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Fast and iterative prototyping for injection molding – a case study of rapidly prototyping
(Journal article; Peer reviewed, 2018)Injection molding is essential for mass manufacturing plastic parts in all sizes and shapes. However, predicting the quality of a mold is tricky, and while computer simulations are highly advanced, they rely on conservative ... -
Fast-track kvalitetssikring i store prosjekter
(Master thesis, 2019)Statens prosjektmodell kan sees på som en sekvensiell faseinndelt modell med to kontrollpunkter i prosjektenes tidligfase. Modellen starter med idefasen før det blir gjennomført en konseptvalgutredning (KVU). Deretter blir ... -
Fatigue analysis and testing of SX-22 couplers
(Master thesis, 2013)General Electrics Oil and Gas delivers couplers for subsea applications. In orderto validate the fatigue properties on one of there products, the SX-22 coupler, afatigue assessment was desired.The seal in the coupler system ... -
Fatigue assessment methods for welded structures and their application to an aluminium T-joint
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:129, Doctoral thesis, 2006)Following a short introduction, the state-of-the-art fatigue life assessment methods based on the nominal stress, the structural hot spot stress and the effective notch stress, as well as the crack propagation analysis are ... -
Fatigue assessment of as‐built and heat‐treated Inconel 718 specimens produced by additive manufacturing including notch effects
(Journal article; Peer reviewed, 2020)The fatigue behaviour of notched and unnotched specimens produced by additively manufactured Inconel 718 were analysed in the as‐built and heat‐treated conditions. The surfaces display high roughness and defects acting as ... -
Fatigue Assessment of AZ31 Magnesium Alloy Weldments - Application of a Local Energy-Based Method
(Master thesis, 2018)Traditional stress-based fatigue criterions are highly dependent of geometry and loading mode and are often based on idealized geometries and loading conditions. These fatigue criteria are seldom applicable in general ... -
Fatigue Assessment of Components Subjected to Non-Proportional Stress Histories
(Master thesis, 2013)The fatigue assessment of components subjected to complex loading histories is a challenging topic. Several criteria intended for use under multiaxial stress-states and non-proportional loading have been proposed by many ... -
Fatigue Assessment of Components Subjected to Non-Proportional Stress Histories
(Master thesis, 2013)The fatigue assessment of components subjected to complex loading histories is a challenging topic. Several criteria intended for use under multiaxial stress-states and non-proportional loading have been proposed by many ... -
Fatigue Assessment of Inconel 625 Produced by Directed Energy Deposition from Miniaturized Specimens
(Peer reviewed; Journal article, 2022)In recent years, the industrial application of Inconel 625 has grown significantly. This material is a nickel-base alloy, which is well known for its chemical resistance and mechanical properties, especially in high-temperature ... -
Fatigue Assessment of Notches and Cracks in Ductile Cast Iron
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:224, Doctoral thesis, 2011)The steadily increasing use of ductile cast iron and the necessity for building larger cast components present new challenges to the designers. In despite of large cast components are designed adhered to standards, unexpected ... -
Fatigue assessment of semi-circular notched specimens produced by Laser Engineered Net Shaping method
(Journal article; Peer reviewed, 2018)As a primary failure mechanism, fatigue failure of additively manufactured metallic parts has attracted considerable attention in both aerospace and biomedical applications. According to some specific design requirements, ... -
Fatigue assessment of steel load-carrying cruciform welded joints by means of local approaches
(Journal article, 2018)In this paper, local approaches are employed to analyse stress distributions, local fatigue indicators of weld toe, and weld root in load‐carrying cruciform welded joints (LCWJs). An extension of previous available equations ... -
Fatigue assessment of steel rollers by means of the local energy
(Journal article; Peer reviewed, 2017)This paper aims to analyses the fatigue behavior of steel rollers using the average strain energy density (SED) criterion. Considering the variability of the V-notch opening angle, a simple scalar quantity, i.e. the value ... -
Fatigue Assessment of Ti–6Al–4V Circular Notched Specimens Produced by Selective Laser Melting
(Journal article; Peer reviewed, 2017)Additive manufacturing (AM) offers the potential to economically produce customized components with complex geometries in a shorter design-to-manufacture cycle. However, the basic understanding of the fatigue behavior of ... -
Fatigue Assessment of Welded Components through Local Approaches
(Doctoral theses at NTNU;2021:309, Doctoral thesis, 2021)Fatigue is a phenomenon having local nature; it is obvious that an accurate fatigue assessment of a component must take into account the local parameters as close as possible to the reality. Fatigue in welded components ... -
Fatigue assessment of welded joints by means of the strain energy density method: Numerical predictions and comparison with eurocode 3
(Journal article; Peer reviewed, 2019)The main aim of the present work is to investigate the effects of different parameters on the fatigue strength of four different welded details through an energetic approach based on the Strain Energy Density failure ... -
Fatigue Behavior of Metallic Components Obtained by Topology Optimization for Additive Manufacturing
(Peer reviewed; Journal article, 2021)The main goal of the present research is to propose an integrated methodology to address the fatigue performance of topology optimized components, produced by additive manufacturing. The main steps of the component design ... -
Fatigue behavior of porous Ti-6Al-4V made by laser-engineered net shaping
(Journal article; Peer reviewed, 2018)The fatigue behavior and fracture mechanisms of additively manufactured Ti-6Al-4V specimens are investigated in this study. Three sets of testing samples were fabricated for the assessment of fatigue life. The first batch ... -
Fatigue Crack Growth behavior of Additively Manufactured 17-4 PH Stainless Steel: Effects of thickness and surface condition
(Master thesis, 2023)Additive Manufacturing (AM) revolutionized the field of manufacturing by enabling the production of complex geometries with greater design freedom. However, the use of these components for structural applications depends ... -
Fatigue crack growth behavior of Ni-Cr-Mo-V steel welded joints considering strength mismatch effect
(Peer reviewed; Journal article, 2021)High strength steel welded joints are usually fabricated by heterogeneous weld metal for reducing the negative impacts of microstructural characteristics and defects on mechanical properties, such as hydrogen embrittlement ...