نتایج جستجو برای: variable stiffness composite laminates

تعداد نتایج: 419376  

2006
V. Koissin D. S. Ivanov S. V. Lomov I. Verpoest

This article addresses the experimental investigation and modelling of the uneven fibre distribution inside yarns of a textile composite. The test data is given for the tri-axial carbon-fibre braid; a considerable irregularity is revealed for the fibre distribution along and across the yarns. The importance of this effect for the damage resistance is illustrated with a simple finite-element (FE...

Journal: :Journal of Natural Fibers 2023

Physical and mechanical performance of natural fiber composites can be tailored by hybridizing with synthetic fibers. Jute fibers are promising highly available at a low cost in some countries, they have been used several applications, the extra benefit helping socially depressed people who commonly explore this plant. This work investigates effect hybridization on properties jute/glass jute/ca...

Journal: :Composites Part B-engineering 2021

A novel Bayesian optimisation framework is proposed for the design of stronger stacking sequences in composite laminates. The first to incorporate high-fidelity progressive damage finite element modelling a data-driven methodology. Gaussian process regression used as surrogate model, minimising number computationally expensive objective function evaluations. case open-hole tensile strength inve...

2016
Z. Shen Y. G. Xu Andreas Chrysanthou A. Chrysanthou

A major concern affecting the efficient use of carbon fibre reinforced composite laminates in the aerospace industry is the low velocity impact damage which may be introduced accidentally during manufacture, operation or maintenance of the composite structures. It is widely reported that the contact behavior of composite laminates under low-velocity impact can be obtained under quasi-static loa...

2018
Yanfei Liu Zhenqing Wang Hao Li Min Sun Fangxin Wang Bingjie Chen

In this paper, a new shape memory alloy (SMA) hybrid basalt fibre reinforced polymer (BFRP) composite laminate was fabricated and a new surface modification method with both silane coupling agent KH550 and Al₂O₃ nanoparticles was conducted to enhance the interface performance. The mechanical performance of BFRP composite laminates with and without SMA fibres and the influence of SMA surface mod...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Kai Zhang Huiling Duan Bhushan L Karihaloo Jianxiang Wang

We reveal the sophisticated and hierarchical structure of honeybee combs and measure the elastic properties of fresh and old natural honeycombs at different scales by optical microscope, environmental scanning electron microscope, nano/microindentation, and by tension and shear tests. We demonstrate that the comb walls are continuously strengthened and stiffened without becoming fragile by the ...

رضا ناطقی جهرمی, , سید هژیر بهرامی, , مجید طهرانی دهکردی, ,

In this study, the effects of different parameters on charpy impact properties of pure and hybrid composite laminates reinforced with basalt and glass filaments were investigated. For this purpose, five types of basalt and glass laminates with quasi-isotropic stacking sequence, namely, a pure basalt, a pure glass, two inter-ply hybrid and one intra-ply hybrid composites were produced...

Journal: :Polymers & Polymer Composites 2023

Femur fractures are often treated by fixing metallic bone plates in the fractured area. But subjected to stress shielding. To overcome shielding, a material with similar strength and stiffness that of human can be better suited. The present study focuses on fabrication carbon-flax/bioepoxy hybrid composite. femur plate was modeled using SOLIDWORKS ® 2020 3D modeling software package. Hybrid com...

2007
I. De Baere W. Van Paepegem J. Degrieck

Usually, fatigue tests on fibre-reinforced composites are performed in uni-axial tension/tension or tension/compression fatigue [1], providing the S-N data. Although bending fatigue tests are not widely accepted as a standard, they are used a lot for research purposes [2] and they do have some important advantages [3]. In case of three-point bending fatigue, the history of bending force versus ...

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