A Multiscale Mechanical Model for Plant Tissue Stiffness

• DOI: 10.3390/polym5020730
• Publication Date: 2013-06-10T15:17:56Z
• Authors: Tanvir Faisal; Alejandro Rey; Damiano Pasini
• Keywords: Microfibril

Plant petioles and stems are hierarchical cellular structures, displaying structuralfeatures defined at multiple length scales. The current work focuses on the multi-scalemodelling of plant tissue, considering two orders structural hierarchy, cell wall tissue.The stiffness tissue is largely governed by geometry cells, thecomposition properties its constituents. wallis analogous to a fiber reinforced composite, where cellulose microfibril (CMF) theload bearing component. For multilayered wall, angle (MFA) in themiddle layer secondary (S2 layer) affects longitudinal stiffnessfor values up 40o. MFA turn influences overall stiffness. In this work,the effective model system based collenchyma dicotyledonousplant, Rheum rhabarbarum, computed generic volume fractions.At level, 2-D Finite Edge Centroidal Voronoi tessellation (FECVT) has beendeveloped implemented generate non-periodic microstructure elastic obtained through finite elementanalysis (FEA) coupled with properties. ofthe hierarchically modeled critically important determining structuralproperties stems.