| Linking Phase Field and FEM Modeling for Process-structure-Property Predictions | Microstructure
based modeling techniques can be used to reduce development costs of
new materials and to better understand their mechanical behavior. The
purpose of this research is to develop an approach to microstructure
sensitive design that links phase field and finite element modeling to
achieve a more complete coupling between the process-structure-property
relationships. The
methodology consists of four steps: microstructure reconstruction,
statistical analysis, mesh development, and microstructure-sensitive
FEM. The approach has been demonstrated for a Ni-base superalloy utilizing a 3D microstructure obtained through multi-section electron backscatter diffraction.
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| Cellulose-based Nanocomposites as a Potential Scaffold in Cardiovascular Tissue Engineering | Cardiovascular
diseases are the leading cause of death worldwide. Tissue engineering
as a potential candidate to revascularize a diseased vessel has been
under extensive research study over the past few decades. As a major
component, scaffold material plays a significant role for such a
platform to be successful.
The objective of the current research is
to design a fully cellulose-based nanocomposite with an improved
supermolecular structure to potentially introduce a biomaterial
scaffold for cardiovascular tissue engineering.
Methodology:
Fabricating
cellulose nanofibers (CNW) through a multistage procedure consists of
an acid hydrolysis, a few cycles of centrifugations, a dialysis
exchange against distilled water, and a freeze-drying of fibers. Then
pre-dispersing the nanofibers prior to mixing with cellulose acetate
(CAP) matrix to form the final nanocomposite.
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