Impact Behavior of Fibre Reinforced Laminates | SpringerLink

Impact Behavior of Fibre Reinforced Laminates | SpringerLink

Fundamentals of Low Velocity Impact and Related Literature on FRP

Full article: A single three-parameter tilted fibre Bragg grating sensor to monitor the thermosetting composite curing process

Full article: A single three-parameter tilted fibre Bragg grating sensor to monitor the thermosetting composite curing process

he unique sensing features of the tilted Fibre Bragg Grating (TFBG) as a single three-parameter optical sensor are demonstrated in this work, to monitor the manufacturing process of composite materials produced using Vacuum Assisted Resin Transfer Moulding (VARTM) process. Each TFBG sensor can measure simultaneously and separately strain, temperature and refractive index (RI) of the material where the optical fibre is embedded. .....

Introduction to Fibre Reinforced Polymer Composite Laminates | SpringerLink

Introduction to Fibre Reinforced Polymer Composite Laminates | SpringerLink

Fibre reinforced polymer (FRP) composites are becoming well known and finding widespread applications in various industries due to their high specific stiffness and strength compared to conventional metals and their alloys....

Nonlinear modeling analysis of the coupled mechanical strength and stiffness enhancement of composite materials of a Horizontal Axis Wind Turbine Blade (HAWTB) | SpringerLink

Nonlinear modeling analysis of the coupled mechanical strength and stiffness enhancement of composite materials of a Horizontal Axis Wind Turbine Blade (HAWTB) | SpringerLink

In the present paper fatigue behavior of glass/epoxy composite materials under different stress ratios and for various plies orientation angles has been established. Experimental and numerical analysis (Finite Element Method) were performed on various specimens subjected to cyclic tensile tests in order to outline the influences of stress ratios and the stacking sequence ([02/902]s; [902/02]s; [03/90]s; [903/0]s) on glass/epoxy fatigue properties. Static analysis is done experimentally to identify the stress-strain diagrams, strain to failure, Young’s modulus and tensile strength for each stacking sequence. Comparison between experimental and numerical prediction show good agreement. The Results of this investigation can lead us to choose the most optimal stacking sequence for giving boundary conditions to achieve the maximum fatigue life.

Polymers | Free Full-Text | Hygrothermal Damage Monitoring of Composite Adhesive Joint Using the Full Spectral Response of Fiber Bragg Grating Sensors | HTML

Polymers | Free Full-Text | Hygrothermal Damage Monitoring of Composite Adhesive Joint Using the Full Spectral Response of Fiber Bragg Grating Sensors | HTML

Adhesive joints in composite structures are subject to degradation by elevated temperature and moisture. Moisture absorption leads to swelling, plasticization, weakening of the interface, interfacial defects/cracking and reduction in strength. Moisture and material degradation before the formation of defects are not readily revealed by conventional non-destructive examination techniques. Embedded fiber Bragg grating (FBG) sensors can reflect the swelling strain in adhesive joints and offer an economical alternative for on-line monitoring of moisture absorption under hygrothermal aging. Most of the available works relied on the peak shifting phenomenon for sensing. Degradation of adhesive and interfacial defects will lead to non-uniform strain that may chirp the FBG spectrum, causing complications in the peak shifting measurement. It is reasoned that the full spectral responses may be more revealing regarding the joint’s integrity. Studies on this aspect are still lacking. In this work, single-lap joint composite specimens with embedded FBGs are soaked in 60 °C water for 30 days. Spectrum evolution during this period and subsequent tensile and fatigue failure has been studied to shed some light on the possible use of the full spectral response to monitor the development of hygrothermal degradation.

High mechanical strength aluminum foam epoxy resin composite material with superhydrophobic, anticorrosive and wear-resistant surface - ScienceDirect

High mechanical strength aluminum foam epoxy resin composite material with superhydrophobic, anticorrosive and wear-resistant surface - ScienceDirect

By combining organic materials with metal materials, it is easy to obtain new composite materials with excellent properties. Here, an excellent performance aluminum foam epoxy resin composite material (AFE) was prepared by heat-assisted vacuum infusion technology. Owing to the unique foam structure of aluminum foam (AF) and excellent physical and chemical properties of modified epoxy resin, the AFE with an interpenetrating network structure shows excellent wear resistance, bending resistance and corrosion resistance........

Vibration-based damage detection in a wind turbine blade through operational modal analysis under wind excitation - ScienceDirect

Vibration-based damage detection in a wind turbine blade through operational modal analysis under wind excitation - ScienceDirect

In the present study, a vibration-based structural health monitoring (SHM) method for wind turbine blades using Operational Modal Analysis (OMA) is presented. To simulate the dynamic response of the wind turbine, the NREL FAST tool implemented in QBlade was used to calculate the forces in the time domain along the blade in response to the stochastic excitation of the rotating blade by means of the rotationally sampled turbulence spectrum of the wind....

Experimental study on improving the additively manufactured GMAW and TIG beads using FSP - ScienceDirect

Experimental study on improving the additively manufactured GMAW and TIG beads using FSP - ScienceDirect

The beneficial effect of the friction stir processing (FSP) technique for improving the properties of fabricated additive parts through microstructural refinement and repairing of metallurgical defects has shown its ability to be integrated into a hybrid additive manufacturing system. In the present work, conventional GMAW and TIG-based additive manufacturing processes were further post-processed with friction stir process (FSP)....

Lightweight Metallic Nanocomposites in Energy Applications | SpringerLink

Lightweight Metallic Nanocomposites in Energy Applications | SpringerLink

The demand from consumers leads to the contemporary design of cars with lightweight components. The renewable energy industry is focused on the design of an optimized shape of the components to increase electricity production and deter the usage of fossil fuels. Composite materials like, metal matrix composites (MMCs) are preferred over the use of pure metals and alloys due to their enhanced high strength to weight ratio and lightweight properties. ...

A life cycle assessment comparison of materials for a tidal stream turbine blade - ScienceDirect

A life cycle assessment comparison of materials for a tidal stream turbine blade - ScienceDirect

Electricity generated from tidal streams via underwater turbines has significantly lower greenhouse gas emissions than fossil-fuel derived electricity. However, tidal stream turbine blades are conventionally manufactured from non-recyclable reinforced polymer composite materials. Tidal stream capacity is forecast to be over 1GW by 2030, which using current methods will ultimately produce around 6000 tonnes of non-recyclable blade waste. ...

A life cycle assessment comparison of materials for a tidal stream turbine blade - ScienceDirect

A life cycle assessment comparison of materials for a tidal stream turbine blade - ScienceDirect

Electricity generated from tidal streams via underwater turbines has significantly lower greenhouse gas emissions than fossil-fuel derived electricity. However, tidal stream turbine blades are conventionally manufactured from non-recyclable reinforced polymer composite materials. ....

Effects of submarine-cable types ... preview & related info | Mendeley

Effects of submarine-cable types ... preview & related info | Mendeley

Submarine cables are indispensable for offshore wind farms (OWFs) connected to a power grid. The submarine cable can cause certain degrees of impact on the system performance due to its different lengths, characteristics, electrical parameters, etc. This paper employs the power-system simulation software of Power System Simulator for Engineering (PSS/E) for modeling a future-scheduled OWF, i.e., a large-scale doubly-fed induction generator-based OWF of 200 MW, connected to Jang-Bin distribution substation of Taiwan Power System through five feeders, five circuit breakers, two step-up power transformers, a commercial submarine cable, and an underground cable. This paper simulates and compares the electrical quantities of the studied OWF with different operating capacities under various lengths of three types of commercial submarine cable. The transient surge peak voltages at the common bus of the OWF and the bus of Jang-Bin distribution substation subject to the switching of one of the five circuit breakers of the studied OWF under different lengths of the three types of commercial submarine cable are also compared using the power-system simulation software of ATPDraw in Alternative Transients Program (ATP) version of Electromagnetic Transients Program (EMTP).

J. Compos. Sci. | Free Full-Text | A Cost Model for 3D Woven Preforms

J. Compos. Sci. | Free Full-Text | A Cost Model for 3D Woven Preforms

Lack of cost information is a barrier to acceptance of 3D woven preforms as reinforcements for composite materials, compared with 2D preforms. A parametric, resource-based technical cost model (TCM) was developed for 3D woven preforms based on a novel relationship equating manufacturing time and 3D preform complexity. Manufacturing time, and therefore cost, was found to scale with complexity for seventeen bespoke manufactured 3D preforms. Two sub-models were derived for a Weavebird loom and a Jacquard loom. For each loom, there was a strong correlation between preform complexity and manufacturing time. For a large, highly complex preform, the Jacquard loom is more efficient, so preform cost will be much lower than for the Weavebird. Provided production is continuous, learning, either by human agency or an autonomous loom control algorithm, can reduce preform cost for one or both looms to a commercially acceptable level. The TCM cost model framework could incorporate appropriate learning curves with digital twin/multi-variate analysis so that cost per preform of bespoke 3D woven fabrics for customised products with low production rates may be predicted with greater accuracy. A more accurate model could highlight resources such as tooling, labour and material for targeted cost reduction. View Full-Text

Using recycled waste glass fiber reinforced polymer (GFRP) as filler to improve the performance of asphalt mastics - ScienceDirect

Using recycled waste glass fiber reinforced polymer (GFRP) as filler to improve the performance of asphalt mastics - ScienceDirect

Fiber Reinforced Polymer (FRP), especially glass fiber reinforced polymer (GFRP), has been widely used in construction, navigation, transportation, and chemical engineering due to its excellent physical and mechanical properties....

A review on stochastic multiscale analysis for FRP composite structures - ScienceDirect

A review on stochastic multiscale analysis for FRP composite structures - ScienceDirect

ibre reinforced polymer (FRP) composites have been increasingly applied in engineering structures especially for achieving high demands on structural performance, but they are susceptible to variations in material properties, geometry parameters, etc. mainly arising from manufacturing processes...