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Micromechanics of lignocellulosic fibers
Separating wood into its smallest fragments ‒ lignocellulosic fibers (LCFs) ‒ and treating them, leads to products like paper and paperboard which are connected to our everyday needs. An LCF has a complex hierarchical structure, which consists of several layers and anisotropic properties. With 1-5 millimeter in length and a diameter of tens of micrometer, handling of single LCFs is not easy. These characteristics result in a lack of available experimental methods which can provide a detailed characterization of the fibers’ mechanical and structural properties. Since LCFs are the key component of many products, knowledge of their mechanical behavior is essential for improvements. Furthermore, modeling of fiber networks has gained importance and with increasing complexity of the models, the demand for experimental data that accurately represent the fiber’s behavior is rising.