Browsing Institutt for konstruksjonsteknikk by Title
Now showing items 234-253 of 2606
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Bakgrunn for beregningsregler etter Eurokode for slanke betongsøyler, samvirkesøyler og forankring av lengdearmering.
(Master thesis, 2014)I denne rapporten har det blitt gjennomført litteraturstudium, sammenligning av beregningsmetoder, parameterstudier og gjennomgang av beregningsmetoder. Rapporten er delt inn i de tre hoveddelene; slanke betongsøyler, ... -
Ballistic impact of layered and case-hardened steel plates
(Journal article; Peer reviewed, 2017)We investigated the ballistic resistance of hot-rolled structural steel plates with a nominal yield stress of 355 MPa in this study. Ballistic tests were conducted with 7.62mm armor piercing bullets on monolithic and ... -
Ballistic impact of structural steels at low temperatures
(Peer reviewed; Journal article, 2022)Steels are usually stronger at low temperatures than at high temperatures. But low temperatures are, particularly in combination with high strain rates and high stress triaxiality ratios, known to cause embrittlement. The ... -
Ballistic impact on concrete slabs: An experimental and numerical study
(Peer reviewed; Journal article, 2021)The ballistic perforation resistance of 50 mm thick concrete slabs impacted by 20 mm diameter ogive-nose steel projectiles is investigated experimentally and numerically. Three commercially produced concretes with nominal ... -
Ballistic impact resistance of additive manufactured high-strength maraging steel: An experimental study
(Peer reviewed; Journal article, 2021)Maraging steel is a low carbon steel known for its ultra high-strength after heat treatment. In combination with Additive Manufacturing (AM), the properties of maraging steel indicate potential to enable complex geometries ... -
Ballistic Penetration and Perforation of Steel Plates
(Dr. ingeniøravhandling, 0809-103X; 2000:124, Doctoral thesis, 2001)Situations involving impact, i.e. the collision between two or more solids, were at one time primarily of concern to the military. Nowadays, as safety is highlighted within most branches of industry, the field of impact ... -
Ballistic Perforation of Surface Hardened Mild Steel Plates
(Master thesis, 2014)The main objective with this thesis was to investigate experimentally and numerically the effect surface hardening has on the ballistic properties of monolithic and laminated mild steel plates. 300x300 mm^2 plates of ... -
Ballistic perforation resistance of plain and reinforced concrete slabs - An experimental and numerical study
(Chapter, 2023)As concrete is the most used construction material globally, it is vital to understand how this complex composite material behaves when subjected to extreme and potentially devastating loads like explosions or ballistic ... -
Ballistic perforation resistance of thin concrete slabs impacted by ogive-nose steel projectiles
(Peer reviewed; Journal article, 2021)Concrete is a material frequently used in protective structures exposed to extreme loading. In this study, the ballistic perforation resistance of 50 mm thick plain concrete slabs impacted by 20 mm diameter ogive-nose steel ... -
Ballistic-Limit Velocities for 7.62 mm APM2 Bullets and Aluminum Alloy Armor Plates
(Journal article; Peer reviewed, 2021)In a previous paper, we presented a scaling law for the ballistic-limit velocity for the 7.62 mm APM2 bullet and aluminum armor plates. This scaling law predicts that the ballistic-limit velocity is proportional to the ... -
Basalt Reinforced Concrete in Load Carrying Structures: Structural Behaviour in the Serviceability and Ultimate Limit State
(Master thesis, 2012)Reforcetech AS is about to develop, and has just started, the manufacturing of basalt fibres for reinforcing concrete structures. Contrary to steel bars, the basalt reinforcement is non-corrosive, non-conductive, and ... -
A bead sequence-driven deposition pattern evaluation criterion for lowering residual stresses in additive manufacturing
(Peer reviewed; Journal article, 2021)Deposition patterns can significantly influence the distribution and magnitude of residual stress in additively manufactured parts. Time-consuming thermal-mechanical simulations and costly experimental studies are often ... -
Beam - Column Connections Subjected to Static and Dynamic Loading
(Master thesis, 2014)Bolted beam-column connections are commonly used in office buildings and off-shore platforms in Norway. The use of pre-fabricated components in frame structures is popular due to the cost effective and quick erection of ... -
Behavior and modeling of injection molded PP
(Master thesis, 2014)The structural impact laboratory (SIMLab) at NTNU have developed a constitutive material modelto represent the behavior of brittle and ductile polymeric materials. The material model can be implementedinto finite element ... -
Behavior of Post-Tensioned concrete box girder with multiple damaged tendons A Case Study of the Sykkylvsbrua
(Master thesis, 2022)Hovedformålet med denne masteroppgaven var å undersøke skadene i enkelt støttede boksbjelkerbroer. Dette ble utført ved å utføre ikke-lineær analyse i Finite elementanalyseprogrammet DIANA FEA 10.5 Oppgaven er delt inn i ... -
Behavior of PVC and HDPE under highly triaxial stress states: An experimental and numerical study
(Journal article; Peer reviewed, 2014)This paper addresses the deformation of axisymmetric tensile bars, made of mineral-filled PVC and HDPE, with and without pre-machined notch. The purpose of the study is both to investigate the mechanical behavior under ... -
Behavior of slopes under multiple adjacent footings and buildings
(Journal article; Peer reviewed, 2018)This article examines the response of soil slopes under adjacent embedded strip foundations, subjected to increasing vertical load due to the gravity load of buildings. The study also considers slopes under closely spaced ... -
Behaviour and Capacity of Lightweight Aggregate Concrete Beams with and without Shear Reinforcement
(Journal article; Peer reviewed, 2017)The main disadvantages of lightweight aggregate compared with normal weight concrete are its brittleness at the material level in compression and uncontrolled crack propagation. This experimental investigation consists of ... -
Behaviour and failure of aluminium extrusions under bending and stretching
(Master thesis, 2018)Current and future strategic challenges in the construction industry require safe and lightweight structures to achieve a good strength to weight ratio. Authentic material combinations together with numerical simulations ... -
Behaviour and Modelling of AA6xxx Aluminium Alloys Under a Wide Range of Temperatures and Strain Rates
(Doctoral thesis at NTNU;2015:63, Doctoral thesis, 2015)This thesis addresses the behaviour and the modelling of the thermo-mechanical response of Al-Mg-Si (aluminium) alloys in tension subject to a wide range of temperatures and strain rates. The work is organised into a ...