| Reference : Non-localized contact between beams with circular and elliptical cross-sections |
| Dissertations and theses : Doctoral thesis | |||
| Engineering, computing & technology : Materials science & engineering | |||
| Physics and Materials Science | |||
| http://hdl.handle.net/10993/42993 | |||
| Non-localized contact between beams with circular and elliptical cross-sections | |
| English | |
| [fr] Contact non-localisé entre poutres avec des sections droites circulaires et elliptiques | |
Magliulo, Marco  [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >] | |
| Apr-2020 | |
| University of Luxembourg, Esch-sur-Alzette, Luxembourg | |
| Doctoral degree | |
| Beex, Lars | |
| Zilian, Andreas | |
| Bordas, Stéphane | |
| Lengiewicz, Jakub | |
| Hale, Jack | |
| Popp, Alexander | |
| Konyukhov, Alexander | |
| [en] Beam-to-beam contact ; Beam-inside-beam contact ; Finite-element method | |
| [en] Numerous materials and structures are aggregates of slender bodies. We can, for
example, refer to struts in metal foams, yarns in textiles, fibers in muscles or steel wires in wire ropes. To predict the mechanical performance of these materials and structures, it is important to understand how the mechanical load is distributed between the different bodies. If one can predict which slender body is the most likely to fail, changes in the design could be made to enhance its performance. As the aggregates of slender bodies are highly complex, simulations are required to numerically compute their mechanical behaviour. The most widely employed computational framework is the Finite Element Method in which each slender body is modeled as a series of beam elements. On top of an accurate mechanical representation of the individual slender bodies, the contact between the slender bodies must often be accurately modeled. In the past couple of decades, contact between beam elements has received wide-spread attention. However, the focus was mainly directed towards beams with circular cross-sections, whereas elliptical cross-sections are also relevant for numerous applications. Only two works have considered contact between beams with elliptical cross-sections, but they are limited to point-wise contact, which restricts their applicability. In this Ph.D. thesis, different frameworks for beams with elliptical cross-sections are proposed in case a point-wise contact treatment is insufficient. The thesis also reports a framework for contact scenarios where a beam is embedded inside another beam, which is in contrast to conventional contact frameworks for beams in which penetrating beams are actively repelled from each other. Finally, two of the three contact frameworks are enhanced with frictional sliding, where friction not only occurs due to sliding in the beams’ longitudinal directions but also in the transversal directions. | |
| University of Luxembourg - UL | |
| TEXTOOL | |
| Researchers ; Professionals ; Students | |
| http://hdl.handle.net/10993/42993 |
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