An experimental method for measurement of strain distribution between wood the flour particles and polymer matrix on micro-mechanical level |
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Authors: | Farzana Hussain John NairnLech Muszyński |
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Affiliation: | a Department of Materials Science and Engineering, Oregon State University, Corvallis, OR, United States b Wood Science and Engineering, Oregon State University, Corvallis, OR, United States |
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Abstract: | Wood plastic composites (WPCs) are comprised of wood flour and thermoplastic polymer. The matrix is typically high-density polyethylene, poly (vinyl chloride), or polypropylene. The effect of morphology and micromechanics of wood flour particles on the mechanical performance of the bulk composite is a relatively unexplored area. The knowledge about the in situ properties of wood particles and the interfacial properties between the wood particles and the polymer matrix in the bio-composites is very limited. The objective of this work is to characterize the full-field deformation and strain distribution in and around wood particles embedded in polymer matrix. The mechanical tests are performed in small-scale tensile loading stage on thin composite samples containing 1-3 wood particles orientated at various angles. The deformations and strains is measured using optical measurement system based on Digital Image Correlation (DIC) principle. |
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Keywords: | Micro-mechanics Wood Particle Particle-reinforcement Digital Image Correlation (DIC) |
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