Browsing ODA Open Digital Archive by Author "Reyes, Aase"
Now showing items 1-19 of 19
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Assessment of a digital twin as a tool in structural health monitoring of aeging bridges
Sandaker, Sissel (MABY;2022, Master thesis, 2022)The need to travel from one place to another is a fundamental pillar of our society. Since the beginning of time, humans have altered their surroundings to get from A to B in a more efficient way. Often, this pursuit of ... -
A continuum approach to multiaxial high-cycle fatigue modeling for ductile metallic materials
Tveit, Sigbjørn; Reyes, Aase; Erduran, Emrah (Results in Engineering (RINENG);, Peer reviewed; Journal article, 2024)In this work we propose a generalization of the endurance function employed in the continuum approach to high-cycle fatigue modeling by Ottosen et al. (2008). The von Mises-type backstress-modified effective stress term ... -
Development of FEM methodology for analyzing wind-induced loads on transmission lines for sub-arctic terrain and extreme atmospheric conditions
Poradowski, Wojciech (MABY;2022, Master thesis, 2022)This thesis presents structural analysis of power lines with the use of the Finite Element Method (FEM). The methodology of analyzing the atmospheric loading on conductors and supporting structures is being developed. The ... -
Double-layer configurations of high-strength steel plates subjected to ballistic impact: A numerical study
Smedsrud, Erik; Karlsen, Jonas (Master thesis, 2021)This thesis investigates projectile impact on double-layered high-strength steel (HSS) plates commonly used for ballistic protection of buildings. The gap between adjoining protective plates in such configurations may be ... -
Experimental Tests and Numerical Simulations on the Ballistic Impact Response of a Highly Inhomogeneous Aluminium Foam
Brekken, Kristoffer Aune; Vestrum, Ole; Dey, Sumita; Reyes, Aase; Børvik, Tore (Materials;Volume 15 / Issue 13, Peer reviewed; Journal article, 2022-07-01)A sandwich structure is a composite material consisting of thin skins encapsulating a cellular core. Such structures have proven to be excellent energy absorbents and are frequently found in various types of protection. ... -
Formability analyses of AA6016-T4 aluminum alloy sheets subjected to roping
Tveit, Sigbjørn; Reyes, Aase (Chapter; Peer reviewed; Conference object; Journal article, 2024)Due to its good formability characteristics, AA6xxx aluminum alloys have become popular as a light-weight alternative to steel for car bodywork components produced by stamping. In the design of forming operations, numerical ... -
Formability analysis of AA6016-T4 aluminium alloy sheets subjected to roping
Tveit, Sigbjørn (MABY;2020, Master thesis, 2020)Due to its good formability characteristics, AA6xxx aluminium alloys have become popular as a light-weight alternative to steel for components produced by stamping operations for use in the bodywork of cars. In this thesis, ... -
Formability of AA5083-H111 aluminum sheets for use in floating photovoltaic structures
Jibrail, Jon (Master thesis, 2023)This investigation focuses on formability aspects of aluminum alloy AA5083-H111 to improve the forming process for floating photovoltaic structures. The study targets the identification of limiting variables and efficiency ... -
Forming effects on high-cycle fatigue in an aluminum sheet structure using the Ottosen-Stenström-Ristinmaa model
Tveit, Sigbjørn; Reyes, Aase; Erduran, Emrah (Chapter, 2022) -
Local buckling of welded I-sections in high strength steel subjected to axial compression
Richardsen, Vegard Mauren (MABY;2022, Master thesis, 2022)As a result of the continuous development in steel production there are at the time several grades of high strength steels (HSS). Due to this increase in strength, structures are potentially designed slenderer than before. ... -
Low velocity impact on crash components with steel skins and polymer foam cores
Reyes, Aase; Børvik, Tore (International Journal of Impact Engineering;Volume 132, 103297, Journal article; Peer reviewed, 2019-05-09)Energy absorbing systems are extensively used in the automotive industry to ensure crashworthiness. Such crash components could typically consist of a sandwich structure with thin ductile plates as skins and a cellular ... -
Mechanical behaviour and the modelling of PVC foam
Yosufzai, Mojtaba; Westbye, Eirik (MABY;2022, Master thesis, 2022)Foam materials are widely applied in many industrial fields due to their superior characteristics regarding high strength to weight ratio. Additionally, they may offer high toleration to damage and exceptional energy ... -
Modelling of crack initiation in fibre-reinforced injection moulded parts
Baniya, Jenish; Tsegai, Berhane Silmon (MABY;2022, Master thesis, 2022)This study addresses the effects of injection moulding weld lines and fibre orientation distributions on the mechanical properties of short fibre-reinforced thermoplastics (SFT). In this thesis, a literature review, as ... -
On the ballistic perforation resistance of a sandwich structure with aluminium skins and aluminium foam core
Brekken, Kristoffer Aune; Bakk, Maria S.; Dey, Sumita; Berstad, Torodd; Reyes, Aase; Børvik, Tore (Peer reviewed; Journal article, 2023)Sandwich structures have proven to be excellent energy absorbents and are found in various protective solutions. In this study, an inhomogeneous aluminium foam was used as core material in a sandwich panel with skins of ... -
Parametric failure limit detection for the sheet metal forming of a floating photovoltaic (FPV) aluminum alloy structure
Tveit, Sigbjørn; Reyes, Aase; Erduran, Emrah (Chapter; Peer reviewed; Conference object; Journal article, 2024)The sheet metal forming process of a floating photovoltaic (FPV) structure is simulated in LS-DYNA. An anisotropic yield criterion and a two-term Voce hardening law are used to model the plastic behavior of AA5083-H111 ... -
Parametric study of façade elements subjected to blast loads
Thomassen, Marense Louise; Øyro, Åshild (MABY;2022, Master thesis, 2022)This study has investigated the effects of scaled distance, façade thickness, Young’s modulus and density on the reaction forces of a façade element subjected to blast load, and to what extent an empirical equation can ... -
A submodeling technique for incorporating sheet metal forming effects in an AA5083 FPV structure
Tveit, Sigbjørn; Reyes, Aase (Structures;, Peer reviewed; Journal article, 2024)While the first generation of floating photovoltaics (FPV) was designed for operation in freshwater reservoirs, the technology is currently expanding to marine territories. In this paper, an FPV structure made from formed ... -
Tensile resistance of bolts in threaded holes
Eriksen, Viktoriia (Master thesis, 2023)There are many standards governing bolted connections. Bolts in threaded holes are not however fully covered by them. Current Eurocodes determine only minimum thickness of steel plates, but length and width are not governed. ... -
Topologioptimalisering i byggebransjen
Mahmood, Qassed; Ismail, Suzana; Alsosi, Hani; Al-Mogahed, Maad (Bachelor thesis, 2023)Denne rapporten, "Hvordan kan topologioptimalisering anvendes i byggebransjen?", har som mål å forklare prinsippene bak topologioptimalisering og hvordan denne teknikken kan implementeres i byggebransjen. Topologioptimalisering ...