Results 31 to 40 of about 1,125 (187)

Improvement in interfacial fracture toughness of multi-material additively manufactured composites through thermal annealing

Forces in Mechanics, 2021
An experimental investigation is performed to investigate the effect of post-processing heat treatment on the interfacial fracture toughness of bi-material additively manufactured semi-crystalline polymer composite.
Md Fazlay Rabbi, Vijaya Chalivendra
doaj   +1 more source

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

Journal 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, Min Li, Zhe Che, Shaokai Wang, Yizhuo Gu, Wei Zhang   +5 more
doaj   +1 more source

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

TRANSACTIONS 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.
Taketoshi NOJIMA, Takayuki KUSAKA
openaire   +3 more sources

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

Polímeros, 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

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Enhanced interlaminar fracture toughness of CF/PEEK laminates by interleaving CNT-decorated PEEK films

Polymer Testing, 2023
The weak interlaminar properties severely hinder the high-property applications of carbon fiber (CF) reinforced thermoplastic composites. Here, interlaminar properties were significantly enhanced by introducing carbon nanotube (CNT) decorated polyether ...
Xukang Wang, Wei Jiang, Qiang He, Cheng Chen, Muhan Zhang, Zhigao Huang, Huamin Zhou   +6 more
doaj   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 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

Cailiao 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, NING Bo, CHEN Zhengguo, XU Xuehong, LIU Weiping, XUE Yi, LIU Yong, ZHANG Hui, YU Jianyong   +8 more
doaj   +1 more source

Graphene‐Skinned Alumina Fiber: Continuously Scalable Fabrication and Its Electrothermal Application in Fiber‐Reinforced Polymer Composites

Advanced Science, EarlyView.
Graphene‐skinned alumina fiber (GAF) is a new composite with graphene conformally grown on individual alumina fibers via chemical vapor deposition (CVD). GAF's dynamic, continuous and scalable production is achieved by using a home‐made roll‐to‐roll (RTR) CVD system featuring integrated degumming and growth chambers. GAF possesses tunable conductivity,
Xiaobai Wang, Wenjing Jiang, Jingnan Wang, Yuejie Zhao, Enshan Liu, Fushun Liang, Yixin Zhang, Qingqing Liu, Kangyi Zheng, Yuyao Yang, Fan Yang, Xiao Jiang, Yue Qi, Zhongfan Liu   +13 more
wiley   +1 more source

Effect of Designed 3D Reinforcement in Mitigating Machining Damage on CFRP Plates

Polymer Composites, EarlyView.
Effect of Edge Tufting on Surface Quality, Damage, and Mechanical Performance in CFRP Machining: A Comparative Topographical and Structural Analysis. ABSTRACT Composite materials made of carbon fiber‐reinforced epoxy (CFRP) are widely used in aerospace fields due to their high strength‐to‐weight ratio. However, due to low out‐of‐plane resistance, these
Thiago Luiz Lara Oliveira, Daniel Brighenti Bortoluzzi, Antônio Carlos Ancelotti Jr   +2 more
wiley   +1 more source