Results 191 to 200 of about 77,773 (362)

Nanoindentation studies of polyimide thin films with various internal linkages in the diamine component [PDF]

open access: bronze, 2004
Choonkeun Lee   +5 more
openalex   +1 more source

Exploring the Elastic Properties of Interfacial Transition Zone in Concrete Materials Using an Ensemble Learning Approach

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Concrete materials consist of multiple phases with distinct mechanical properties, making it essential to accurately identify the mechanical behavior of both constituent phases and their interfaces for effective multiscale modeling. This study estimates the elastic properties of the interfacial transition zone using a machine learning (ML ...
Jing Xue   +3 more
wiley   +1 more source

Molecular Dynamics Study on Quartz‐Indenter Shape and Depth Effects in Epoxy Interfacial Mechanics

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The interfacial mechanical behavior between epoxy and quartz at the microscale remains inadequately understood. The quartz‐indenter shape and indentation depth (hc) effect on epoxy interfacial mechanical behavior has been investigated through molecular dynamics (MD) simulation of nanoindentation and nanoscratching.
Pengchang Wei   +3 more
wiley   +1 more source

Estimation of longitudinal and transverse stiffness of hemp fibers and their composites using experimental material parameters and invariants

open access: yesPolymer Composites, EarlyView.
The utilization of the trace normalized stiffness parameter facilitates direct comparison between natural and non‐natural composites, as it acts as a material parameter. This facilitates the reverse calculation of fiber properties. Abstract The use of hemp is becoming increasingly favored due to its low carbon footprint and biodegradability advantages ...
Maria Asun Cantera
wiley   +1 more source

Temperature-driven nanoscale brittle-to-ductile transition of the C15 CaAl2 Laves phase

open access: yesMaterials & Design
The influence of temperature on the deformation behaviour of the C15 CaAl2 Laves phase, a key constituent for enhancing the mechanical properties of Mg alloys up to service temperatures of 200 °C, remains largely unexplored.
Anwesha Kanjilal   +6 more
doaj  

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

Performance improvement of carbon fiber‐reinforced ABS composites by introducing fullerene nanoparticles

open access: yesPolymer International, EarlyView.
Fullerene particles were incorporated with CF‐reinforced acrylonitrile–butadiene–styrene terpolymer (ABS) matrix at three different compositions by a melt‐compounding process. These insights are crucial for the optimization of conductive hybrid composites for various applications.
Alinda Öyku Akar   +4 more
wiley   +1 more source

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