Determination of local material properties of OSB sample by coupling advanced imaging techniques and morphology-based FEM simulation
-
Vaclav Sebera
und
Lech Muszyński
Abstract
The goal was to determine local mechanical properties inside of oriented strand board (OSB) based on a realistic morphology-based finite element (FE) model and data acquired from a physical test performed on the same material. The spatial information and local grayscale intensity from CT-scans obtained from small OSB sample was transformed into a 2D regular morphology-based FE mesh with corresponding material properties. The model was then used to simulate the actual compression test performed on the specimen using simplified boundary conditions. The simulated strain fields from the model were compared with the actual strain field measured on the specimen surface during the compression test by means of a full-field optical method, named digital image correlation (DIC). Finally, the original set of material properties was adjusted by an iterative procedure to minimize the difference between the simulated and the measured strain data. The results show that the developed procedure is useful to find local material properties as well as for morphological modeling without the need of segmentation of the image data. The achieved results serve as a prerequisite for full 3D analyses of the complex materials.
©2011 by Walter de Gruyter Berlin Boston
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Artikel in diesem Heft
- Original Papers
- Fundamental understanding of pulp property development under different thermomechanical pulp refining conditions as observed by a new Simons’ staining method and SEM observation of the ultrastructure of fibre surfaces
- Enhancing dewatering of thermo-mechanical pulp (TMP) based papermaking through enzymatic treatment
- Mechanisms of TMP peroxide bleaching using Mg-based alkalis
- Properties of wood chips for thermomechanical pulp (TMP) production as a function of spout angle
- Determination of local material properties of OSB sample by coupling advanced imaging techniques and morphology-based FEM simulation
- Combined bound water and water vapour diffusion of Norway spruce and European beech in and between the principal anatomical directions
- Oxygen plasma-treated enzymatic hydrolysis lignin as a natural binder for manufacturing biocomposites
- Influence of the adhesive formulation on the mechanical properties and bonding performance of polyurethane prepolymers
- Characterizing perpendicular-to-grain compression (C⊥) behavior in wood construction
- Predicting the strength of Populus spp. clones using artificial neural networks and ε-regression support vector machines (ε-rSVM)
- X-ray scattering and microtomography study on the structural changes of never-dried silver birch, European aspen and hybrid aspen during drying
- Equilibrium moisture content (EMC) in Norway spruce during the first and second desorptions
- Fungal degradation of bamboo samples
- qPCR as a tool to study basidiomycete colonization in wooden field stakes
- Meetings
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