Browsing Institutt for maskinteknikk og produksjon by Title
Now showing items 2730-2749 of 4068
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On risk-based maintenance: A comprehensive review of three approaches to track the impact of consequence modelling for predicting maintenance actions
(Journal article; Peer reviewed, 2021)Since gas plants are progressively increasing near urban areas, a comprehensive tool to plan maintenance and reduce the risk arising from their operations is required. To this end, a comparison of three Risk-Based Maintenance ... -
On Solid-State Deposition of Metal Structures: Conceptualization of a New Additive Manufacturing Method based on Hybrid Metal Extrusion & Bonding
(Doctoral theses at NTNU;2019:249, Doctoral thesis, 2019)This thesis presents the conceptualization of a new solid-state process for additive manufacturing (AM) of extrudable metals and alloys. The process is based on the Hybrid Metal Extrusion & Bonding (HYB) technology and has ... -
On the analysis of bonded step lap joints
(Journal article; Peer reviewed, 2018)This paper discusses the stress and strain states in adhesively bonded step lap joints from the perspective of the strain energy density solutions determined via the elastic and elastic-plastic solutions obtained using the ... -
On the applicability of fused deposition modeling for prototyping
(Doctoral theses at NTNU;2019:155, Doctoral thesis, 2019)During the last decade, fused deposition modeling (FDM) has managed to become the most used additive manufacturing technology for rapid prototyping. The surge in application of FDM is thought to be due to a severe price ... -
On the Applicability of Sustainability Assessment Tools in Manufacturing
(Journal article; Peer reviewed, 2015)The literature on sustainability assessment abounds with different tools, methods, models and frameworks, and the amount of literature on sustainability assessment applied to the field of manufacturing is rapidly growing. ... -
On the application of the volume free strain energy density method to blunt V-notches under mixed mode condition
(Peer reviewed; Journal article, 2020)This work investigates the possibility to apply the strain energy density method, as regards blunt V-notches under mixed loading condition, through finite element models with a free mesh pattern. It is worth underlining ... -
On the Corrosion Fatigue of Magnesium Alloys Aimed at Biomedical Applications: New Insights from the Influence of Testing Frequency and Surface Modification of the Alloy ZK60
(Peer reviewed; Journal article, 2022)Magnesium alloys are contemporary candidates for many structural applications of which medical applications, such as bioresorbable implants, are of significant interest to the community and a challenge to materials scientists. ... -
On the corrosion, stress corrosion and cytocompatibility performances of ALD TiO2 and ZrO2 coated magnesium alloys
(Journal article; Peer reviewed, 2022)Magnesium alloys are increasingly studied as materials for temporary implants. However, their high corrosion rate and susceptibility to corrosion-assisted cracking phenomena, such as stress corrosion cracking (SCC), continue ... -
On the damage tolerance of 3-D printed Mg-Ti interpenetrating-phase composites with bioinspired architectures
(Peer reviewed; Journal article, 2022)Bioinspired architectures are effective in enhancing the mechanical properties of materials, yet are difficult to construct in metallic systems. The structure-property relationships of bioinspired metallic composites also ... -
On the effect of the node and building orientation on the fatigue behavior of L-PBF Ti6Al4V lattice structure sub-unital elements
(Peer reviewed; Journal article, 2021)Despite the great potential of additively manufactured (AM) metallic lattice materials, a comprehensive understanding of their mechanical behavior, particularly fatigue, has yet to be achieved. The role of the sub-unital ... -
On the Enabling Effect of Simulations for Decision-Making Support for Supply Chain Resilience A Preliminary Investigation
(Master thesis, 2023)Formålet med denne oppgaven er å gi en grundig analyse av proaktive og reaktive strategier identifisert gjennom ett systematisk litteraturstudie, utført for å øke robustheten til forsyningskjeder og redusere de negative ... -
On the evaluation of ALD TiO2, ZrO2 and HfO2 coatings on corrosion and cytotoxicity performances
(Peer reviewed; Journal article, 2021)Magnesium alloys have been widely studied as materials for temporary implants, but their use has been limited by their corrosion rate. Recently, coatings have been proven to provide an effective barrier. Though only little ... -
On the External Effects Affecting Torsional Modes in Guide Vanes
(Journal article; Peer reviewed, 2019)Rotor stator interaction in high-head Francis turbines has led to several failures in recent years. Increasing efficiency demands require design optimization of the turbine components, which may lead to thinner profiles. ... -
On the fatigue and dwell-fatigue behavior of a low-density steel and the correlated microstructure origin of damage mechanism
(Peer reviewed; Journal article, 2021)The present work deals with revealing the fatigue and dwell-fatigue behavior and correlated damage mechanisms of Fe–Mn–Al–C lightweight steel. Surprisingly, alteration in loading mode from monotonic to cyclic induces ... -
On the fatigue properties of a third generation aluminium-steel butt weld made by hybrid metal extrusion & bonding (HYB)
(Peer reviewed; Journal article, 2021)The present investigation is concerned with the high-cycle axial fatigue behaviour of a third generation Al-steel butt weld made by hybrid metal extrusion & bonding (HYB). In this particular weld, metallurgical bonding is ... -
On the Hybrid Metal Extrusion & Bonding (HYB)
(Doctoral theses at NTNU;2022:92, Doctoral thesis, 2022) -
On the hydrogen embrittlement behavior of nickel-based alloys: Alloys 718 and 725
(Peer reviewed; Journal article, 2020)Nickel-based superalloys have attracted immense attention in the oil and gas industry due to their outstanding combination of mechanical properties and corrosion resistance. In corrosive service environment, hydrogen ... -
On the interaction between corrosion and fatigue which determines the remaining life of bridges
(Journal article; Peer reviewed, 2018)This paper studies the prior effect of corrosion on fatigue on the growth of cracks that arise from natural corrosion in steel bridges. It is shown that these 2 effects need to be simultaneously analysed. If not, then the ... -
On the long-term correlations in the twinning and dislocation slip dynamics
(Peer reviewed; Journal article, 2020)The present work aims at gaining new insights into the dynamics of the dislocation slip and twinning processes, which govern the majority of possible scenarios of plastic deformation in structural metals and alloys. Using ... -
On the Mechanical Energy Involved in the Catastrophic Rupture of Liquid Hydrogen Tanks
(Peer reviewed; Journal article, 2022)Hydrogen can play a central role in the energy transition thanks to its unique properties. However, its low density is one of the main drawbacks. The liquefaction process can drastically increase its density up to virtually ...