Blar i Institutt for konstruksjonsteknikk på tittel
Viser treff 1688-1707 av 2483
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Non-proportional loading in sequentially linear analysis for 3D stress states
(Journal article; Peer reviewed, 2019)Sequentially linear analysis (SLA), a non‐incremental‐iterative approach towards finite element simulation of quasi‐brittle materials, is based on sequentially identifying a critical integration point in the model, to ... -
Non-proportional loading in sequentially linear solution procedures for quasi-brittle fracture: A comparison and perspective on the mechanism of stress redistribution
(Peer reviewed; Journal article, 2020)Sequentially linear solution procedures provide a robust alternative to their traditional incremental-iterative counterparts for finite element simulation of quasi-brittle materials. Sequentially linear analysis (SLA), one ... -
Non-Stationary Buffeting Response of Slender Suspension Bridges
(Master thesis, 2018)This thesis presents a generalized framework for predicting dynamic structural response of slender, horizontal and line like structures. This general framework is subsequently adopted and streamlined to the Hardanger Bridge ... -
Nonlinear Analyses of RC Frames under Vertical and Horizontal Loading
(Master thesis, 2015)The influence of the load history on the structural behaviour and capacity of some statically indeterminate reinforced concrete frames was investigated, through the use of nonlinear finite element analyses (NLFEA). The ... -
Nonlinear Analysis of 3D Beams: A Comparative Study of Geometrically Exact and the Beam Elements in ABAQUS
(Master thesis, 2017)For several decades, the finite element method (FEM) has been widely used in nonlinear analysis of three-dimensional (3D) curved beam-like structural systems, subjected to large displacements and strains. Among the numerous ... -
Nonlinear Analysis of Fibre Reinforced Concrete Beams - Influence of fibre orientation and density
(Master thesis, 2014)This master thesis examines nonlinear analysis of fibre reinforced concrete in DIANA, what influence changes in fibre orientation and density have on the load capacity and the load-bearing ability when the displacement ... -
Nonlinear Analysis of Fibre Reinforced Concrete Beams: Influence of fibre orientation and density
(Master thesis, 2014)This master thesis examines nonlinear analysis of fibre reinforced concrete in DIANA,what influence changes in fibre orientation and density have on the loadcapacity and the load-bearing ability when the displacement grows. ... -
Nonlinear analysis of post tensioned RC beam in DIANA using python
(Master thesis, 2022)Elementmetoden kan brukes til å undersøke og estimere reaksjonen til en etterspentbetongbjelke i ulike belastningssituasjoner. Takket være fremskritt innen teknologi, tilbyr markedet i dag flere dataprogrammer som er i ... -
Nonlinear Analysis of Reinforced Concrete Beams without Shear Reinforcement
(Master thesis, 2022)I denne oppgaven ble ikkelineær elementmetode brukt som et verktøy til å reflektere oppførselen til armerte betongbjelker med ulik geometri numerisk. Elementmetodeprogrammet som ble brukt var DIANA med versjon 10.4, da ... -
Nonlinear and Time Dependent Analysis of a Concrete Bridge Suffering from Alkali-Silica Reaction: A Case Study of the Elgeseter Bridge in Trondheim.
(Master thesis, 2014)This thesis reports a case study of the Elgeseter Bridge in Trondheim, which is known to suffer from Alkali-Silica reaction. The main aim is to provide more accurate predictions of the response and capacity of the bridge ... -
Nonlinear Dynamic Response of Concrete Structure with Soil-Structure Interaction
(Master thesis, 2015)A common assumption for a structure that is subjected to an earthquake is that the structure is considered fixed at the base. In this thesis, analyses where the soil is deformed and the foundation may be moved and rotate ... -
Nonlinear Earthquake Analysis of Bridges in Time Domain
(Master thesis, 2011)Asynchronous seismic excitation has in previous studies been shown to significantly alter the response of long-span bridges. In order to further investigate this phenomenon, this master`s thesis studies the seismic behavior ... -
Nonlinear earthquake response of integral abutment bridges on vertical and batter piles: A practical approach
(Journal article; Peer reviewed, 2023)This paper presents a new finite element framework for seismic analysis of IABs (and other similar structures) on vertical and batter piles that takes into account nonlinear soil-structure interaction. A previously developed ... -
Nonlinear Isogeometric Analysis vs NFEA of Tubular Joints
(Master thesis, 2013)In 2005, Hughes et al. introduced the isogeometric analysis. One purpose was to eliminate the conversion between geometry model and analysis model in finite element analyses. NURBS (Non-Uniform Rational B-Splines) were ... -
Nonlinear modelling of aerodynamic self-excited forces: An experimental study
(Peer reviewed; Journal article, 2021)The bridge aerodynamics research community is currently discussing several nonlinear wind load models for bridge decks, but no definite conclusion on which model is superior to the others is currently available. In this ... -
Nonlinear modelling of aerodynamic self-excited forces: An experimental study
(Peer reviewed; Journal article, 2021)The bridge aerodynamics research community is currently discussing several nonlinear wind load models for bridge decks, but no definite conclusion on which model is superior to the others is currently available. In this ... -
Nonlinear soil-pile interaction for offshore wind turbines
(Journal article; Peer reviewed, 2018)The current work presents a parametric study, which involves different generalized nonlinear mechanical formulations with different damping characteristics to account for the interaction between a monopile‐supported offshore ... -
Nonlinear static and dynamic isogeometric analysis of slender spatial cable and beam type structures
(Doctoral theses at NTNU;2019:181, Doctoral thesis, 2019)In this thesis, a bending-stabilized cable element with three degrees of freedom per control point, and a four degrees of freedom Euler-Bernoulli beam element, has been derived in a dynamic isogeometric setting. The elements ... -
Nonparametric modeling of self-excited forces based on relations between flutter derivatives
(Peer reviewed; Journal article, 2020)Unsteady self-excited forces are commonly represented by parametric models such as rational functions. However, this requires complex multiparametric nonlinear fitting, which can be a challenging task that requires know-how. ... -
Nordic Concrete Research workshop: “Accelerated freeze-thaw testing of concrete”, Lyngby, 20th April 2022
(Journal article; Peer reviewed, 2022)A one-day Nordic Concrete Research workshop on “Accelerated freeze-thaw testing of concrete” attracted approx. 30 participants. The workshop included presentations on various aspects, such as observed frost damage in the ...