This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of Editors. The article duplicates significant parts of a paper that had already appeared in Modares Mechanical Engineering. 2018, 18 (4):79-89 https://mme.modares.ac.ir/article-15-7749-fa.html. One

High performance structures require the use of different materials to meet their demanding requirements. Especially fibre reinforced polymer composites are nowadays often bonded to metals in order to take the most advantage of the materials properties and to minimize their disadvantages. However, the interface in such bi-material assemblies often represents the weakest point and thus has to be carefully

Gypsum-based composites (GCs) have been widely used in interior linings such as walls and ceilings due to their unique advantages including low cost, good habitability, and good fire resistance. The existence of many gypsum resources such as natural gypsum (NG) and industrial gypsum by-products ensure that GCs are very popular. The main weaknesses of GCs, especially those originating from industrial

Herein, both rigid cellulose nanocrystal with photoactive groups (CNC-Cc) and amorphous polycarbonate (extracted from discarded CD) were functionalized as reinforcing agents to obtain poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/polycarbonate/CNC-Cc (PHBV/PC/CNC-Cc) composite films via a Pickering emulsion approach. With the addition of PC and CNC-Cc, an obvious “soft-rigid” synergistic effect on the

Ceramic matrix composites exhibit excellent high temperature properties and are candidate materials for structural applications from jet engines to nuclear fuel cladding. The strength and deformation behavior of these composites are intrinsically tied to the properties of the fiber/matrix interface. This research introduces a novel technique to evaluate the fundamental friction and wear characteristics

Designing and manufacturing multi-functional, lightweight and high-performance body armour materials and assemblies have attracted intense attention recently due to fast-growing military applications. There is an urgent need to reduce the weight and increase the flexibility of body armours without compromising their ballistic protection capability. Natural/biological armour materials and assemblies

Polylactic acid (PLA) and organosolv lignin were mixed at different ratios and extruded to obtain PLA-lignin composite filaments. PLA was replaced with lignin up to 20 wt%. Two plasticizers (polyethylene glycol (PEG) 2000 and struktol TR451) were added in varying concentrations to enhance the properties of PLA_L20 (20% lignin in PLA) composite filaments. The effect of lignin in PLA, and PEG, and struktol

The high adsorption capacity of the phase change mediums in porous supports is a key requirement for the shape-stabilized phase change materials (ss-PCMs) with high latent heat. Here, ship-shaped diatom (Pennales) frustule-based composite ss-PCMs with high polyethylene glycol (PEG) absorption capacity and high phase change enthalpy was prepared by a solution-assisted vacuum impregnation method for

A fundamental understanding of structure-property relationship of carbon fiber reinforced polymer (CFRP) composites fabricated by selective laser sintering (SLS) is essential to provide guidance to improve the mechanical properties in this promising additive manufacturing process. In the present study, we propose a new computational framework to evaluate the mechanical behavior of SLSed CFRP based

To realize the highly controllable performance of fiber-reinforced composites (FRCs), many efforts have been made to tailor the fiber alignment. Researchers mainly focus on controlling the fibers arranged in one direction. However, there is a lack of work to build a densely packed fiber forest on a quasi 2D plane. Herein, we proposed a simple and efficient papermaking method to prepare a uniform long

Ground tire rubber (GTR) has been used as a sustainable low-cost modifier in various composites. However, due to the hydrophobic nature of GTR, it is in compatible with most matrices and results in deterioration in both mechanical and physical properties of composites. This necessitates pre-modification of the powdered rubber to improve the interfacial bonding at the rubber-matric interface. The most

Negative stiffness (NS) mechanical metamaterials have excellent application prospect in a broad range of fields such as energy trapping, repeated energy absorption and so on. Although various kinds of NS mechanical metamaterials have been proposed, one configuration cannot simultaneously achieve multi-stability and mono-stability. This paper presented a novel multifunctional NS mechanical metamaterial

The intelligent deformation of organic matter in nacre lamellar structure endows nacre high strength and toughness. However, how to increase energy dissipation by imitating the organic layer deformation of nacre to achieve superior mechanical properties with high strength and toughness is still a challenge. In this study, we employed dynamic small molecular hydrogen bonds to toughen a nacre-like composite

The present study reports for the first time the fabrication of stable smart coatings on AZ31 Mg alloy based on the decoration of layered double hydroxide (LDHs) film by soft protein molecules functionalized by n-type semiconductor nanoparticles. For this goal, the LDHs film fabricated on the plasma electrolysis film of Mg alloy was immersed in a solution containing WO3 nanoparticles functionalized

Graphene (GN) and carbon nanotube (CNT) have already been explored their potential crack-monitoring abilities in the field of composite materials, but a relatively low sensitivity to shear damage is still a practical problem. This work aims to improve the monitoring sensitivity to out-of-plane shear damage by constructing hybrid GN/CNT film sensors with a GN weight loading of 0–10%. The prepared GN/CNT

Ceramic/metal composites have drawn much attention in heat dissipations due to excellent performances, however, issues rise with the uncontrollable architecture and unstable properties resulting from metal-particle fusions at the high-temperature sintering. This study reports a BaTiO3 (BT) composite at a high Ag loading of 60 vol% with a stable composite architecture achieved by utilizing core-shell

In the present study a range of glass fibre (GF) coatings (roving sizings and yarn finishes) were investigated for the manufacture of high-performance composite laminates based on Polyamide 6 (PA6) and Polyphenylene Sulfide (PPS) matrices. Matrix compatibility and resulting composite performance of press-consolidated laminates was evaluated by macro-mechanical testing on the basis of 3-point flexural

The objective of study is evaluate the relationship of internal bonding properties with the density profile-determined by X-ray densitometry technique, perpendicular tensile and screw-holding tests. The composite were manufactured by compression. Pinus elliottii and Swietenia macrophylla wood were used as raw materials, thermoplastic recycled and urea formaldehyde as adhesive. The impact of the maximum

This study investigates the interlaminar shear behavior of 3D printed CFRP composites fabricated by fused deposition modeling (FDM) through a combined experimental and numerical study. Short beam shear (SBS) tests were performed to quantitatively characterize interlaminar shear strength (ILSS) of 3D printed continuous and short CFRP composites. Numerical simulations incorporating the extended finite

Capacitive neural interface provides a safer way to record the neural activity with reduced risk of current leakage and improved biocompatibility. The emerging of soft neural interfaces makes it necessary to propose dielectric coating with excellent flexibility and dielectric property for the soft capacitive neural interface. In this study, the feasibility and strategy of using the ferroelectric ceramic/elastomer

This review provides a comprehensive analysis of available peer-reviewed literature in which graphene and/or its derivatives are incorporated into a polymer matrix in order to enhance the final properties and functionalities of the three dimensional (3D) printed structure. Research in which graphene derivatives have been incorporated into plastic 3D printing technologies such as Fused deposition modeling

3D printing represents a great opportunity for biocomposites to be developed for the first time on the same time scale as their synthetic counterparts. The purpose of this article is a global investigation of the relationship between slicing parameters (i.e. Layer Height (LH), Interfilament Distance (ID), Number of Trips (NT), Number of Layers (NL)), microstructure and induced tensile properties in

Balanced electrical conductivity and mechanical properties are always of great significance for the practical applications of conductive polymer composites (CPCs), especially for the inherent brittle poly(lactic acid) (PLA)-based CPCs. Herein, the phase control methodology (i.e. carbon nanotubes (CNTs) and intense extensional flow field synergistically induced PLA crystallization) was proposed to achieve

Continuous ultrasonic welding is a promising high-speed and energy-efficient joining method for thermoplastic composite structures. Our aim was to identify and understand differences between the static and continuous ultrasonic welding process for thermoplastic composites. In particular, melting of the interface, consumed power and energy density, temperature evolution at the weld interface, and optimum

This paper describes a manufacturing method for the ribs of a cylindrical anisogrid composite structure without an outer skin. This research presents two direct compression techniques for the ribs during wet filament winding with T700 continuous carbon-fiber tows. In addition, the strength of the helical rib manufactured using the proposed compression process was compared to that of the manufactured

Confinement of thermally conductive fillers is crucial for polymer based composites to achieve highly efficient filler-filler contact and construct conductive pathways. In order to obtain superior thermal conductivity, a novel strategy was proposed to construct separated architectures in energetic composites by selective distribution of graphene nanoplates (GNPs) in confined and continuous spaces.

In this paper, an attempt has been made to conduct controlled low velocity impact experiments in quasi-isotropic carbon fiber reinforced polymer (CFRP) composites of increasing thicknesses to generate barely visible impact damage (BVID) that creates 1″ impact damage diameter. Such impacted CFRP coupons with controlled damage diameter would serve in the future for validation of structural health monitoring

Thermo-stamping is critical for the structural application of two-dimensional (2D) woven fabric reinforced thermoplastics (WFRTPs). Reliable simulation models for thermo-stamping of 2D WFRTPs can effectively reduce the time and tooling cost caused by trial-and-error development, and thus are crucial for mature manufacturing. This article presents a survey of the literature on the characterization and

Owing to its intrinsic structure, thermal stability and dimension effects, black phosphorene (BP) has great potential in manufacturing advanced-performance polymer composites. However, the shortcoming of instability and re-agglomeration enables great challenges toward its application. Herein, a lanthanide metal ligand ((CF3SO3)3Er) has been employed to decorate few-layer BP nanosheets. By means of

This paper numerically characterizes the effects of normal, blunt impact damage on unidirectional carbon-fiber reinforced polymer (CFRP) circuit analog absorbers (CAA). Single-layer CFRP CAAs are fabricated using a wet-layup technique and are then subjected to controlled impact scenarios. A free-space measurement system is implemented to track and quantify changes to the complex permittivity and sheet

Structures used in space applications demand the highest levels of stiffness for their mass whilst also performing in a hostile environment. To partly address these requirements and so as to also pack efficiently for stowage during launch we propose a new type of compact telescopic morphing lattice space boom. This boom stows within a 1U CubeSat volume and is lightweight being only 0.4 kg. The boom

This review explores state-of-the-art and new perspectives description of scaffold-based strategies utilized in in-suit bone tissue engineering. The bone defects caused by severe trauma and tumor resection can't be healed by themselves. It needs to apply exogenous bone induction materials to recover effectively. In recent years, with the rapid development of bone repair materials and tissue engineering

In modern aerospace, nuclear energy, electric power and other high-tech industries, increasingly more requirements are put forward for the enhanced performance and functionality of lubricating materials. In recent years, intelligent lubricating materials and structures with properties on demand and bionic functions by imitating the life system have aroused great interest. The trigger and feedback behaviors

A novel material and process was developed using fibre-reinforced powder-epoxy to produce unidirectional towpreg with a pilot-scale towpregging line, for cost-effective production of large composite structures for the renewable energy market, specifically for wind and tidal turbine blades. Electrostatic attraction was used to coat fibre tows with powder epoxy and either joule or radiant heating employed

One-component epoxy adhesives, in which the epoxy resin and curing agent are premixed, have many commercial advantages including reduced working time and stable performance. However, these adhesives suffer from a short shelf life even at room temperature. Here, core-shell structured curing agents were prepared via a dry particle coating (DPC) process that improved the storage stability of one-component