Article
Construction & Building Technology
Liang Liu, Gui Yang, Jianxin He, Hanlong Liu, Jingwei Gong, Haihua Yang, Wu Yang, Panuwat Joyklad
Summary: Blended fibres are used in ordinary Portland cement-based materials to improve their performance under fire. The addition of calcite powder increased mechanical strength of the materials, but higher temperatures led to significant reductions in strength. Empirical models were established to predict strength properties, with fibre factor and temperature as major affecting variables, showing superior outcomes.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Materials Science, Textiles
Priyalaxmi Swain, Rahul Pal, Dwimayitree Chouhan, Shyama Prasad Mohanty
Summary: The interface between the fiber and polymer matrix is crucial in fiber-reinforced composites. In this study, the jute fiber surface was modified with starch particles to enhance the interaction between the fiber and matrix. The results showed that coating the fiber with starch particles improved the mechanical properties of the composites.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Polymer Science
Siti Nadia Mohd Bakhori, Mohamad Zaki Hassan, Noremylia Mohd Bakhori, Ahmad Rashedi, Roslina Mohammad, Mohd Yusof Md Daud, Sa'ardin Abdul Aziz, Faizir Ramlie, Anil Kumar, J. Naveen
Summary: This study aimed to determine the physical and mechanical properties of pineapple leaf fibre (PALF) and Kevlar reinforced unsaturated polyester (UP) hybrid composites. The results showed that the hybrid composites exhibited superior physical and mechanical properties, including higher tensile strength, modulus, and flexural strength, as well as better impact resistance compared to pure PALF composites. SEM scans revealed a stronger interfacial adhesion between the fibres and matrix in the hybrid composites.
Review
Construction & Building Technology
T. V. Muthukumarana, M. A. V. H. M. Arachchi, H. M. C. C. Somarathna, S. N. Raman
Summary: This paper provides an overview of carbon fiber and its characteristics, application, and properties in carbon fiber-reinforced concrete (CFRC). The variation of selected mechanical properties of CFRC with different fiber dosages compared to conventional concrete, including compressive strength, flexural strength, and splitting tensile strength, is comprehensively analyzed. The limitations of existing literature and areas for future research and development are also discussed.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Civil
Yunsen Hu, Gang Han, Fei Cheng, Xiaozhi Hu
Summary: The study investigates the relationship between the thickness and flexural strengths of laminar carbon fibre reinforced polymer (CFRP) plates through experimental and analytical methods. A simple composite formula is used to link the thickness effect to the ply thickness. Different sample thicknesses are tested, and the flexural strengths are evaluated and modeled using the Strength of Materials (SOM) formula and the simple composite formula. The ASTM standard D7264 is justified analytically, suggesting that a thickness of 4 mm is sufficient for CFRP plates with typical ply thicknesses around 120-130 μm.
THIN-WALLED STRUCTURES
(2023)
Article
Polymer Science
Raphael Olabanji Ogunleye, Sona Rusnakova, Milan Zaludek, Samuel Emebu
Summary: In this study, the effect of ply stacking sequence on the performance of carbon/epoxy laminates under flexural, tensile and impact loading was investigated. The results showed that unidirectional laminates exhibited higher flexural and tensile strength. Symmetric cross-ply laminates had improved flexural and tensile modulus compared to the unsymmetric counterpart. Quasi-isotropic laminates had higher impact resistance than other samples.
Article
Mechanics
M. Masoumi, H. Mansoori, T. Dastan, M. Sheikhzadeh
Summary: This study investigates the effect of intralayer hybridization with basalt fibers on the flexural moduli of triaxially braided carbon/epoxy composite lamina (3AXB). The results show that, under specific conditions, using basalt fibers can reduce the cost of the composite without compromising its flexural performance.
COMPOSITE STRUCTURES
(2022)
Review
Materials Science, Multidisciplinary
M. R. M. Asyraf, M. R. Ishak, Agusril Syamsir, N. M. Nurazzi, F. A. Sabaruddin, S. S. Shazleen, M. N. F. Norrrahim, M. Rafidah, R. A. Ilyas, Mohamad Zakir Abd Rashid, M. R. Razman
Summary: In recent years, the use of natural fibres and biopolymers in many products has gained acceptance due to the serious reduction in petroleum resources and concerns about synthetic plastics. Lignocellulosic fibre polymer biocomposites, particularly those made from oil palm fibres (OPFs), have attracted attention for their wide availability, low carbon emission, and biodegradability. However, the mechanical properties of OPF biocomposites and the factors influencing their performance have not been thoroughly examined.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Polymer Science
Nasmi Herlina Sari, Suteja Suteja, Ahmad Fudholi, Ahmad Zamzuriadi, Emmy Dyah Sulistyowati, Pandri Pandiatmi, Sinarep Sinarep, Ahmad Zainuri
Summary: The research focuses on characterizing the mechanical properties and morphology of polyester/coconut shell powder composites filled with corn husk fibre (CHF). Results show that increasing CHF content leads to higher flexural strength but lower tensile strength of the composite. The enhancement of the interfacial bonding between CHF-CSP-polyester and the reduction of fiber pull-outs contribute to the improved properties.
Article
Polymer Science
Jiayi Wang, Lifeng Chen, Wei Shen, Lvtao Zhu
Summary: As the tensile strength increases, the response speed of midpoint deformation increases, the thread deformation mode changes from overall deformation to partial deformation, and the localized effect increases, accompanied by severe matrix and fiber fracture failure; the thread energy dissipation ratio ascends with increasing pull-off strength and exhibits three distinct stages, i.e., elastic deformation, central fracture, and complete failure, which are directly related to the structural failure mode.
Article
Materials Science, Multidisciplinary
Yu-xin Xiang, Ke Shen, Hao Wu, Zhi-cheng He, Xuan-ke Li
Summary: The CFRP composites prepared by dispersing carbon fiber with different fiber volume ratios in vinyl resin matrix showed excellent transverse isotropic mechanical properties, with the composites containing 25%-30% vol carbon fibers exhibiting the highest tensile and bending strength.
NEW CARBON MATERIALS
(2021)
Article
Polymer Science
Mohd Khairul Rabani Hashim, Mohd Shukry Abdul Majid, Mohd Ridzuan Mohd Jamir, Farizul Hafiz Kasim, Mohamed Thariq Hameed Sultan, Ain Umaira Md Shah, Kamarul Arifin Ahmad, Adi Azriff Basri
Summary: This study investigated the fatigue behavior of pineapple leaf fiber/carbon hybrid laminate composites with different stacking sequences. The results showed that the laminate with specific stacking sequence PCCP_45090 exhibited the highest tensile strength and outstanding fatigue performance. The study also found that the ply orientations significantly influenced the fatigue behavior of the composites.
Article
Materials Science, Textiles
T. Khan, M. T. H. Sultan, A. U. M. Shah, A. H. Ariffin, M. Jawaid
Summary: This study analyzed the effects of stacking sequence of kenaf and jute fibers on hybrid composites, showing that K/J/K composites exhibited higher tensile and flexural properties with better fiber/matrix interfacial bonding compared to J/K/J composites. The layering sequence plays an important role in the mechanical performance of hybrid composites for potential engineering applications like aircraft interiors.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Engineering, Civil
Farzad Boroumand, S. M. Hossein Seyedkashi, M. Hossein Pol
Summary: In this study, the tensile and flexural behavior of metal-nanocomposite laminates under different loading conditions were investigated. The effects of adding different weight percentages of MWCNTs on the mechanical properties of the laminates were evaluated. The results showed that the addition of up to 1 wt% of MWCNTs increased the tensile and flexural strengths, but further addition led to a decrease in strength due to aggregation and agglomeration of MWCNTs.
THIN-WALLED STRUCTURES
(2023)
Article
Acoustics
Mohammadamin Mirdarsoltany, Alireza Rahai, Farzad Hatami
Summary: Research has shown that the energy absorption rate of reinforced concrete beams with basalt-wire hybrid composite bars reached up to 93% in 4-point flexural tests, significantly higher than beams reinforced with traditional steel bars.
SHOCK AND VIBRATION
(2021)
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
Environmental Sciences
T. N. Tuan Rohadi, M. J. M. Ridzuan, M. S. Abdul Majid, M. H. Sulaiman
Summary: The development of eco-friendly packaging materials, such as bioplastics, has been driven by the accumulation of plastic waste and the rapid reduction of fossil reserves. However, most bioplastics are manufactured with nondegradable chemical additives. Therefore, researchers have developed bioplastics from renewable and biodegradable sources by incorporating cellulose, gelatine, and chitosan. This study examines the optical properties, moisture content, swelling behavior, assessment as packaging materials, and biodegradability tests of these bioplastics, indicating that improvements in certain properties can contribute to slower degradation.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Manickaraj Pethuraj, Marimuthu Uthayakumar, Shanmugavel Rajesh, Mohd Shukry Abdul Majid, Sivaprakasam Rajakarunakaran, Magdalena Niemczewska-Wojcik
Summary: This study investigated the influence of hybridisation on the mechanical, tribological, and dry sliding wear behavior of aluminium metal matrix composites. The results showed that the hybridised composites exhibited superior tensile, impact strength, and hardness compared to unreinforced and primary composites. The wear rate of the composites increased with load but decreased with the weight percentage of reinforcement. The friction coefficient decreased as the weight percentage of reinforcement increased due to the uniform distribution of reinforcement on the composites' surface. The main wear mechanism involved abrasive, adhesive, and oxidative wear.
Article
Polymer Science
Chong You Beh, Ee Meng Cheng, Xiao Jian Tan, Nashrul Fazli Mohd Nasir, Mohd Shukry Abdul Majid, Mohd Ridzuan Mohd Jamir, Shing Fhan Khor, Kim Yee Lee, Che Wan Sharifah Robiah Mohamad
Summary: This study investigates the electric responses of hydroxyapatite/starch bone scaffold in relation to hydroxyapatite/starch proportion and microstructural features. Non-porous and porous hydroxyapatite/starch composites with different proportions were fabricated. Microstructural analysis showed significant formation of highly porous hierarchical microstructures at high starch proportion. Complex modulus and complex impedance analysis revealed that the electrical responses of the composites depend on frequency, material proportion, and microstructures. High starch proportion and highly porous hierarchical microstructures enhanced the electrical responses. The electrical parameters of equivalent electrical circuit models indirectly reflected the material proportion and microstructure features.
Article
Green & Sustainable Science & Technology
Muhammad Wafiuddin Abd Rahim, Anas Abdul Rahman, Ayu Abdul-Rahman, Muhammad Izham Ismail, Mohd Shukry Abdul Majid, Nasrul Amri Mohd Amin
Summary: This paper presents a comprehensive statistical analysis on the near-wake region for shallow water application by comparing numerical solutions with published experimental data, aiming to find the most suitable RANS turbulence model to be improved.
INTERNATIONAL JOURNAL OF RENEWABLE ENERGY DEVELOPMENT-IJRED
(2023)
Review
Materials Science, Multidisciplinary
F. Nur Ainin, M. D. Azaman, M. S. Abdul Majid, M. J. M. Ridzuan
Summary: This study provides a comprehensive review of previous and present research on the dynamic responses of 3D-printed sandwich composite structures. It discusses the low-velocity impact and failure mechanisms caused by impact load and energy absorption capabilities. Investigating the processes and mechanics of a material is crucial in addressing structural failure problems, primarily caused by fracture. The study emphasizes ongoing research into the low-velocity behavior of fabricated sandwich composite structures with 3D-printed hexagonal honeycomb cores and varying core materials.
FUNCTIONAL COMPOSITES AND STRUCTURES
(2023)
Article
Thermodynamics
M. A. S. M. Hassan, Z. M. Razlan, S. A. Bakar, A. A. Rahman, M. A. Rojan, W. K. Wan, Z. Ibrahim, A. A. Ishak, M. J. M. Ridzuan
Summary: This study tested a model of an air-cooled underbone motorcycle valve, valve seat, and engine cylinder head to determine their thermal characteristics under actual engine operating conditions at low, medium, and high engine speeds. A three-dimensional model was prepared using the ANSYS software package, and the results showed that as the engine speed increases, so does the thermal load on the engine cylinder head. The research provides valuable information for analyzing the heat characterization of air-cooled engines and can be useful for the automotive industry and other thermal measurement researchers.
APPLIED THERMAL ENGINEERING
(2023)
Article
Polymer Science
M. A. A. Ahmad, M. J. M. Ridzuan, M. S. Abdul Majid, S. M. Sapuan, A. B. Shahriman, Fauziah Mat
Summary: This study investigated the impact of water uptake on graphene nanoplatelets (GNP) and multiwalled carbon nanotube (MWCNT)-impregnated glass fibre-reinforced epoxy composites. The composite was manufactured using hand lay-up and vacuum bagging techniques. The weight content and type of nanofiller were found to affect the composites' water uptake and mechanical properties. The addition of a GNP-MWCNT hybrid mixture increased the composite's tensile and flexural strengths. The GNP-MWCNT-glass hybrid showed a positive synergy effect on water-ageing with self-sensing ability, while the GNP-glass and MWCNT-glass composites showed less positive effects on water ageing sensing behaviour.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Materials Science, Composites
Mohd Khairul Faizi Abdul Rahman, Mohd Shukry Abdul Majid, Shahriman Abu Bakar, Shamsul Bahri Md Tamrin, Haris Ahmad Israr Ahmad, Yee Guan Ng, Zuradzman Mohamad Razlan
Summary: In this study, the energy absorption characteristics of oil palm empty fruit bunch (OPEFB)-reinforced composites were investigated using a low-velocity impact test. Two sets of specimens with different fiber/epoxy fractions (30:70 and 40:60) were analyzed, with one set treated with a 3% NaOH solution. The results showed that the untreated specimens absorbed more energy but suffered severe damage compared to the treated specimens, indicating that the treatment improved the interlocking mechanism and energy dissipation. Additionally, composites with a higher fiber loading exhibited slightly better energy absorption.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2023)
Article
Polymer Science
Muhamad Hasfanizaam Mat Yazik, Mohamed Thariq Hameed Sultan, Mohammad Jawaid, Norkhairunnisa Mazlan, Abd Rahim Abu Talib, Ain Umaira Md Shah, Syafiqah Nur Azrie Safri
Summary: This study investigates the shape memory properties of a shape memory epoxy polymer (SMEP) nanocomposite incorporated with a hybrid of multi-walled carbon nanotube (MWCNT) and montmorillonite nanoclay (MMT). The nanocomposites were characterized through cyclic thermomechanical tests and fold-deploy tests. The inclusion of the hybrid nanofiller resulted in a decrease in shape recovery, except for the SMEP nanocomposite. The recovery through thermal and electrically activated methods showed similar profiles, with electrically activated recovery reacting faster. The effect of nanofiller inclusion was more prominent in the thermal activation method. The hybrid filler SMEP nanocomposite with 3 wt.% MMT and 1.0 wt.% MWCNT exhibited better shape memory properties. These findings provide guidance for selecting nanofiller loadings based on performance for specific applications in industries such as aerospace, medical, and automotive.
Article
Engineering, Mechanical
Muhammad Hazman bin Sharuddin, M. H. Sulaiman, S. Kamaruddin, A. H. Dahnel, N. F. H. Abd Halim, M. J. M. Ridzuan, Ahmad Majdi Abdul-Rani
Summary: SAE-0W20 engine oil was mixed with graphene and fullerene nanoparticles to investigate their effects on the thermal, rheological, and tribological properties of the oil. The results showed that graphene nanoparticles significantly improved the tribological performance of the engine oil.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2023)
Article
Materials Science, Composites
Mani Pradeep, Shangumavel Rajesh, Marimuthu Uthayakumar, Chandrasekar Mathalai Sundaram, Kinga Korniejenko, Krzysztof Miernik, Mohd Shukry Abdul Majid
Summary: Micromachining is crucial in manufacturing for the production of microcomponents with high sensitivity and precision for medical applications. Bio-machining using microorganisms as an energy source offers advantages such as low energy consumption, low cost, no heat-affected zone, and precise dimensional tolerances, making it suitable for machining implant materials. Traditional machining processes face challenges related to heat-affected zone, dimensional tolerances, and environmental issues, which can be overcome by bio-machining.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Review
Engineering, Mechanical
B. Bilvatej, J. Naveen, N. Karthikeyan, M. N. F. Norrrahim, Victor Feizal Knight, M. Jawaid, M. T. H. Sultan, Mallikarjuna Reddy Dagalahal, M. Chandrasekar, Tamil Moli Loganathan
Summary: The use of asbestos in brake pads is being eliminated due to its carcinogenic effect. The development of brake pads based on natural fibers/fillers as alternatives have shown excellent performance compared to asbestos. This research investigates different brake pad compositions and manufacturing techniques, analyzing the impact of common binders on mechanical, tribological, and thermal performance. The study also delves into the performance of metal matrix-based brake pads.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2023)
Review
Chemistry, Analytical
Navaneetha Krishna Chandran, Mohammed Thariq Hameed Sultan, Andrzej Lukaszewicz, Farah Syazwani Shahar, Andriy Holovatyy, Wojciech Giernacki
Summary: The usage of unmanned aerial vehicles (UAVs) is rapidly increasing worldwide due to their efficiency and reduced workload in various industries. However, to ensure the safe operation of UAVs, proper anti-collision systems are essential. This article provides a comprehensive overview of anti-collision technologies for UAVs, including obstacle detection, collision prediction, and collision avoidance methods.
