Blar i Institutt for maskinteknikk og produksjon på tittel
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On measuring, prediction and control of 3D profile bending towards Industry 4.0
(Doctoral theses at NTNU;2022:346, Doctoral thesis, 2022)Aluminum profile bending is one of the methods providing potential to reduce weight and improve fuel efficiency in automotive, aerospace, and other industries. Most of manufacturers make efforts to reduce the number of ... -
On Optimization of Injection Molding Cooling
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:113, Doctoral thesis, 2008)This thesis is devoted to analysis and optimization of the injection molding process with a focus on the mold. In the analysis, both process parameters and the design of the mold are taken in consideration. A procedure has ... -
On Packaging of MEMS. Simulation of Transfer Moulding and Packaging Stress and their Effect on a Family of piezo-resistive Pressure Sensors
(Dr. ingeniøravhandling, 0809-103X; 2003:112, Doctoral thesis, 2004)Micro Electro Mechanical Systems (MEMS) produced to date include IR detectors, accelerometers, pressure sensors, micro lenses, actuators, chemical sensors, gear drives, RF devices, optical processor chips, micro robots and ... -
On prototyping methods to leverage non-rigid materials in the early stages of engineering design
(Peer reviewed; Journal article, 2020)Prototyping has been shown important to facilitate learning, inform decisions and to communicate ideas in engineering design. However, it is not evident which methods, tools and materials to use, as prototyping is practised ... -
On Reliability Challenges of Repairable Systems Using Hierarchical Bayesian Inference and Maximum Likelihood Estimation
(Journal article; Peer reviewed, 2019)Failure modelling and reliability assessment of repairable systems has been receiving a great deal of attention due to its pivotal role in risk and safety management of process industries. Meanwhile, the level of uncertainty ... -
On Risk of Digital Twin Implementation in Marine Industry: Learning from Aviation Industry
(Journal article; Peer reviewed, 2019)This paper presents some aspects of the risk and challenges associated with digital twin implementation in the marine industry by learning from the aviation industry where the digital twin is more widely employed. The ... -
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 ...