Sakineh Fotouhi

Sakineh Fotouhi
University of Glasgow | UofG · School of Engineering

Doctor of Philosophy
Working on EPSRC project to develop high-performance impact-resistant composites with visibility of damage

About

31
Publications
8,265
Reads
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116
Citations

Publications

Publications (31)
Conference Paper
This paper aims to study the feasibility of smart thin-ply hybrid glass/carbon sensors in quasi-static impact damage detection and analyse different design strategies to achieve an optimal sensor performance. A set of carbon fibre reinforced polymer (CFRP) specimens was manufactured, and the hybrid sensing layers were attached and evaluated. New ar...
Conference Paper
Full-text available
The effect of angle and thickness of plies are investigated on the fracture energy release rate (ERR) in mode II of carbon/epoxy prepreg laminated composites using finite element modelling. The ply's angle of = 0 o , 22.5 o , 30 o , 45 o , 60 o , and 90 o with 4 different thicknesses are investigated. The finite element modelling is done using the...
Article
Full-text available
This is a novel investigation on the possibility of detecting barely visible impact damage (BVID) in composite materials by whisking across the surface via tactile whisker sensors that resemble rats' whiskers. A series of drop tower low-velocity impact tests were performed on quasi-isotropic composite plates. The plates were made from unidirectiona...
Conference Paper
Full-text available
This study investigates the possibility of barely visible impact damage detection in carbon fibre-reinforced polymer composites using a novel coating hybrid composite made of glass/carbon prepregs. A set of quasi-isotropic [45/0/90/-45]4S laminates made from unidirectional T800 carbon/MTM49-3 epoxy prepregs, as substrate, with a thin-ply hybrid com...
Article
Full-text available
Composite structures under impact loading are prone to a variety of damage mechanisms such as delamination, fiber breakage, or matrix cracking. It is proven that the impact-induced damage mechanisms of composite materials are dependent on scaling (in-plane and out-of-plane) and layup configurations. The present study has investigated the effect of...
Article
Full-text available
This paper presents a novel investigation on the robustness of Acoustic Emission (AE) technique on the characterization of indentation-induced Damage Mechanisms (DMs) in scaled laminated composites. AE is used to monitor a comprehensive series of scaled Quasi-Static Indentation (QSI) tests performed on Quasi-Isotropic (QI) S-glass/8552 epoxy compos...
Article
Full-text available
This study proposes the exploitation of deep learning for quantitative assessment of visual detectability of different types of in-service damage in laminated composite structures such as aircraft and wind turbine blades. A comprehensive image-based data set is collected from the literature containing common microscale damage mechanisms (matrix cra...
Article
Full-text available
This paper presents a concise state-of-the-art review on the use of Fiber Reinforced Polymers (FRPs) in bridge engineering. The paper is organized into commonly used FRP bridge components, and different materials/manufacturing techniques used for repairing and construction of FRP bridges. Efforts have been made to give a clear and concise view of F...
Article
Full-text available
Joints and interfaces are one of the key aspects of the design and production of composite structures. This paper investigates the effect of adhesive–adherend interface morphology on the mechanical behavior of wavy-lap joints with the aim to improve the mechanical performance. Intentional deviation from a flat joint plane was introduced in differen...
Article
Full-text available
This paper presents a concise state-of-the-art review on the use of Fiber Reinforced Polymers (FRPs) in bridge engineering. The paper is organized into commonly used FRP bridge components, and different materials/manufacturing techniques used for repairing and construction of FRP bridges. Efforts have been made to give a clear and concise view of F...
Article
Full-text available
This paper investigates the effect of fibre properties of composite structures on the mechanical performance and formation of low-velocity impact damage. Quasi-static indentation tests were conducted on a comprehensive set of scaled Quasi Isotropic (QI) S-glass/8552 epoxy and QI IM7-carbon/8552 epoxy laminates, comparing changes in both in-plane di...
Article
Full-text available
This paper investigates low-velocity impact response of Quasi Isotropic (QI) hybrid carbon/glass fiber reinforced polymer composites with alternate stacking sequences. Cross-ply woven carbon and glass fibers were used as reinforcing materials to fabricate sandwiched and interlayer hybrid composites. For comparison, the laminates containing only-car...
Conference Paper
Full-text available
The selection of material and design of components are two fundamental topics in the industry for producing sustainable and competitive products. To fulfil the safety, strength and endurance requirements of a component, design tools such as topology and shape optimisation can be utilised during the early stages of the design process. The topology a...
Article
Full-text available
Barely visible impact damage (BVID) occurs in composite laminates subjected to low-velocity impact. They can then exhibit significant effect on mechanical performance of laminates. Previously, it is shown, analytically and experimentally, that BVID occurs at a critical energy level and below this energy level there is no induced damage. However, re...
Article
Full-text available
This study investigates the potential of PVDF (polyvinyldiene fluoride) piezoelectric polymer material as a strain/load sensor for engineering structures. The PVDF sensor can be made in any shape/size and are flexible. In addition, the PVDF sensor is passive and offers the advantage of requiring no power to function. PVDF sensors were bonded to an...
Article
Full-text available
This paper introduces a novel bio-inspired design strategy based on the optimised topology of bird bone's joint to improve the strength-to-weight ratio and damage tolerance of composite T-joints. Better structuring the constituents' materials near the sharp bends results in re-distribution of stress over a larger area and reduces the stress concent...
Article
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A tough polyethersulfone (PES) membrane was utilized as a novel reinforcement to improve impact performance of a carbon/glass hybrid composite. The hybrid composite was made of a glass fibre/epoxy block that was sandwiched between two carbon fibre/epoxy blocks. The PES reinforced hybrid composite was compared with an unmodified hybrid composite and...
Article
Full-text available
The use of high strength-to-weight ratio-laminated fiber-reinforced composites is emerging in engineering sectors such as aerospace, marine and automotive to improve productivity. Nevertheless, delamination between the layers is a limiting factor for the wider application of laminated composites, as it reduces the stiffness and strengths of the str...
Preprint
The use of high strength to weight ratio laminated composites is emerging in marine industry and applications as a very efficient solution for improving productivity. Nevertheless, delamination between the layers is a limiting factor for the wider application of laminated composites, as it reduces the stiffness and strengths of the structure. Inter...
Article
Full-text available
Ships are usually under vibration, impact, and other kinds of static and dynamic loads. These loads arise from water flow across the hull or surfaces, the propeller cavitation, and so on. For optimal design purposes and reliable performance, experimental measurements are necessary. These sensors are often used under or near the water, working condi...
Preprint
Full-text available
The use of high strength to weight ratio laminated composites is emerging in marine industry and applications as a very efficient solution for improving productivity. Nevertheless, delamination between the layers is a limiting factor for the wider application of laminated composites, as it reduces the stiffness and strengths of the structure. Inter...
Chapter
Fiber reinforced plastic composites are being increasingly used in engineering applications due to their high specific stiffness and strength. On the other hand, the incidence of internal defects may considerably alter the stiffness and reduce the strength and lifetime of the composites. The principal mode of failure in laminated composite material...
Conference Paper
Full-text available
The electromechanical coupling behaviour of piezo ceramics makes this class of materials useful in electronic device applications, particularly for transducers, sensors, etc. On the other hand piezoelectric materials are very brittle and in order to overcome their brittleness they are mostly utilized as composite form in engineering applications. I...
Article
Full-text available
Piezoelectric materials are widely utilized in electronic device applications such as sensors. This paper investigates the dynamic response of a central crack in a finite piezoelectric layered composite plate under impact load. This novel project studies the crack effect on the finite geometries of a piezoelectric layered composite plate. A finite...
Conference Paper
Glass-reinforced aluminum laminate (GLARE) is a new type of fiber metal laminates which have a special combination of properties and are very suitable for advanced aerospace and aircraft structural industries. In this study, the specimens were manufactured by hand layup procedure and were made of thin aluminum magnesium sheets joined together with...

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