Article
Materials Science, Composites
Mahmoud Awd M. Allah, Dalia A. Hegazy, Hassan Alshahrani, Tamer A. Sebaey, Marwa Abd A. El-baky
Summary: This article explores the energy absorption capability of laterally loaded glass fiber reinforced polymer (GFRP) tubular components filled with montmorillonite clay (MC). GFRP components with different MC weight percentages were created using wet-wrapping by hand lay-up techniques. The crushing load, energy absorption versus displacement responses, and deformation histories of the tubes were analyzed. Regression models were built to predict energy absorption indicators, and complex proportional assessment (COPRAS) was used to determine the optimum MC weight percentage.
POLYMER COMPOSITES
(2023)
Article
Engineering, Manufacturing
Dursun Meric, Hasan Gedikli
Summary: The study found that optimizing fiber alignment angle can increase the amount of absorbed energy by up to 118%.
INTERNATIONAL JOURNAL OF CRASHWORTHINESS
(2022)
Article
Materials Science, Textiles
Xu Zhang, Yuanming Xu, Shuming Zhang
Summary: This study investigated the crashing performance of braided composite tubes using the finite element method, and optimized the parameters of the tubes using the dynamic Kriging model and the artificial bee colony optimization algorithm. The results showed that the optimized parameters significantly improved the structural properties of braided composite materials.
FIBERS AND POLYMERS
(2022)
Article
Engineering, Mechanical
Dongdong Chen, Yanwen Liu, Maozhou Meng, Benhuai Li, Xiaoyu Sun, Bing Yang, Shoune Xiao, Tianyuanye Wang
Summary: The choice of external trigger and fiber hybridization configuration significantly affects the stability and material cost of composite structures in crashworthiness. However, there is a lack of understanding on impact characteristics and energy-absorption mechanisms. This study investigates the axial crushing responses and crashworthiness characteristics of energy-absorption composite structures through experiments and finite element analysis. The findings contribute to practical guidelines for crashworthiness design of heavy duty composite structures.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Civil
M. A. Mansor, Z. Ahmad, M. R. Abdullah
Summary: This study aims to evaluate the crushing behavior of aluminium-glass fibre reinforced plastic (GFRP) fibre metal laminate (FML) subject to dynamic loading conditions. The FML tube showed a good energy absorption capability, making it a suitable lightweight candidate for energy absorbing applications.
ENGINEERING STRUCTURES
(2022)
Article
Mechanics
Tamer A. Sebaey, Dipen Kumar Rajak, Hassan Mehboob
Summary: Fiber reinforced plastics filled with polyurethane foam are widely used as energy absorbers for safety enhancement. The study found that using PU foam inside CFRP composite tubes increases peak load and energy absorption, while internal CFRP reinforcements do not significantly improve energy absorption but do improve peak load.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
R. Guelou, F. Eyma, A. Cantarel, S. Rivallant, B. Castanie
Summary: This study introduces the static compression results of sandwich tubes, showing that structures with a greater number of I214 poplar layers in the core and carbon/glass fiber skins exhibit improved energy absorption performance.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Tamer A. Sebaey, Harri Junaedi, Hassan Alshahrani, Rakan Alyamani, Khaled Akkad
Summary: During the design process of automotive composite structures, the designer needs to consider both the mechanical characteristics and the sensitivity of the design to environmental factors in order to ensure safety and feasibility. This experimental study focuses on the effect of thermal aging on the crashworthiness of carbon/epoxy composite tubes. The results show that the addition of foam improves load carrying capacity and energy absorption, while the thermal degradation and debonding of the matrix are the main factors in reducing crashworthiness.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Textiles
Kh Abd El-Aziz, Dalia A. Hegazy, Marwa A. Abd El-baky
Summary: The inclusion of montmorillonite clay (MMT) can significantly enhance the energy absorption capability of glass/epoxy composites, making them an excellent choice for energy dissipating members in vehicles.
FIBERS AND POLYMERS
(2022)
Article
Engineering, Civil
Xiaolin Deng, Shangan Qin, Jiale Huang
Summary: The crashworthiness of a new type of axially varying thickness lateral corrugated tube (AVTLCT) was studied under axial impact, showing that the PCF and CFE performance advantages are achieved with AVTLCT with k>0. The study also utilized a surrogate model and genetic algorithm for multiobjective optimization under unconstrained and constrained conditions.
THIN-WALLED STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Jiangping Huang, Rongqiang Liu, Jianguo Tao
Summary: This paper investigates the deformation mechanism and energy absorption performance of tubes with corrugated patterns. Through simulations and experimental validation, the energy absorption in different deformation modes was analyzed, with results showing that tubes deform in D mode have the highest energy absorption.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2021)
Article
Engineering, Multidisciplinary
Yasar Kahraman, Ortac Akdikmen
Summary: The study investigated the energy absorption behavior of nested tubes under lateral loading conditions. It was found that the sample with 5 tubes yielded the most efficient design when specific energy absorption capability, work effectiveness, and energy efficiency parameters were considered.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2021)
Article
Materials Science, Multidisciplinary
Xiaolin Deng, Shangan Qin, Jiale Huang
Summary: The study shows that the AVTLCT with N = 6 has better scalability and exhibits higher energy absorption and lower F-max values compared to the AVTLCT with N = 10 after optimization.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2021)
Article
Polymer Science
Yang Wei, Shuaifeng Tang, Si Chen, Qiudong Wang, Jiaqing Wang
Summary: This paper proposes a new type of polyurethane foam-filled bamboo composite tube and conducts experimental research on it. The results show that the foam filler can enhance the stability and bearing capacity of the tube, but not all foam-filled tubes are superior to unfilled tubes. Reducing the height of the bamboo composite tube and increasing the number of winding layers can effectively increase the positive effect of the foam filler on energy absorption.
Article
Mechanics
Tamer Ali Sebaey
Summary: This study investigated the performance of composite tubes under aggressive environmental conditions, and found that aging led to a decrease in peak load but an increase in crush force efficiency, energy absorbed, and specific energy absorbed. The formation of calcium and magnesium layers on the surface of specimens aged in seawater was also observed.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Manufacturing
P. Mouri Sardar Abadi, Abrar H. Baluch, T. A. Sebaey, D. Peeters, M. Barzegar, C. S. Lopes
Summary: This work aims to enhance the flexural behaviour of unidirectional fibre-reinforced laminates by optimizing the interlaminar response through dispersed-ply orientations. A modified Ant Colony Optimization algorithm was utilized to optimize the interlaminar stress profile with the goal of delaying delamination. Experimental tests on traditional laminates and fully dispersed designs showed that flexural resistance cannot be improved, but the laminate's typical brittleness can be transformed into a pseudo-ductile behaviour.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Materials Science, Composites
Farah Hanan, Tabrej Khan, Mohammad Jawaid, Mohamed Thariq Hameed Sultan, Tamer Sebaey, Balbir Singh, Siti Noorbaini Sarmin
Summary: Natural fiber-based materials are widely used as substitutes for synthetic fibers in the composite sector. Experimental study showed that pure kenaf composite has the best complex modulus and thermal stability, making kenaf fibers suitable for aerospace, automotive, and civil engineering applications requiring high dimensional stability and excellent mechanical properties.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Composites
Hassan Alshahrani, Tamer A. Sebaey, Mahmoud M. Awd Allah, Marwa A. Abd El-baky
Summary: The utilization of lightweight construction is crucial for improving fuel efficiency and reducing environmental impact in automobiles, which is achieved through the increasing use of natural fiber composites in the automotive sector. To further reduce weight and cost, basalt fiber can be combined with jute fiber composites without sacrificing rigidity and strength. The mechanical properties of the hybrid J-B/epoxy composite laminates were investigated, demonstrating that the incorporation of basalt fiber improved tensile, bending, shear, and bearing characteristics.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Article
Materials Science, Composites
Hassan Alshahrani, Tamer A. Sebaey, Mahmoud M. Allah, Marwa A. Abd El-baky
Summary: Construction walls are advised to have circular cutouts to meet technical requirements and reduce weight. The size, location, and number of these cutouts should be carefully selected for energy absorption components due to their influence on crashworthiness and failure mechanisms. This research focuses on optimizing process parameters for the crushing performance of perforated thin-walled GFRP square tubes. The results showed that GFRP samples with circular cutouts exhibited certain improvements in initial peak force and total absorbed energy compared to intact samples, while specific absorbed energy and crush force efficiency were significantly higher.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Article
Materials Science, Composites
M. A. Umarfarooq, P. S. Shivakumar Gouda, N. R. Banapurmath, M. I. Kittur, Tabrej Khan, Bisma Parveez, Tamer A. Sebaey, Irfan Anjum Badruddin
Summary: Failure by delamination is a significant concern in laminated composites, as it leads to degradation of stiffness and potential structural failure. Knowledge of delamination resistance and influencing factors is crucial for material selection. This study investigates the effect of fiber hybridization and post-curing on the interlaminar fracture toughness of Glass/Carbon/Epoxy composites. The hybrid GCE laminates exhibit higher fracture toughness, attributed to the synergistic effect of Carbon and Glass fibers. Post-curing at 180 degrees C also improves fracture toughness.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Ahmed R. S. Essa, Mohamed M. Z. Ahmed, Aboud R. K. Aboud, Rakan Alyamani, Tamer A. Sebaey
Summary: The study examines the impact of pin eccentricity on friction stir welding (FSW) of AA5754-H24 using three different eccentricities and six different welding speeds. An artificial neural network (ANN) model is developed to simulate and forecast the influence of eccentricity and welding speed on the mechanical properties of FSW AA5754-H24 joints. The model accurately predicts the mechanical properties of the welded alloy with high reliability.
Article
Polymer Science
Mohammad K. A. Khan, Harri Junaedi, Hassan Alshahrani, Ahmed Wagih, Gilles Lubineau, Tamer A. Sebaey
Summary: This study demonstrated an enhancement in notch sensitivity of a hybrid carbon/epoxy (CFRP) composite with a Kevlar core sandwich compared to monotonic CFRP and Kevlar composites. Open-hole tensile samples with different width to diameter ratios were tested, showing that the hybrid laminate has lower notch sensitivity and a higher specific strength compared to CFRP and KFRP laminates. The enhancement in notch sensitivity was attributed to its progressive damage mode and the lower density of Kevlar fibers in the hybrid composite.
Article
Polymer Science
Tamer Ali Sebeay, Azzam Ahmed
Summary: In this study, glass-fiber-reinforced plastic composite pipes with various fiber angles, wall thicknesses, and lengths were subjected to hydrostatic pressure to analyze their pressure capacity, stress, and deformation. The results showed that composite pipes with a fiber angle of ±55 degrees and larger wall thickness had higher pressure capacity.
Review
Chemistry, Multidisciplinary
Abdulaziz Aldoseri, Khalifa N. N. Al-Khalifa, Abdel Magid Hamouda
Summary: The use of artificial intelligence (AI) is expanding in industries like healthcare, finance, and transportation. However, utilizing data for AI presents challenges such as data quality and privacy concerns. This paper provides a comprehensive review and analysis of these challenges, offering recommendations to address them and harness the power of AI for smarter decision-making and competitive advantage. The paper is expected to be highly valuable to the scientific research community for generating novel ideas on data strategies for AI.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
Tamer A. Sebaey, Harri Junaedi, Hassan Alshahrani, Rakan Alyamani, Khaled Akkad
Summary: During the design process of automotive composite structures, the designer needs to consider both the mechanical characteristics and the sensitivity of the design to environmental factors in order to ensure safety and feasibility. This experimental study focuses on the effect of thermal aging on the crashworthiness of carbon/epoxy composite tubes. The results show that the addition of foam improves load carrying capacity and energy absorption, while the thermal degradation and debonding of the matrix are the main factors in reducing crashworthiness.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Composites
Dalia A. Hegazy, Mahmoud M. Awd Allah, Hassan Alshahrani, Tamer A. Sebaey, Marwa A. Abd El-baky
Summary: Due to their exceptional mechanical properties, lightweight nanocomposites are increasingly being used in aviation, defense, nautical, and automotive applications. This study investigated the crashworthiness of nano-alumina filled glass fiber reinforced epoxy composite tubes. The crushing profiles and crush force-deformation curves were recorded and discussed, and the absorbed energy and specific absorbed energy were evaluated. The addition of 1%, 2%, and 3% nano-alumina increased the absorbed energy and specific absorbed energy, while the addition of 4% resulted in a decrease.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Composites
Mahmoud Awd M. Allah, Dalia A. Hegazy, Hassan Alshahrani, Tamer A. Sebaey, Marwa Abd A. El-baky
Summary: This article explores the energy absorption capability of laterally loaded glass fiber reinforced polymer (GFRP) tubular components filled with montmorillonite clay (MC). GFRP components with different MC weight percentages were created using wet-wrapping by hand lay-up techniques. The crushing load, energy absorption versus displacement responses, and deformation histories of the tubes were analyzed. Regression models were built to predict energy absorption indicators, and complex proportional assessment (COPRAS) was used to determine the optimum MC weight percentage.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Textiles
Muhammad Imran Najeeb, Agusril Syamsir, Siti Madiha Muhammad Amir, Tabrej Khan, Tamer A. Sebaey
Summary: Natural plant fiber-reinforced composite (NFC) is a popular choice for civil building construction materials due to its environmentally-friendly nature and competitive performance. However, there is a lack of comprehensive guidelines and methods to assess composite failure in NFCs. This paper reviews the latest developments in nondestructive testing (NDT) for investigating NFC failures and explores alternative NDT methods and technologies for future research trends. Advanced NDT methodologies and integration with machine learning can help identify and analyze failure modes in NFCs.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Chemistry, Physical
Harri Junaedi, Tabrej Khan, Tamer A. Sebaey
Summary: This study investigates the influence of glass fiber content in rigid polyurethane foam on the mechanical properties of the sandwich structure made of carbon-fiber-reinforced polymer facing sheets. Flexural and compression tests were conducted, and the morphology of the polyurethane composite foams at different contents was observed. The results show that the mechanical properties of the sandwich structure improve with increased milled fiber loading, but then decrease after reaching a maximum at 10 wt.% loading. The density of the foam also increases with higher glass fiber loading.
Article
Mechanics
Seyed Sajad Mirjavadi, Imran Khan, Masoud Forsat, Mohammad Reza Barati, A. M. S. Hamouda
Summary: This research analyzes the nonlinear vibration properties of stiffened toroidal convex/concave shells made of porous metal foam material in an elastic medium. The study considers metal foam as a porous material with uniform and nonuniform models. The governing equations of motion for eccentrically stiffened porous toroidal shell segments are derived using classical shell theory and the smeared stiffeners technique. The Jacobi elliptic functions are used to solve the nonlinear governing equations and obtain exact frequency-amplitude curves. The results demonstrate the significance of porosity distribution, geometric nonlinearity, foundation factors, stiffeners, and curvature radius on the vibration characteristics of porous toroidal convex/concave shells.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
