Results 51 to 60 of about 3,908,089 (354)

Online real time determination of free formaldehyde content during polymerization process of phenolic resin by NIR spectra and a modeling-free method

open access: yesPolymer Testing, 2021
Real time detection of free formaldehyde content during synthesis process of phenolic resins is of great significance for controlling the quality of resin products.
Xiuye Lian   +6 more
doaj   +1 more source

Additive Manufacturing of Gradient Stiffness Honeycombs Using Thermoplastic Polyurethane Composite Material Variations

open access: yesAdvanced Engineering Materials, EarlyView.
By combining porous, solid, and carbon fiber‐reinforced thermoplastic polyurethane within a single 3D printed honeycomb structure, this current work achieved precise control over spatial stiffness while ensuring strong interlayer adhesion. The findings demonstrate enhanced energy absorption and densification strain, outperforming traditional uniform ...
Savvas Koltsakidis   +2 more
wiley   +1 more source

Influence of carbon fiber surface oxygen- containing functional groups on interfacial properties of composites

open access: yesCailiao gongcheng
The interfacial structure of carbon fiber-reinforced polymer (CFRP) is crucial to the performance of composites, which represents a fundamental aspect of composite materials science research. The research on carbon fiber surface treatment is an important
TIAN Siyuan   +4 more
doaj   +1 more source

An Integrated Method for the Vibroacoustic Evaluation of a Carbon Fiber Bouzouki

open access: yesApplied Sciences, 2023
An integrated method, which combines Electronic Speckle Pattern Interferometry, impulse response measurements, finite element method simulations, and psychoacoustic tests, is proposed to evaluate the vibroacoustic behavior of a carbon fiber bouzouki ...
Spyros Brezas   +16 more
doaj   +1 more source

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel   +3 more
wiley   +1 more source

Comparison of microstructural evolution differences during dry-jet wet spinning and wet spinning for polyacrylonitrile precursor fiber

open access: yesScientific Reports
This study compared the microstructural evolution of polyacrylonitrile (PAN) fibers, which serve as precursors for carbon fibers, during both dry-jet wet spinning and wet spinning processes.
Jiping Wang   +5 more
doaj   +1 more source

Recycling of Carbon Fiber Reinforced Composite Polymers—Review—Part 2: Recovery and Application of Recycled Carbon Fibers

open access: yesPolymers, 2020
The paper presents some examples of new technological solutions for the recovery and re-use of recycled carbon fiber in automotive and railway industries, as well as in aviation and wind turbine constructions.
A. Bledzki   +5 more
semanticscholar   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

open access: yesAdvanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo   +3 more
wiley   +1 more source

Preparation carbon nanotube-decorated carbon fibers under low pressure for epoxy-based unidirectional hierarchical composites with enhanced interlaminar shear strength

open access: yesPolymer Testing, 2021
Multi-walled carbon nanotubes (CNTs) were grown in-situ on the surface of carbon fibers (CFs) at low pressure by a vertical chemical vapor deposition (CVD) reactor. The surface of CFs was modified by electrochemical anodization, and the growth morphology
Jianjie Qin   +9 more
doaj   +1 more source

Selective Hydroxylation of Carbon Fiber Paper for Long‐Lasting Hydrophilicity by a Green Chemistry Process [PDF]

open access: hybrid, 2022
Madeleine K. Wilsey   +7 more
openalex   +1 more source

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