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The influence of ondulation in fabric reinforced composites on dynamic properties in a mesoscopic scale

  • Structural mechanic properties of fiber reinforced plastics depend on the single components’ properties, namely matrix and fiber [5]. Simple micromechanic homogenization theories reach a limit when a laminate consists of fabric reinforced layers instead of unidirectional layers. The ondulations of warp and fill yarn caused by the textile semi-finished product are the reason why the mesoscopic scale, which is in between the microscopic and the macroscopic scale, has to be taken into account when mechanically characterizing fabric reinforced composites [3]. In this scale a mesomechanic kinematic can be derived analytically. Especially, when considering free damped vibrations of structures the repeated acting of the kinematic correlation significantly affects the damping behaviour to higher values compared to theoretically predicted damping ratios. The model is investigated using Finite-Element-Analyses and basically validated experimentally.

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Metadaten
Author:Patrycja Ottawa, Marco Romano, Ingo EhrlichORCiDGND, Marcus WagnerORCiDGND, Norbert Gebbeken
URL / DOI:https://www.dynamore.de/de/download/papers/dynamore/de/download/papers/ls-dyna-forum-2012/documents/materials-5-2
Parent Title (German):11. LS-DYNA Forum, 9. - 10. Oktober 2012, Ulm
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2012
Release Date:2021/03/25
First Page:171
Last Page:172
Institutes:Fakultät Maschinenbau
Technologie-Campus Neustadt an der Donau
Fakultät Maschinenbau / Labor Finite-Elemente-Methode (FEM)
Fakultät Maschinenbau / Labor Maschinendynamik und Strukturanalyse (LMS)
Fakultät Maschinenbau / Labor Faserverbundtechnik (LFT)
research focus:Produktion und Systeme