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Poster

Investigating the multilayer fiber-reinforced structure of the wood cell using computer simulations and additive manufacturing

Sunday (01.01.2040)
00:00 - 21:28
Part of:
Line-Up:
- Poster The versatile usage of wrinkled surfaces 1 Bernhard Alexander Glatz
- Poster Penguin feather mimicking oil infused elastomer for anti-icing property 1 Dipl.-Ing. Nguyen Thanh-Binh
- Poster Radiation-based methods for surface modification of supramolecular peptide fibrils 0 Juhaina Bandak
- Poster Investigation of crack propagation of hierarchically structured ceramic materials on different length scales using bending tests 1 Cecilia Müller
- Poster Tobacco mosaic virus disks, preparation of samples to investigate mineralization by low voltage electron microscopy 1 Dr. Sabine Eiben
- Poster Deformation of Liquid-Liquid Phase Boundary as Template for Novel Surface Structured Polymer Particles and Coatings 1 Helena vom Stein
- Poster Sclerenchymatic tissue in Banksia follicles – The effect of moisture on dimensional and mechanical properties 1 Friedrich Reppe
- Poster Reconstructing in-situ nanofibrillar orientation and mechanics in arthropod cuticle using X-ray diffraction modelling 1 Ph.D. Yanhong Wang
- Poster Structural origins of morphing in plant tissues 1 Prof. Dr. Hanoch Daniel Wagner
- Poster What is the effect of cell network topology on the poro-elastic properties of bone? 1 Alexander van Tol
- Poster The fibrillar-level mechanisms of mutability in echinoderm connective tissue analysed using in situ synchrotron small-angle X-ray scattering 1 Dr. Himadri Shikhar Gupta
- Poster Growing bone-like tissues on negative Gaussian curvature surfaces 1 Prof. Dr. John Dunlop
- Poster Gradient porous materials for reliable structured adhesives 1 Ph.D. Di Tan
- Poster Transfer of surface properties of wheat leaves to technical surfaces 1 Miriam Huth
- Poster Damping Behaviour of Bioinspired and Natural Fibre Composites 1 Wilhelm Woigk
- Poster Cancer cells biomineralize ionic gold into nanoparticles-microplates via secreting defense proteins with specific gold-binding peptides 1 Dr. Ajay Vikram Singh
- Poster Microstructural Assessment of Calvarial Fusion in Mice of Different Ages and its Biomechanical Implications 1 Dr. Junning Chen
- Poster Diffusion-limited electroless silver reduction on copper for "porous monocrystal" 1 Dr. Nikolay Ryzhkov
- Poster Multiscale simulations of directed spider dragline silk self-assembly by flow 1 Dipl.-Ing. Ana Herrera
- Poster Inspirational Multiscale Natural Structures 1 Dr. XiaoMeng Sui
- Poster The Exoskeleton of Scorpions: from Structure to Mechanical Function 1 Israel Kellersztein
- Poster Investigating the multilayer fiber-reinforced structure of the wood cell using computer simulations and additive manufacturing 1 Laura Zorzetto
- Poster Light guided 3D-structuring of EPS produced by red algae 1 Moritz Klotz
- Poster Structural optimization of biopolymer composite Cottonid by variation of manufacturing parameters 1 Matthias Langhansl
- Poster Biomineralization of Materials made of Engineered Spider Silk Proteins 1 Vanessa Wicklein
- Poster Micro-Ikebana by Biomimetic Crystallization of Alkaline Earth Carbonates 1 Shota Kobayashi
- Poster Bioinspired hairy surfaces 0 Stefan Müllers
- Poster Reagent-free modification of bio-hydrogels by electron irradiation towards biomedical applications 1 Stefanie Riedel
- Poster Controlled Modification on Wood via SI-ATRP 1 Marta Vidiella del Blanco
- Poster Plant Biomimetics: Surface-Structured Pollen Particles and Transparent Flower Petals 1 Prof. Dr. Olaf Karthaus
- Poster Coupling of polymers to tobacco mosaic virus: towards the production of amphiphilic virus tubes 1 Dr. Sabine Eiben
- Poster Mechanical stable sulfobetainc Hydrogels - A candidate for biomedical application 1 Ramona Bianca Jasmin Ihlenburg
- Poster Structuring V2O5 Nanocomposites to Adapt the Sponge Spicules’ Architecture 1 Achim Diem
- Poster Fibers, Yarns and Non-Woven Meshes – Tough Morphologies Made of Recombinant Spider Silk Proteins 1 Fabian Müller
- Poster Recombinant Spider Silk-based Hybrid Materials for Advanced Energy Technology 1 Tamara Aigner
- Poster Bio-mediated materials syntheses 1 Dr. Daniel Van Opdenbosch
- Poster Design of Biomimetic Thin Coatings Composed of Cellulose Beta-Nanocrystals for Epitaxial Crystallization and Coassembly of 1D Nanoparticles 0 Dipl.-Ing. Zihao Lu
- Poster Seeded Mineralization Leads to Prismatic-Type CaCO3 Thin Coatings with Multiple Structural Functions 0 Ming Li
- Poster Multifunctional Layered Magnetic Composites 1 Christian Debus
- Poster Cuttlebone-inspired Structures for Mechanical Damping 1 Dipl.-Ing. Andrea Knöller

Session P.1: Poster discussion evening
Belongs to:
Session P: Poster Presentation


The arrangement of stiff helicoidal fibers into a softer matrix is a widespread strategy adopted by nature to finely tune local mechanical behavior of biological materials. The wall of wood cells, for instance, is traditionally described as three-layer structure; each layer consists of a matrix reinforced by cellulose microfibrils. In the thick middle layer, microfibrils show a twisted motif forming an angle with the cell axis, pivotal in modulating both stiffness and failure strains of the wood material, with the stiffer configurations being also the less deformable. Microfibrils are less ordered in the outer and inner layers, that occupy 15% of wall thickness and whose potential biomechanical role is less understood. The aim of this work is to investigate the mechanical behavior of wood-like synthetic composites as a function of fiber orientation in different concentric layers. As starting configuration, we considered single-layer cylindrical shells made of a soft matrix reinforced by stiff spiral fibers at various winding angles. The role of thin reinforcing layers was investigated considering their position (inner and/or outer with respect to the main middle layer) and fiber direction (vertical or horizontal). We used finite element simulations to compute apparent stiffness and buckling resistance of the virtual composites. The most efficient position of the reinforcing layer for buckling resistance resulted to depend on the orientation of the fibers in the middle layer: increasing the winding angle shifted it from the outside to the inside of the cylinder (with horizontal reinforcing fibers). The opposite was true for reinforcing layers having vertical fibers. Moreover, three-layer configurations with both inner and outer layers having horizontal fibers resulted in the highest increase in buckling strength with no modification of apparent stiffness and sample dimensions, uncoupling strength from stiffness by adding inner architecture. We then used multi-material 3-dimensional polyjet printing to fabricate three-layer cylindrical shells, with each layer featuring an elastomeric matrix reinforced by spiral fibers of a rigid polymer. Quasi-static compression tests revealed the fundamental role of horizontal reinforcements in avoiding catastrophic failure after the buckling critical stress peak. Therefore, construction principles observed in wood can enhance mechanical performance and could extend functionalities of polymer-based composites.

Speaker:
Laura Zorzetto
University of Li?ge
Additional Authors:
  • Prof. Dr. Davide Ruffoni
    University of Liege