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Browsing NTNU Open by Author "Welo, Torgeir"
Now showing items 1-20 of 99
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40CrMoV13.9 notched specimens under multiaxial fatigue: An overview of recent results
Razavi, Seyed Mohammed Javad; Peron, Mirco; Torgersen, Jan; Berto, Filippo; Welo, Torgeir (Journal article; Peer reviewed, 2017)The multiaxial fatigue strength of circumferentially V-notched and semicircular notched specimens made of 40CrMoV13.9 has been investigated in this paper. The multiaxial load were applied using combined tension and torsion ... -
A Heuristic Approach for Early-Stage Product Development in Extreme Environments
Winjum, Jardar; Wulvik, Andreas; Erichsen, Jorgen Andreas Bogen; Welo, Torgeir; Steinert, Martin (Chapter, 2017)This article considers a heuristic approach for developing products for extreme environments. The authors propose a set of heuristics for exploring environment and product features throughout the design probing process. ... -
A Holistic approach to corporate sustainability assessment: Incorporating sustainable development goals into sustainable manufacturing performance evaluation
Moldavska, Anastasiia; Welo, Torgeir (Journal article; Peer reviewed, 2019)Corporate Sustainability Assessment (CSA) in manufacturing is a framing of tools that guide the organization toward sustainable practices and indicate how the same organization contributes to a global Sustainable Development ... -
A new method for assessing anisotropy in fused deposition modeled parts using computed tomography data
Tronvoll, Sigmund Arntsønn; Vedvik, Nils Petter; Elverum, Christer Westum; Welo, Torgeir (Journal article; Peer reviewed, 2019)Voids in fused deposition modeled (FDM) parts are assumed to be a key driver for their anisotropic behavior. However, these assumptions are based on investigations of voids using only 2D data (microscopy images). This paper ... -
Additive manufacturing of fine-grained and dislocation-populated CrMnFeCoNi high entropy alloy by laser engineered net shaping
Guan, Shuai; Wan, Di; Solberg, Klas; Berto, Filippo; Welo, Torgeir; Yue, Tai Man; Chan, K.C. (Journal article; Peer reviewed, 2019)The equiatomic CrMnFeCoNi high entropy alloy is additively manufactured by the laser engineered net shaping (LENSTM) process, and the solidification conditions, phase formation, as-deposited microstructures, and tensile ... -
Analytical springback assessment in flexible stretch bending of complex shapes
Ma, Jun; Welo, Torgeir (Peer reviewed; Journal article, 2020)Stretch bending is commonly used in the fabrication of profile-based shapes. However, one of the challenges in many bending-type forming processes is controlling springback upon unloading. Springback appears sensitive to ... -
Applicability of Lean Product Development to a company in the marine sector
Synnes, Elisabeth Lervåg; Welo, Torgeir (Chapter, 2017)How can a marine company best combine people, process and technology to optimize its Product Innovation system for advanced, complex products produced at low volumes? This paper discusses the possibility of using the Lean ... -
Application of FE-analysis in Design and Verification of Bolted Joints According to VDI 2230 at CERN
Apeland, Jørgen (Master thesis, 2018)This thesis investigates how finite element analysis (FEA) can be used to simplify and improve analysis of bolted joints according to the guideline VDI 2230. Some aspects of how FEA can be applied to aid design and ... -
Assessment of the Mechanical Integrity of a 2 mm AA6060-T6 Butt Weld Produced Using the Hybrid Metal Extrusion & Bonding (HYB) Process – Part I: Bend Test Results
Sandnes, Lise; Romere, Luca; Berto, Filippo; Welo, Torgeir; Grong, Øystein (Journal article; Peer reviewed, 2019)The present investigation is concerned with butt welding of 2 mm thin AA6060-T6 profiles at room temperature (RT), using the HYB process and AA6082-T4 as filler material. In the as-welded condition, the 1000 mm long butt ... -
Assessment of the Mechanical Integrity of a 2 mm AA6060-T6 Butt Weld Produced Using the Hybrid Metal Extrusion & Bonding (HYB) Process – Part II: Tensile Test Results
Sandnes, Lise; Romere, Luca; Grong, Øystein; Berto, Filippo; Welo, Torgeir (Journal article; Peer reviewed, 2019)The present investigation is concerned with solid state butt welding of 2 mm thin AA6060-T6 profiles at room temperature (RT), using the HYB process and AA6082-T4 as filler material (FM). In Part II of this investigation ... -
Bio-Tribocorrosion Analysis of Additive Manufactured and Wrought 316L Stainless Steel for Biomedical Applications
Stendal, Johan Andreas (Master thesis, 2017)Medical implants manufactured using traditional methods are not satisfying the needs of today s patients. Additive manufacturing (AM) may be the enabling technology which can provide implants with the needed service life, ... -
Concept development of all-new flood protection system
Strømsnes, Simen (Master thesis, 2015)Flood is a common nature disaster, and among all occurring disasters, flood is the one leading to biggest economic losses in Norway. Aquafence, which is the company that have requested this work, is a Norwegian company in ... -
Conceptualizing resilience in engineering systems: An analysis of the literature
Wied, Morten; Oehmen, Josef; Welo, Torgeir (Journal article; Peer reviewed, 2019)It is now widely recognized that many important events in the life cycle of complex engineering systems cannot be foreseen in advance. From its origin in ecological systems, operating without the use of foresight, resilience ... -
Corporate Sustainability Assessment Method Development Using Systems Approach: Addressing the contribution of manufacturing companies to SDGs
Moldavska, Anastasiia (Doctoral theses at NTNU;2018:398, Doctoral thesis, 2018)Launched in 2015, 17 Sustainable Development Goals (SDGs) became the latest conceptualization of sustainable development (SD). Since then, international institutions and researchers have been eager to find means to (1) ... -
Design and optimization of a light-weight aluminium gantry system
Dias Ferreira Vidigal De, Bernardo Joao (Master thesis, 2013)Lattix has developed, manufactured and delivered light-weight Gantry systems for road traffic support since 1995. Besides the low weight, their products are competitive due to capabilities such as the total system delivery, ... -
Design of Ammunition Feed Subsystem - Using 3D Printing in Product Development
Svenungsen, Marius; Tungesvik, Hans Christian (Master thesis, 2017)KPS is a supplier of 30 mm calibre turrets to the US Army. The turrets are currently equipped with a customised ammunition handling system. As the current supplier is the sole manufacturer of the system, KPS wants to ... -
Design og fabrikasjon av knutepunkt i 'jackets' plattformer
Myhre, Morten (Master thesis, 2014)Kværner Verdal AS produserer og leverer stålunderstell til oljeplattformer. For å være konkurransedyktig i oljebransjen er det viktig å kunne kutte kostnader, uten at dette går utover kvalitet, HMS og gjennomføringstid. I ... -
Design-optimalisering av profilbasert fagverkselement for traffikkmaster og-portaler
Steen, Marius (Master thesis, 2015)Lattix AS har utviklet og produsert lette og kollisjonssikre aluminiumsmaster til portalsystemer hovedsakelig for trafikkanvendelser siden 1995. I kombinasjon med lav vekt er produktene deres konkurransedyktige grunnet ... -
Development of a Measuring System to Detect Loads Acting Between the Binding and the Roller Ski
Mayer, Fabian Tobias (Master thesis, 2016)Existing roller ski measuring systems are capable to detect forces between a roller ski and the binding. However, none of them is capable to detect torques. Comprehensive load data is needed for the analysis and improvement ... -
Development of Improvements to a Guiding System for Workboat Handling Systems
Myklebost, Sigurd Rogne (Master thesis, 2017)Along with the development of newer and more extreme vessels, hoisting and lowering workboats and fast rescue crafts (FRC) turn increasingly demanding. The nature of hoisting boats with crew aboard poses serious risk, and ...