Magdi Elmessiry

• PhD
• Professor (Full) at Alexandria University

The study examines flax fiber waste as a possible environmentally friendly material for thermal insulation panels given the rising need for sustainable building materials. The research examines 25 panels manufactured with different panel designs, fiber blends, binder types, thicknesses, and densities for thermal conductivity. The tested samples had...

This study evaluates yarn stiffness measurement techniques, focusing on 3-point and 4-point bending tests, the cantilever method, and the hanging pear loop method. It examines the effects of force and bending moment distribution on the stiffness of yarns such as recycled polyester, carbon, Kevlar, Vectran, and glass. The 4-point bending test consis...

Oil spills in aquatic environments are catastrophic events that pose a significant global environmental challenge. This study addresses these issues by developing innovative poly(vinyl chloride) (PVC) nanofiber mats enhanced with nanographene particles, leveraging their exceptional surface area and unique graphene properties. Recent advances in gra...

Acoustic properties refer to the way a material absorbs, reflects, or transmits sound waves. The acoustic properties of woven and non-woven fabric polymeric composites can vary depending on the specific type of composite and the materials used. Woven fabric composites are made by interlacing two or more layers of fabric together using a weaving pro...

This study explores the stiffness enhancement in textile composites using four different fiber types: carbon, Kevlar, Vectran, and high-tenacity polyester (HTP). Pretension levels of 0.2, 2, 5, and 10 N were applied. A setup was developed to measure fiber stiffness. Results indicate that carbon fiber consistently demonstrates the highest stiffness...

The research investigates the unique characteristics and benefits of using nonwoven fabrics and polymer I cross-section composites in concrete beams. These materials show improved strength, flexibility, and corrosion resistance compared to conventional steel-reinforced beams, offering promising solutions for various construction applications. This...

The dynamic failure behavior of multifilament high-performance yarns plays a crucial role in determining the impact resistance of advanced materials used in diverse applications such as aerospace, automotive, and protective textiles. The falling tower setup was designed to investigate the impact behavior of high-performance yarns. These models offe...

Recycled fibers obtained from pre-textile waste present advantages and challenges in acoustic absorber design. This study examines the potential of incorporating textile waste into acoustic absorption systems, with a focus on pre-used waste, to increase the percentage of recycled fibers in the textile industry using the quantitative method Used to...

The study aims to provide valuable insights into the development of sustainable and cost-effective composite materials, particularly focusing on the combination of palm fiber and jute fabric. The inclusion of palm fibers significantly enhances the stiffness and strength of the composite. The research involves the fabrication of composites with a co...

Traditional silk, known for its strength, flexibility, and comfort, shows promise as a lightweight, comfortable material for stab-resistant armor. This study explores enhancing silk’s knife-stabbing resistance for soft body armor through surface treatments. This study aims to augment the knife-stabbing resistance of silk fabric for soft body armor....

The slashing mechanism is influenced by various properties that impact fabric slicing, contingent upon both fabric design and yarn-slicing characteristics. This study explores the slash resistance of soft armor, underscoring the essential need for enhancements in fabric design and fiber properties. Yarn-slicing qualities and the fabric’s pattern pl...

The cement industry, an essential contributor to global infrastructure development, generates substantial amounts of airborne pollutants during cement production processes. Bag filters play a crucial role in mitigating these emissions by capturing particulate matter and improving air quality. However, conventional bag filters eventually wear out an...

Fabric/unsaturated polyester composites have garnered significant attention due to their lightweight properties and superior mechanical characteristics. Despite these advantages, the strength of joints within these composites remains a crucial aspect requiring thorough investigation. This paper presents a study focused on comprehending the factors...

Shear modulus is a critical factor that significantly influences the mechanical properties and overall performance of these textiles. Understanding the mechanics behind fabric performance during forming operations is of paramount importance, especially given the diverse use of various fabric types as key components in composite products. Fabric's a...

Blockchain technology has emerged as a disruptive force in recent years, holding the potential to revolutionize various industries. One sector that stands to greatly benefit from blockchain is the automotive industry. In 2021, the global automotive market size reached USD 2.73 trillion and is projected to reach USD 3.27 trillion by 2028, exhibiting...

The inherent complexity of textile preforms and a high degree of consistency in dry fabrics and yarns present a number of modeling challenges, including uncertainty in geometrical characteristics under external loads, non-elastic deformations of fibrous media, and multiple deformation modes at the fiber and yarn scales. The prediction of the compac...

The object of this paper is to investigate the acoustic insulation properties of needle-punched nonwovens produced from recycled polyester waste blended with virgin polyester serving as supportive material. The research work also studies the effect of different processing parameters of needle punching nonwoven machines through the investigation of...

The developed technologies for creating the three-dimensional shape for the formation of feminine personal protective armor proved to be applicable in the case of high-performance protective triaxial fabric, made of polyester, Vectran, and Kevlar. The suggested method combines cyclic loading and deep forming under heat. Cup shape geometry was analy...

Damage, generated during drilling processes, will affect the material integrity and further delamination through the fiber-reinforced composite cross-section. Drilling is necessary for the assembly processes of composite parts. This article deals with the effect of the weave parameters on the drilling mechanism. The mechanism of the yarn shearing r...

Punching resistance properties of the fabric are vital for several applications such as slash-resistant clothing. In this paper, the penetration of a puncher through a plain Kevlar woven fabric was analyzed to recognize the process of punching and the mechanism of yarn breakage. The model focused on the study of the difference between fabric that i...

DR. Magdi El Messiry RESUME

This paper focused on the investigation of the slub yarn parameters and the relationships of the aerodynamic friction along the surface of the slub yarn. The calculation of the frictional drag force was analyzed for spun yarns, which proves it has an irregular surface due to the irregularity of the yarn diameter along its length. In the case of slu...

Automotive textiles are one of the most important markets in the technical textile sector. Various types of requirements must be considered in the development of the interior fabrics to satisfy both esthetic and functional demands. Many factors are affecting the properties of the car upholstery fabrics, for instance textile material, yarn specifica...

An analysis of fiber mechanics during cutting is conducted using a rotating cutting set up. It was found that high cutting speeds, low cutting angles, and high cutting normal forces lead to low values of cutting force. In this study, a set of high performance organic and inorganic fiber types are tested throughout different conditions of cut testin...

In several applications, the industrial and protective fabrics might be subjected to punching by the rigid sharp spikes. Fabric resistance to the penetration of the puncher at a constant rate was studied. The analysis of the factors influencing the resistance of the fabric and an explanation of the puncture mechanism were generated. Punching force-...

Natural fibers and their waste are widely used all over the world, and their production has been increasing continuously. But, the rubber crumbs from used tire disposal are nonbiodegradable and present significant problems about their end-of-life given a critical environmental impact. These problems require recycling policies to provide the collect...

The textiles capable of cutting resistance found applications in the industrial and military areas to construct flexible lightweight soft body armors. In the present work, a theoretical model to understand the mechanism of fabric cut resistance in a different direction for weft-knitted, triaxial, and multiple layers structures. An experimental stud...

The worldwide awareness of the environment urged the search for new composites based on bio fibres. As a result, the focus shifted back to natural fibres, which are biodegradable and typically less expensive than synthetic fibres.Besides, there exists a huge amount of agricultural waste suitable to be used as bio fibre composite materials. Such com...

Medinnol project activity

Student assessment and incentives are critical elements of the educational process. Additionally, they are key ingredients to improving student acquisition of knowledge. For the assessment to be effective, an incentive must be tied to the achievement or the process becomes meaningless. A predominant incentive is a negative approach, in which the st...

In several applications, the industrial and protective fabrics might be subjected to punching by the rigid sharp spikes. Fabric resistance to the penetration of the puncher at a constant rate was studied. The analysis of the factors influencing the resistance of the fabric and an explanation of the puncture mechanism were generated. Punching force-...

In recent decades, attention has been focused on the design of protective soft fabrics against cutting. The anticipated textiles should shield the wearer's body from threats caused by pointed or sharp-edged objects, such as a knife, sharp blade, or spike. Therefore, as it is of great importance to design slash-resistant fabrics, it is also necessar...

Natural fibers from renewable natural resources offer the potential to act as biodegradable reinforcing materials and substitute for the utilization of glass or carbon fibers and inorganic fillers. The properties of the natural fibers, specifically low cost, lightweight, biodegradability, noncorrosive properties, high specific strength, and Young’s...

Nanofiber membranes are extensively used in ultra- and micro-filtration purposes due to their high surface-to-volume ratio. However, nanofiber membranes do not have adequate strength to withstand forces acting on the filter surface, especially when using very low porosity membranes. In this study, PVC nanofiber mats and nanofiber composite membrane...

Noise pollution is one of the harmful physical sources in the textile industry, which is among those industries that are faced with noise exposure problems. The results of environmental sound measurements at modern textile mills have shown that the sound pressure level varied from 95 to 130 dB, where the highest sound pressure level was at weaving...

There are several types of sound absorptive materials, such as natural and synthetic fibers, acoustic mineral wool, acoustic polyester panels, acoustic foam, cotton batts, that reduce the acoustic energy of a sound wave as the wave passes through. In this work, the use of nonwoven materials made of cotton, polyester, and polypropylene fibers for th...

Cutting processes using blades have found applications in many industries; for example, in garments, fiber–polymer composites, and high-performance fabric forming. In recent decades, the process of cutting the material using a robotic-controlled blade has raised concern about the value of the pressure and the cut force required for a certain type o...

In this paper, the experimental work provided the testing of Jute-cement composites containing several modified Jute fabrics that were prepared to be used in the intensification of the cracking strength and toughness of cracked concrete, fiber/cement sheets or architectural constructions through the improvement of the mechanical properties of the f...

The spreading dynamics of small oil drops over nanofiber layers has been investigated to improve the oil spill management process. Although liquid transport studies have been used to compare different substrates, the actual effect of the fibrous substrate structure has not been precisely investigated. Nanofiber substrate structures consist of micro...

Cellulose Acetate and Poly (Vinyl Chloride) nanofibers have found diverse usages in several different domains. The nanofiber mat has proven to be an efficient media for the ultra-filtration when applied on the surface of other woven or nonwoven filters media. However, this thin layer of nanofiber application needs to have enough strength that can w...

The drape is an important characteristic of textile fabrics. Several studies have been concerned with the mechanism of fabric drapability and the methods of its measurements. In this study, a new drape coefficient ‘DCM’, evaluating the shape of the fabric drape, is defined in terms of the drape projection, the shape and the number of the folds and...

Over the last few years, the introduction of blockchain technology has brought forth a new set of challenges concerning blockchain token economics and its underlying business needs. Many Initial Coin Offerings (ICOs) have focused on a single token that facilitated the initial project funding but complicated the actual implementation.

The cut resistance is the most important property of the fabrics used for protective gloves, anti-stabbing and bulletproof fabrics. A newly designed apparatus for measuring the fabric cut resistance under various loading is developed. Several triaxial fabrics were examined, Polyester, Vectran and Kevlar-29, with different fabric weights. The effect...

Textile materials are widely used in the industrial textiles. The yarn and fabric fatigue are not easily prearranged hence, in most cases the apparatuses used for applying cyclic loading under flex fatigue conditions will affect only one section of the yarn and fabric and the results will depend on the level of heterogeneity of the tested material....

Nanofiber mats of poly(vinyl chloride) (PVC) and cellulose acetate (CA) encapsulated with silver (Ag) nanoparticles were fabricated via electrospinning for potential use as antimicrobial food packaging materials. 16 wt% PVC was prepared in 1:1 w/w tetrahydrofuran—N,N-dimethylformamide while 16 wt% CA was prepared in 3:2 (w/w) Acetone—N,N-dimethylfo...

The most significant feature of Nanofiber electrospinning is its capability of producing very fine Nanofiber mats which can be suitable as oil absorbent. This paper presents an investigation of oil adsorption and retention of poly(vinyl chloride) (PVC) Nanofiber mat absorbent. The emphasis is on the numerical modeling of the oil sorption capacity a...

The present work attempts to understand the inter-relation between the spun yarn fiber volume fraction and the fabric fiber volume fraction when adapted in the reinforced polymer composite. The yarn diameter of the natural fiber spun yarn has a great heterogeneity that affects the fiber volume fraction at the different basic units of the fabric. Th...

Slub yarns are frequently used for fabric production. Due to the nature of these yarns, the difference between the base yarn and slub diameter is very high, leading to high variation in the fabric thickness, which gives fabric look and also influences the fabric mechanical properties. The slub geometry affects the twist distribution on its length c...

Recently, there is the increasing interest in the area of the protective vests, either against the bullets or protection from the most realistic threats within domestic frontline operations: Edged weapon, knives, and medical needles. Also, it is extended to civilian and armored fighting vehicle and aircraft to withstand the impact or shrapnel, bull...

The buckling of a woven fabric influences its performance throughout processing and during actual use. In addition, this phenomenon reflects on the recovery of the textile–polymer composites. The mechanics of the buckling behavior of woven, knitted or non-woven fabrics have a large number of different approaches, and the obvious inconsistency of ap...

Fiber reinforced polymer composites (FRPC) can be used in new or repaired reinforced concrete structures. Fiber reinforced polymer composite yarn (FRPCY) can be formed as rods of different diameter and length to be used in the formation of concrete structures due to their superior light weight, corrosion resistance, the lack of material ductility a...

The fashion industry represents a significant portion of the global gross domestic product, however, it is plagued by cheap imitators that infringe on the trademarks which destroys the fashion industry's hard work and investment. While eventually the copycats would be found and stopped, the damage has already been done, sales are missed and direct...

Modern textile supply chain systems are both large and complicated, with global sources and suppliers feeding into production lines that can span continents. A substantial amount of defects can’t be directly traced back to defective batches that entered the supply chain along the way, causing waste and frustration downstream. Traceability is almost...

2D fabrics are used widely and to good effect as a reinforcement for many planer composites and simple curved structures, i.e. a cylindrical arc. There are, however, manufacturing difficulties in the formation of composite structures which are curved across two axes, i.e. a bowl shape. This can be addressed by manufacturing “3D” fabric preforms; ho...

This paper focuses on the fabrication processes of jute reinforced polymer composites (FPC) made with the use of both untreated jute fabric and pultruded jute fabric. The pultruded jute fabric performs were processed and cured separately using polymer with different components blending ratio ‘α’ (resin/solvent ratio). 2-step technique where the com...

Development of the cooperation between the universities and industries. SWOT analysis.

The objective of this work was to study the influence of low fiber volume fraction on the mechanical properties of the Jute fabric reinforced cementitious composites, suggesting the thin sheet of pultruded fabric instead of Jute as a suitable solution for the forming complex matrix shapes. The present work investigates the pultrusion of a Jute fabr...

Fiber reinforced concrete (FRC) has become increasingly applied in civil engineering in the last decades. Natural fiber fabric reinforced cement composites are considered to prevent damage resulting from an impact loading on the cementite plate. Flax woven fabric that has a high energy absorption capability was chosen. To increase the interfacial s...

Due to the inherent hydrophobic nature of Polyester fibers, fabrics formed entirely from Polyester fibers exhibit relatively poor moisture absorption and release properties introduce an uncomfortable condition to the wearer. The present study focuses on adding enhanced and durable hydrophobicity properties to Polyester fabrics, through coated using...

The manufacturing of composites often requires transformation of 2-D fabrics into various structural 3-D shapes through preform processing without over straining of the yarns or wrinkling. Sheet forming of woven fabric composite by combined cyclic stretch and deep drawing was suggested. In order to prevent the wrinkling, the geometrical and mechani...

Natural Fiber Textile Composite Engineering sheds light on the area of the natural fiber textile composites with new research on their applications, the material used, the methods of preparation, the different types of polymers, the selection of raw materials, the elements of design the natural fiber textile polymer composites for a particular end...

Sonic velocity of knitted fabric samples was measured by Dynamic Modulus Tester, and the relationship between changes in the mechanical properties and their sonic velocity was investigated. Through the measurements, sonic velocity was found to be highly correlated not only with fabric static elastic modulus but also with fabric breaking strength, b...

Cellulose Acetate (CA) and Poly (Vinyl Chloride) (PVC) nanofiber mats were electrospun into nanofibers. The morphology and mechanical properties of nanofiber mats were evaluated versus different solution concentrations. Solutions were prepared in mixed solvent systems of 2:1 (w/w) Acetone/N,N-Dimethylacetamide (DMAc) and 3:2 (w/w) Acetone/ N,N-Dime...

Protective body armors, providing protection against stab threats, have long been in a focus of substantial interest. Lightweight fabric for flexible body armors that satisfy the customized fit, comfort, and protection should be considered. Sharp impact experiments were conducted on single and multilayer fabrics of Kevlar29, Vectran, and Polyester...