Blar i USN Open Archive på forfatter "Andreassen, Erik"
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High cycle fatigue life estimation of AlSi10Mg processed by laser powder bed fusion
Hovig, Even Wilberg; S. Azar, Amin; Sunding, Martin Fleissner; Sørby, Knut; M'hamdi, Mohammed; Andreassen, Erik (Journal article, 2018)Fatigue life is known to be dependent on the surface properties of the material. Surface roughness provokes local stress concentration and cause crack initiation even at minute cyclic loads. In laser powder bed fusion, the ... -
High cycle fatigue life estimation of materials processed by laser powder bed fusion
Hovig, Even Wilberg; S. Azar, Amin; Sunding, Martin Fleissner; Andreassen, Erik; Sørby, Knut (Journal article; Peer reviewed, 2019)The fatigue life of metal components is known to depend on the surface topography. For components made by laser powder bed fusion, the roughness of the as‐built surfaces depends on the orientation of the component surface ... -
New Encapsulation Concepts for Medical Ultrasound Probes – A Heat Transfer Simulation Study
Do, Nu Bich Duyen; Andreassen, Erik; Edwardsen, Stephen; Lifjeld, Anders; Nguyen, Hoang-Vu; Aasmundtveit, Knut; Imenes, Kristin (Chapter, 2019)Thermal management is important for medical ultrasound probes to maintain optimal performance, reliability, and lifetime of the devices, as well as to avoid heat-induced damage to the patients’ tissue. This paper presents ... -
Thermal Conductivity and Mechanical Properties of Polymer Composites with Hexagonal Boron Nitride—A Comparison of Three Processing Methods: Injection Moulding, Powder Bed Fusion and Casting
Do, Nu Bich Duyen; Imenes, Kristin; Aasmundtveit, Knut Eilif; Nguyen, Hoang-Vu; Andreassen, Erik (Peer reviewed; Journal article, 2023)Materials providing heat dissipation and electrical insulation are required for many electronic and medical devices. Polymer composites with hexagonal boron nitride (hBN) may fulfil such requirements. The focus of this ... -
Thermal management of an interventional medical device with double layer encapsulation
Do, Nu Bich Duyen; Andreassen, Erik; Edwardsen, Stephen; Lifjeld, Anders; Aasmundtveit, Knut; Nguyen, Hoang-Vu; Imenes, Kristin (Peer reviewed; Journal article, 2021)This paper presents a thermal study of a double-layer encapsulation for an interventional medical device, which operates temporarily inside the human esophagus for cardiac imaging. The surface temperature of test samples, ...