Dynamic Fluid Structure Interaction of NACRA 17 Foil

Autor: Stig Staghøj Knudsen, Laura Marimon Giovannetti, Brian Nyvang Legarth, Jens Honoré Walther

Publikováno v: Journal of Marine Science and Engineering, Vol 12, Iss 2, p 237 (2024)

The NACRA 17 is a small foiling catamaran that is lifted out of the water by two asymmetric z-foils and two rudder elevators. This paper investigates how foil deflection affects not only foil performance but overall boat behaviour using a numerical F

Externí odkaz: https://doaj.org/article/a29dcb92a6254074a33dc7cf5810e93a

A novel test fixture for mode III fracture characterization of monolithic laminates and composite sandwich specimens

Autor: Christian Berggreen, Lujin Lin, Pietro Sabbadin, Brian Nyvang Legarth

Publikováno v: Journal of Composite Materials. 55:3493-3510

This work presents a novel test fixture for mode III fracture characterization of delaminations in monolithic laminates and face-core debonds in foam core composite sandwich specimens. The test fixture is configured as an extension of the already exi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6fbe700372d8e63c4dea371dfea7777f
https://doi.org/10.1177/00219983211020107

The influence of the fiber–matrix microstructure on the energy release rate of off-axis tunnel cracks in laminates

Autor: Brian Nyvang Legarth, Lars Pilgaard Mikkelsen, Leon Herrmann, Christian F. Niordson

Publikováno v: Herrmann, L, Mikkelsen, L P, Legarth, B N & Niordson, C F 2022, ' The influence of the fiber-matrix microstructure on the energy release rate of off-axis tunnel cracks in laminates ', Composites Part B: Engineering, vol. 247, 110338 . https://doi.org/10.1016/j.compositesb.2022.110338

Microstructural effects on the energy release rate and the mode mixity for tunneling cracks are investigated. A detailed microstructure is based on scanning electron microscopy of a real laminate. Based on a newly developed two-dimensional off-axis f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1073f00767a9f201c6c6b5d460d967a5
https://doi.org/10.1016/j.compositesb.2022.110338

Effects of anisotropy and void shape on cavitation instabilities

Autor: Viggo Tvergaard, Brian Nyvang Legarth

Publikováno v: Tvergaard, V & Legarth, B N 2019, ' Effects of anisotropy and void shape on cavitation instabilities ', International Journal of Mechanical Sciences, vol. 152, pp. 81-87 . https://doi.org/10.1016/j.ijmecsci.2018.12.014

The influence of plastic anisotropy on cavitation instabilities is studied by analyzing full three dimensional cell models containing a small void. The anisotropic material is represented by an elastic-viscoplastic material with a small rate hardenin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12d61355cc4dfc8587ade3e1e6f6420c
https://orbit.dtu.dk/en/publications/d66a1e75-9305-4599-8d17-79c4e0ec9b56

3D study of plastic flow localization at a void-sheet

Autor: Viggo Tvergaard, Brian Nyvang Legarth

Publikováno v: Tvergaard, V & Legarth, B N 2020, ' 3D study of plastic flow localization at a void-sheet ', International Journal of Mechanical Sciences, vol. 173, 105426 . https://doi.org/10.1016/j.ijmecsci.2020.105426

A single layer of voids in a ductile material is considered to study the effect of this material imperfection on the onset of shear band localization, and to study the failure evolution in the void-sheet mechanism. The layer is inclined relative to t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f765ae74332f276033baee342a555bd1
https://doi.org/10.1016/j.ijmecsci.2020.105426