Effective elastic properties of biocomposites using 3D computational homogenization and X-ray microcomputed tomography
نویسندگان
چکیده
A 3D computational homogenization method based on X-ray microcomputed tomography (?CT) was proposed and implemented to investigate how the fiber weight fraction, orthotropy orientation distribution affect effective elastic properties of regenerated cellulose fiber-polylactic acid (PLA) biocomposites. Three-dimensional microstructures reconstructed by means ?CT were used as representative volume elements (RVEs) incorporated into finite element solver within framework. The present Euclidean bipartite matching technique so eliminate generation artificial periodic boundaries use in-situ solution domains. In addition, a reconstruction algorithm enabled finding surface descriptions for each individual in semi-automatic manner, aiming at reducing time labor required labeling. case study presented, through which compared validated with experimental investigations. is thus believed give precise picture microstructural heterogeneities biocomposites complex networks provide an insight influences fibers their properties.
منابع مشابه
Extracting multiple interacting root systems using X‐ray microcomputed tomography
Root system interactions and competition for resources are active areas of research that contribute to our understanding of how roots perceive and react to environmental conditions. Recent research has shown this complex suite of processes can now be observed in a natural environment (i.e. soil) through the use of X-ray microcomputed tomography (μCT), which allows non-destructive analysis of pl...
متن کاملInline 3D X-ray Inspection of Food using Discrete Tomography
While X-ray radiography is commonly used for inline inspection of food, it is insufficient if 3D information is needed from the scanned object. Computed Tomography (CT) on the other hand, does provide 3D information, but is known to be expensive and relatively slow. This work proposes a low-cost X-ray scanning system based on a static X-ray source with a wide cone, along with a large detector w...
متن کاملTheory of X-ray microcomputed tomography in dental research: application for the caries research
Dental caries, a chronic infectious disease, affects more than 90 percent of all adults in the United States and over 80 percent of all adults in Korea. Historically, caries have been prevalent since the time of pre-Neolithic humans (10,000 BC) with a reported prevalence between 1.4% and 12.1% carious teeth, but it was not until the fourteenth and fifteenth century when a sharp increase in cari...
متن کاملDifferences in Trabecular Bone Mechanical Strength Measured by the X-ray Microcomputed Tomography and Compressive Test
The article describes the concept of measurement of the mechanical strength of trabecular bone dissected from human femoral head. When the studies are performed based on the human trabecular bone, there is a risk that correlation can be not achieved due to high discrepancy in the distribution of the bone density and mechanical properties. The compressive tests and X-ray microcomputed tomography...
متن کاملEffective elastic properties of randomly fractured soils: 3D numerical experiments
This paper is concerned with numerical tests of several rock physical relationships. The focus is on effective velocities and scattering attenuation in 3D fractured media. We apply the so-called rotated staggered finite-difference grid (RSG) technique for numerical experiments. Using this modified grid, it is possible to simulate the propagation of elastic waves in a 3D medium containing cracks...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Composite Structures
سال: 2021
ISSN: ['0263-8223', '1879-1085']
DOI: https://doi.org/10.1016/j.compstruct.2021.114302