Article
Materials Science, Textiles
Bilal Zahid, Hafsa Jamshaid, Abdul Waqar Rajput, Xiaogang Chen
Summary: This research paper discusses the manufacturing and impact analysis of double fabric layered helmets, as well as the evaluation of energy and blocking forces in different zones of police-head protector shells. Results are compared with previous studies on single piece riot-police-helmet-shells, showing significant differences in impact resistance performance. This suggests potential for the development of riot-police-helmet-shells that can withstand high velocity impacts.
Article
Engineering, Mechanical
Mohammad Nasim, Md. Jahid Hasan, Ugo Galvanetto
Summary: This study uses a computational approach to design new helmets with lattice liners made of PA12 material. The results show that these liners have excellent ability to reduce rotational acceleration and can outperform existing foam liners in terms of single impact protection.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Multidisciplinary
Goram Gohel, Somen K. Bhudolia, Shanmuga Bala Subramanyam Elisetty, Kah Fai Leong, Pierre Gerard
Summary: The study suggests that helmets manufactured using thermoplastic composite materials exhibit better performance in impact tests, with higher ductility and reduced damage compared to traditional carbon fiber/epoxy composites. Due to improved energy absorption and less catastrophic damage, these thermoplastic composite helmets have a greater advantage in protecting human head safety.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Chemistry, Physical
In-Yong Suh, Young -Jun Kim, Pin Zhao, Daniel Sanghyun Cho, Minki Kang, Zheng-Yang Huo, Sang-Woo Kim
Summary: Researchers developed a novel microbial-blocking textile that uses triboelectric charges induced by harvesting kinetic energy from human motion. The textile, which has opposite triboelectric properties of the outer and inner layers, achieves efficient airborne pathogen blocking through electrostatic repulsion. This self-powered textile offers a promising method for rapid blocking of airborne pathogens with low pressure loss.
Review
Biotechnology & Applied Microbiology
Javid Abderezaei, Fargol Rezayaraghi, Brigit Kain, Andrea Menichetti, Mehmet Kurt
Summary: Research and analysis have shown that bicycle helmets with rotation-damping technology, like MIPS, had significantly lower peak rotational acceleration compared to conventional EPS liner helmets. Helmets using WaveCel and Koroyd technology also performed better at low impact velocities. Protective gear with airbag technology, such as Hovding, showed significantly better performance in kinematic-based injury metrics.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Hongxu Wang, Dakshitha Weerasinghe, Paul J. Hazell, Damith Mohotti, Evgeny V. Morozov, Juan P. Escobedo-Diaz
Summary: This study investigates the impact behavior of UHMWPE textile composites under different matrix rigidities. Experimental and numerical methods were used to analyze the mechanical properties. It was found that the composites changed from membrane stretching mode to plate bending mode as the matrix rigidity and thickness increased. The flexible matrix composites had higher perforation resistance but larger deformation compared to the rigid matrix counterparts.
DEFENCE TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Aldair E. Gongora, Kelsey L. Snapp, Richard Pang, Thomas M. Tiano, Kristofer G. Reyes, Emily Whiting, Timothy J. Lawton, Elise F. Morgan, Keith A. Brown
Summary: This research develops a transfer learning approach to predict impact protection using more widely available quasi-static testing, successfully predicting impact performance of different structures and showing that this method can accelerate design for specialty applications.
Article
Materials Science, Multidisciplinary
Bing Liu, Xianghong Xu
Summary: In this study, a new helmet liner was designed by incorporating the unique pyramid-shaped spine configuration of durian shells and bidirectional corrugated configuration of jaw feet of mantis shrimps. Finite element simulation and kinetic behavior analysis revealed that the bidirectional staggered rectangular frustum liner exhibited the highest specific energy absorption, thereby significantly improving the overall energy absorption performance of the helmet.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Textiles
Fatemeh Madani, Saeed Ajeli, Hamid Reza Mirdamadi
Summary: This paper investigates the energy absorption capacity of polymer composites reinforced with Kevlar fibers and different textile structures under high-velocity impact loading. It is found that reinforcing fibers in the thickness direction significantly improve energy absorption.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Chemistry, Multidisciplinary
Shujian Yao, Yanjing Wang, Chengming Sun, Xingmin Feng, Nan Zhao
Summary: A new energy absorption device based on cutting shear rings (CSR) is designed to improve the passive safety of the collision process. It can be installed in a limited space and does not cause splashing of chips during energy absorption. Through a combination of drop hammer testing and numerical simulation, the feasibility of using the finite element method to study the device's characteristics is demonstrated. The device's responses under different working conditions are simulated, and the impact energy absorption characteristics of the shear rings are analyzed. The effects of shear ring thickness and spacing on the device are also investigated.
APPLIED SCIENCES-BASEL
(2023)
Article
Construction & Building Technology
Zin Zin Tun, Anat Ruangrassamee, Qudeer Hussain
Summary: This paper presents an approach for designing fender structures to minimize debris impacts on buildings, focusing on the impact of large debris such as shipping containers. The study utilizes cone-type rubber fenders to resist the impact of shipping containers and analyzes various parameters and energy methods to evaluate building resistance. The results show that buildings with a fender structure can absorb impact energy from loaded shipping containers, while buildings without a fender structure are unable to resist such impacts, highlighting the importance of considering fender yield force in building design.
Article
Materials Science, Textiles
N. Muthu Kumar, G. Thilagavathi, S. Periasamy
Summary: The inner padding layer of a motorcycle helmet plays a crucial role in ensuring comfort and stability. This study explores the use of spacer fabrics as an alternative to foam in the comfort liner to improve breathability and evaporative heat transfer.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Materials Science, Multidisciplinary
Omer Adanur, Faruk Varol
Summary: In recent years, there has been an increase in studies focused on enhancing the energy absorption capabilities of thin-walled structures in vehicles. This study investigates the energy absorption and crushing behaviors of interpenetrating thin-walled structures under axial crushing conditions. The analysis shows that friction force and energy absorption have positive effects on the crashworthiness characteristics of thin-walled structures.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Aerospace
Yiru Ren, Yabin Deng, Hongyong Jiang
Summary: A new lightweight vertical stiffener is proposed to enhance Specific Energy-Absorption behavior of Sandwich Composite Structure; By investigating stiffeners with different thicknesses, numbers, and positions, it is found that stiffeners can significantly improve the energy absorption performance of the composite structure.
CHINESE JOURNAL OF AERONAUTICS
(2021)
Article
Materials Science, Multidisciplinary
Wenhao Wang, He Wang, Hualin Fan
Summary: The research focuses on developing a simple and low-cost manufacturing method for CFRC tubes based on braided tubular textile fabrics, and through crushing experiments, it was found that the new tubular structures have better energy absorption characteristics. By filling with polyurethane foam, the specific energy absorption of single-layer tubes can be significantly enhanced when the shell buckling is solidly restrained.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Textiles
Hafsa Jamshaid, Abdul Waqar Rajput, Bilal Zahid, Norina Asfand, Sikander Abbas Basra, Amer Ali
Article
Materials Science, Textiles
Mohammad Irfan, Bilal Zahid, Sheraz Hussain Sidique, Hafsa Jamshaid, Abdul Waqar Rajput, Aiqin Hou
Summary: The usage of textile composites as lightweight gadgets is increasing day by day. The application range varies from personal protective tools to aerospace vehicle parts. However, every specific application demands specific functionality. Anisotropic nature of textile materials makes it possible to design composites in structural as well as non-structural shapes. This research focuses on the fabrication of single and multilayered textile composites using cotton woven fabric and unsaturated polyester resin. The impact property of the resultant composite was analyzed by varying the degrees of curvature and fabric orientations. The results show that curved specimens have higher strength and increasing the number of layers increases the strength of the composite. The fabric orientation has no significant effect on double and triple layered composites.
JOURNAL OF THE TEXTILE INSTITUTE
(2022)
Article
Materials Science, Textiles
Asad-ur-Rehman Khan, Shamsoon Fareed, Bilal Zahid
Summary: This study investigated the behavior of reinforced concrete beams and columns externally wrapped with carbon fiber reinforced polymers (CFRP) fabrics under static loading. The results showed that the use of CFRP wraps significantly improved the overall performance of beams and columns, as load carrying capacity, ductility and stiffness were higher in specimens wrapped with CFRP compared to those without CFRP wraps.
JOURNAL OF THE TEXTILE INSTITUTE
(2022)
Article
Polymer Science
Hafsa Jamshaid, Rajesh Mishra, Muhammad Zeeshan, Bilal Zahid, Sikandar Abbas Basra, Martin Tichy, Miroslav Muller
Summary: This research focuses on developing knitted hollow composites using recycled cotton fibers and glass fibers, offering environmentally friendly and high-strength packaging material. By adjusting the tube diameter and thickness, the mechanical performance of the composites can be optimized, with glass fiber composites showing higher compression strength and recycled cotton fiber composites exhibiting higher compression modulus.
Article
Engineering, Multidisciplinary
Sheraz Hussain Siddique, Saira Faisal, Bilal Zahid, Chunhong Wang
Summary: Bagasse waste from the sugarcane industry was converted into useful composites in this study, with fibers treated with sodium hydroxide showing improved tensile properties. Hand lay-up technique was used to manufacture bagasse composite samples, with longer fiber length and higher weight percentage resulting in better tensile properties. Bagasse-cotton fabric composites were also produced, demonstrating higher tensile strength and strain, although modulus decreased due to cotton fabric elongation. It was observed that tensile properties decreased with increasing weight percentage, potentially due to incomplete wetting of bagasse fibers during manufacturing. Further investigation on this phenomenon is needed.
MEHRAN UNIVERSITY RESEARCH JOURNAL OF ENGINEERING AND TECHNOLOGY
(2021)
Article
Materials Science, Textiles
Bilal Zahid, Hafsa Jamshaid, Abdul Waqar Rajput, Xiaogang Chen
Summary: This research paper discusses the manufacturing and impact analysis of double fabric layered helmets, as well as the evaluation of energy and blocking forces in different zones of police-head protector shells. Results are compared with previous studies on single piece riot-police-helmet-shells, showing significant differences in impact resistance performance. This suggests potential for the development of riot-police-helmet-shells that can withstand high velocity impacts.
Article
Materials Science, Textiles
Abdul Waqar Rajput, Amer Ali, Bilal Zahid, Hafsa Jamshaid, Sanam Memon, Muhammad Waleed
Summary: The comparative study showed that Siro yarn has better tensile strength and related properties, including higher evenness and fewer imperfections and hairiness.
Article
Materials Science, Textiles
Zulkifli Muhamad, Chik Aiman, Zahid Bilal, Yahya Mohamad
Summary: This study investigated the fabric resistance of three-dimensional woven fiberglass composites generated by impactors of different shapes. The results showed that the four-floating interlocked (4FLL) composite structure demonstrated the strongest damage tolerance, and the ogival shape impactor had better penetration ability compared to the conical and hemispherical shapes.
Article
Polymer Science
Hafsa Jamshaid, Abdul Waqar Rajput, Bilal Zahid, Sanam Memon, Raja Fahad Qureshi, Sarmad Aslam, Muhammad Nadeem
Summary: The study investigated the influence of basalt fabric on the tensile mechanical properties and impact resistance of green epoxy resin. Composites with parallel arrangement of basalt fibers showed better properties compared to those with perpendicular arrangement. The number of fabric layers also affected the properties. The tensile strength and impact resistance of the composites were superior to commercially available side mirror covers due to the excellent properties of basalt fibers.
Article
Materials Science, Textiles
Hafsa Jamshaid, Bilal Zahid, Abdul Waqar Rajput, Sajid Hussain, Uzair Hussain
Summary: This study aims to investigate the properties of upholstery fabric produced from recycled colored fabric clippings, using melange yarns in different ratios. The fabric samples were tested for abrasion resistance, pilling resistance, absorbency and light fastness, all of which were found to be within good ranges, indicating that these fabrics are suitable for use in waiting room upholstery.
FIBRES & TEXTILES IN EASTERN EUROPE
(2021)
Article
Materials Science, Textiles
Hafsa Jamshaid, Abdul Waqar Rajput, Bilal Zahid, Sajid Hussain
Summary: The study demonstrates that different cellulose materials and yarn feeding patterns can significantly impact the comfort, serviceability, and ultraviolet properties of fabric. Wale-wise alternate yarns show better performance in overall moisture management and fabric handle.
FIBRES & TEXTILES IN EASTERN EUROPE
(2021)
Article
Materials Science, Textiles
Sikander Abbas Basra, Abdul Waqar Rajput, Bilal Zahid, Norina Asfand, Zeeshan Azam, Hafsa Jamshaid
Article
Engineering, Multidisciplinary
Kamran Zakaria, Shifa Huma, Bilal Zahid
SIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES-SIGMA MUHENDISLIK VE FEN BILIMLERI DERGISI
(2019)
Article
Materials Science, Textiles
Bilal Zahid, Hafsa Jamshaid, Abdul Waqar Rajput, Mohamad Faizul Yahya, Shakeel Khatri
Article
Materials Science, Textiles
Bilal Zahid, Muhammad Ali, Muhammad Zubair, Kareem Mehmood
