Results 41 to 50 of about 513,634 (215)

Balance interlaminar improvement and in-plane adverse impact of hexagonal semi-embedded fine Z-pin reinforced polymer composite

open access: yesJournal of Materials Research and Technology, 2023
This article aims to minimize the adverse impact of Z-pins on the in-plane properties of unidirectional carbon fiber reinforced polymer (CFRP) composites while enhancing their interlaminar fracture toughness by using CF Z-pins.
Shuo Wang   +5 more
doaj   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil   +2 more
wiley   +1 more source

About the impact behavior of woven-ply carbon fiber-reinforced thermoplastic- and thermosetting-composites: A comparative study [PDF]

open access: yes, 2013
This study is aimed at comparing the response of TS-based (epoxy) and TP-based (PPS or PEEK) laminates subjected to low velocity impacts. C-scan inspections showed that impact led to diamond-shaped damage resulting from different failure mechanisms ...
Vieille, Benoit   +5 more
core   +1 more source

Fracture Behaviors of CFRP Laminates in Mode I Interlaminar Fracture Toughness Testing.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1997
Fracture behaviours in mode I delamination tests of CFRP(T300/2500)were studied at cross-head velocity V=0.005∼200 mm/min. In low velocity region, serrations due to repeated unstable fracture appear on load P-displacement δ curve, and they become conspicuous as V becomes smaller.
NOJIMA, Taketoshi, KUSAKA, Takayuki
openaire   +3 more sources

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

Polyetherimide nanofiber membranes imultaneously enhance interlaminar toughness and in-plane mechanical properties of CF/EP composites prepared by VARI process

open access: yesCailiao gongcheng
This study investigates the influence and underlying microstructural mechanisms of electrospun polyetherimide (PEI) nanofiber membranes on the interlaminar toughness and in-plane mechanical properties of vacuum-assisted resin infusion (VARI) process ...
YANG Zehao   +8 more
doaj   +1 more source

Enhancement of the Through‐Thickness Electrical Conductivity of Carbon‐Fiber‐Reinforced Plastics Using Large Graphite Particles

open access: yesAdvanced Engineering Materials, EarlyView.
To enhance through‐thickness conductivity without sacrificing impregnation, large spherical graphite particles are intentionally employed in a low‐viscosity resin. Unlike finer conductive fillers, these particles remain outside the fiber bundles and accumulate in resin‐rich interlaminar regions during molding.
Keito Hosoe   +6 more
wiley   +1 more source

Finite element modelling of mode I delamination specimens by means of implicit and explicit solvers [PDF]

open access: yes, 2012
The simulation of delamination using the Finite Element Method (FEM) is a useful tool to analyse fracture mechanics. In this paper, simulations are performed by means of two different fracture mechanics models: Two Step Extension (TSEM) and Cohesive Zone
Argüelles Amado, Antonio   +11 more
core   +1 more source

Evaluation of fracture toughness of epoxy polymer composite incorporating micro/nano silica, rubber and CNTs [PDF]

open access: yesPolímeros, 2020
In engineering applications, fracture toughness is an essential requirement that determines the life of a material. Epoxy polymers are widely used in fibre-reinforced composite materials.
Ronaldo Câmara Cozza, Vikas Verma
doaj   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge   +4 more
wiley   +1 more source

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