelse med fornying av Eurokode 2 (NS-EN1992-1-1:2004) er det foreslått en ny beregningsmetode for bestemmelse av skjærkapasitet i konstruksjonsdeler som beregningsmessig ikke har behov for skjærarmering. Formålet ... -
Skjærkapasitet i hulldekker med utstøpte kanaler
(Master thesis, 2023)Masteroppgaven er et resultat av 43 fullskala prøver av hulldekkeelementer, med det formål å kontrollere om dagens beregningsmetoder i NS-EN 1168 og Betongelementboken for skjærkapasitet i hulldekker med utstøpte kanaler ...