Browsing Institutt for konstruksjonsteknikk by Document Types "Journal article"
Now showing items 1-20 of 947
-
25 years of field exposure of pre-cracked concrete beams; combined impact of spacers and cracks on reinforcement corrosion
(Peer reviewed; Journal article, 2021)The state of corrosion of three pre-cracked concrete beams was investigated after 25 years of marine exposure (atmospheric, tidal and submerged). The influence of inadequate plastic spacers was found to overrule the possible ... -
3D Integration technology: Status and application development
(Journal article; Peer reviewed, 2010)As predicted by the ITRS roadmap, semiconductor industry development dominated by shrinking transistor gate dimensions alone will not be able to overcome the performance and cost problems of future IC fabrication. Today ... -
3D patient-specific numerical modeling of the soft palate considering adhesion from the tongue
(Journal article; Peer reviewed, 2018)Collapse of the soft palate in the upper airway contributes to obstructive sleeping apnea (OSA). In this study, we investigate the influence of the adhesion from the tongue on the soft palate global response. This is ... -
5 years of in situ reinforcement corrosion monitoring in the splash and submerged zone of a cracked concrete element
(Peer reviewed; Journal article, 2021)Results of more than 5 years of in situ reinforcement corrosion monitoring are presented including continuous measurements of concrete resistivity, temperature, and open circuit corrosion potential measurements. Depth ... -
A combined isotropic, kinematic and distortional hardening model for aluminum and steels under complex strain-path changes
(Journal article; Peer reviewed, 2018)In this work, a new model is proposed for predicting stress transients caused by strain path changes. The model is formulated in stress space, where a second order tensor, i.e., the microstructure stress deviator, is used ... -
A Combined Precipitation, Yield Stress, and Work Hardening Model for Al-Mg-Si Alloys Incorporating the Effects of Strain Rate and Temperature
(Journal article; Peer reviewed, 2018)In this study, a combined precipitation, yield strength, and work hardening model for Al-Mg-Si alloys known as NaMo has been further developed to include the effects of strain rate and temperature on the resulting stress–strain ... -
A density-dependent failure criterion for concrete
(Journal article, 2016)This work focuses on the large effect of small secondary stresses on the compressive strength of concrete. The strength and especially the ductility of structural concrete members depend on local triaxial stress conditions ... -
A family of hyperelastic models for human brain tissue
(Journal article; Peer reviewed, 2017)Experiments on brain samples under multiaxial loading have shown that human brain tissue is both extremely soft when compared to other biological tissues and characterized by a peculiar elastic response under combined shear ... -
A gradient-based multiaxial criterion for fatigue crack initiation prediction in components with surface roughness
(Journal article, 2018)The current study presents methods to predict the governing crack initiation site and fatigue crack initiation life of components with surface roughness. The surface topography is measured with white light interferometry ... -
A Lode-dependent Gurson model motivated by unit cell analyses
(Journal article; Peer reviewed, 2017)In this study, the effects of including a dependency on the third deviatoric stress invariant in the void evolution equation of the Gurson model are examined using unit cell calculations and imperfection band analyses. ... -
A method for determining material's equivalent stress-strain curve with any axisymmetric notched tensile specimens without Bridgman correction
(Journal article, 2017)Large deformation analyses of problems such as plastic forming, ductile fracture with finite element method need a full range of material's equivalent stress-strain curve or flow stress-strain curve. The equivalent ... -
A microstructure-based yield stress and work-hardening model for textured 6xxx aluminium alloys
(Journal article; Peer reviewed, 2016)The plastic properties of an aluminium alloy are defined by its microstructure. The most important factors are the presence of alloying elements in the form of solid solution and precipitates of various sizes, and the ... -
A nano-scale material model applied in finite element analysis of aluminium plates under impact loading
(Journal article, 2013)Finite element simulations of AA6070 aluminium plates struck by ogival-nose projectiles are performed. The aluminium plates are 20 mm thick and heat treated to temper O, T4, T6 and T7. A nano-scale material model, consisting ... -
A new method to estimate the residual stresses in additive manufacturing characterized by point heat source
(Journal article; Peer reviewed, 2019)Residual stress in additive manufacturing (AM) is one of the key challenges in terms of structural integrity and finish quality of printed components. Estimating the residual stress distribution on additively manufactured ... -
A numerical investigation of the cracking behaviour of reinforced-concrete tie elements
(Journal article; Peer reviewed, 2018)The cracking behaviours of reinforced-concrete (RC) ties are investigated by conducting virtual experiments using non-linear finite-element analysis. The assumptions in the model are verified by benchmarking the classical ... -
A numerical method for junctions in networks of shallow-water channels
(Journal article, 2018)There is growing interest in developing mathematical models and appropriate numerical methods for problems involving networks formed by, essentially, one-dimensional (1D) domains joined by junctions. Examples include ... -
A numerical study of beam-to-column joints subjected to impact
(Journal article; Peer reviewed, 2016)Limited documentation is concerned with the behaviour of steel joints subjected to severe impulsive loading originating from incidents such as explosions or impact. In this paper, finite element simulations are used to ... -
A numerical study on the deformation and fracture modes of steel projectiles during Taylor bar impact tests
(Journal article; Peer reviewed, 2014)A heterogeneous material model based on macro-mechanical observations is proposed for simulation of fracture in steel projectiles during impact. A previous experimental study on the deformation and fracture of steel ... -
A physically-based constitutive model applied to AA6082 aluminium alloy at large strains, high strain rates and elevated temperatures
(Journal article; Peer reviewed, 2016)This paper presents a physically-based constitutive model applied to an AA6082 aluminium alloy subjected to large strains, high strain rates and elevated temperatures. The model accounts for thermo-elasticity, thermo-vis ... -
A probabilistic-based approach for predicting mould growth in timber building envelopes: Comparison of three mould models
(Journal article; Peer reviewed, 2017)This paper applies a probabilistic-based approach as a methodology to analyze and compare the mould growth computations’ results from three different mould models. This approach, instead of the conventional deterministic ...