Results 231 to 240 of about 135,615 (350)

Effect of Orthotropic Variable Foundations and Unconventional Support Conditions on Nonlinear Hygrothermoelectric Vibration of Porous Multidirectional Piezoelectric Functionally Graded Nonuniform Plate

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This article investigates the nonlinear vibration behavior of porous multidirectional piezoelectric functionally graded nonuniform (PFGN) plates resting on orthotropic variable elastic foundations and subjected to hygrothermal loading. The sigmoidal law is employed to define the multidirectional gradation properties, incorporating porosity ...
Pawan Kumar   +2 more
wiley   +1 more source

Sustainable two‐step functionalization of carbon fibers (CFs) with polyethyleneimine and investigation of curing kinetics in composite materials

open access: yesPolymer Composites, EarlyView.
We followed the functionalization steps outlined in the figure to obtain carbon fibers (CFs) functionalized with branched polyethyleneimine (b‐PEI). The entire process was carried out under mild conditions, including plasma activation and low‐temperature heating, using an eco‐friendly solvent (water).
Edoardo Albertini   +7 more
wiley   +1 more source

Effects of oxidation and silanization on the durability and tensile properties of carbon nanotube‐reinforced vinyl‐ester nanocomposites

open access: yesPolymer Composites, EarlyView.
Schematic representation of the functionalization, processing steps, and tensile properties of carbon nanotube‐reinforced vinyl ester nanocomposites. Abstract Carbon nanotubes (CNTs) have received significant attention due to their exceptional physical and mechanical properties. Advancements in surface modification techniques have facilitated their use
Yasaman Alaei   +4 more
wiley   +1 more source

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