Article
Materials Science, Composites
Sijia Hao, Zheling Li, Cheng Yang, Alexander J. Marsden, Ian A. Kinloch, Robert J. Young
Summary: Bio-inspired nanocomposites were fabricated using GO-based fillers and their interfacial energy dissipation during cyclic deformation was studied. It was found that the presence of functional groups reduced the interfacial energy dissipation in the elastic regime, but increased it with strain. This study provides new insights for the fabrication and evaluation of bio-inspired nanocomposites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yi-zhang Tong, Wan-jing Zhao, Wei Wu, Dong-li Zhang, Guang-jian He, Zhi-tao Yang, Xian-wu Cao
Summary: This paper reports a PVDF nanocomposite with a novel filler design that effectively suppresses dielectric loss and leakage current, while also exhibiting excellent mechanical and thermal conductivity. The study demonstrates that inhibiting the PDA organic layer and the coupling blockade effect of AgNPs can significantly suppress dielectric loss.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yulu Huang, Zhenyu Yang, Zixing Lu
Summary: This paper investigates nanoindentation on graphene/nickel nanocomposites with a three-dimensional brick-and-mortar structure using MD simulation method. Various geometrical variations, including the length of graphene layer, interlayer distance, and lateral gap size, are studied for their effects on mechanical properties. The results show that adding graphene sheets can block dislocation propagation, but increasing lateral gap size can decrease material strength.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Mohan S. R. Elapolu, Alireza Tabarraei
Summary: The study reveals that hydrogenation significantly impacts the strength and fracture toughness of polycrystalline graphene, reducing the strength and critical stress intensity factor along with altering the crack propagation path.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Jiheng Ding, Hongran Zhao, Haibin Yu
Summary: In this study, a bio-inspired multilayered graphene-epoxy composite coating was fabricated using a scalable spraying approach. The composite coating exhibited good dispersity and structure repair capabilities, forming interlock structures to improve coating resistance. It also showed highly anisotropic thermal and electrical conductivities and the ability to self-monitor structural safety and health.
Review
Chemistry, Physical
Jing-Wen DuanMu, Min-Rui Gao
Summary: Electrocatalysis is an effective method for achieving carbon neutrality through efficient energy storage and conversion. Bio-inspired electrocatalysis, which draws inspiration from the unique structure and function of organisms, has emerged as a promising research direction. Recent advances in understanding the mechanism of bio-inspired electrocatalysis have led to the design of various bio-inspired catalysts and catalytic systems, enabling efficient electrocatalytic reactions.
Article
Materials Science, Multidisciplinary
Fuyi Han, Hong Huang, Lifang Liu
Summary: A dual bio-inspired strategy is reported in this study to improve the thermomechanical properties and humidity-responsive behavior of cellulose nanofibril (CNF) papers, by functionalizing CNF with mussel-inspired polydopamine and incorporating graphene oxide (GO) to create nacre-like layered structure.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Chongyang Gao, Bin Zhan, Chenlong Yang
Summary: This paper proposes a static/dynamic micromechanical model for graphene-reinforced polymer nanocomposites, taking into account nanoscale interfaces and random orientations of GNPs, to predict their mechanical behavior effectively. The models are validated with experimental data, providing a theoretical basis for optimal material design of graphene reinforced polymer nanocomposites for better performance in engineering applications.
MECHANICS OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Haobo Dong, Xueying Hu, Ruirui Liu, Mengzheng Ouyang, Hongzhen He, Tianlei Wang, Xuan Gao, Yuhang Dai, Wei Zhang, Yiyang Liu, Yongquan Zhou, Dan J. L. Brett, Ivan P. Parkin, Paul R. Shearing, Guanjie He
Summary: Inspired by biomass seaweed plants, an anionic polyelectrolyte alginate acid (SA) is used to initiate the formation of a high-performance solid electrolyte interphase (SEI) layer on the Zn anode in zinc-ion batteries (ZIBs). The SA-coated Zn anode exhibits stable plating/stripping behavior and low potential difference, resulting in an outstanding average Coulombic efficiency (CE) of 99.8 % over 1,400 cycles in Zn||Cu cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Nanoscience & Nanotechnology
Sheetal Kaushik Bhardwaj, Mubarak Mujawar, Yogendra Kumar Mishra, Nicoleta Hickman, Murthy Chavali, Ajeet Kaushik
Summary: Bio-inspired nanosystems extracted from nature possess unique properties and have wide applications in electronic devices, energy storage, sensors, and medical sciences. Further exploration of the application potential of bio-inspired graphene nanosystems is needed to design and develop more efficient next-generation biomedical systems.
Article
Chemistry, Multidisciplinary
Jayakaran Pachiyappan, Gnanasundaram Nirmala, Selvaraju Sivamani, Rajakumar Govindasamy, Muthu Thiruvengadam, Marina Derkho, Pavel Burkov, Aleksey Popovich, Vera Gribkova
Summary: Algal biomass synthesised nanocomposites show great potential in the removal of dyes, as proven by their high efficiency in removing RhB and MB dyes.
Article
Engineering, Electrical & Electronic
Sherif Elbasuney, M. Yehia, Gharieb S. El-Sayyad
Summary: This study presents a method for achieving intimate mixing between MnO2 NPs and Al NPs through surface modification. Surface modification of Al NPs with PDA was accomplished via in situ polymerization, leading to successful preparation of MnO2/PDA/Al nanocomposite.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Composites
Ning Liu, Shaoheng Li, Xianqian Wang
Summary: This study investigates the effect of interfacial adhesion and polymer phase thickness on the toughness and strength of graphene-polyethylene nanocomposites through molecular dynamics simulations. The results show that the interfacial adhesion and polymer phase thickness significantly influence the properties of the nanocomposites. The findings also emphasize the relationship between strong interfacial adhesion, nanoconfinement effect, and improved stiffness and strength of the polymer glues in the nanocomposites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Jack Maughan, Pedro J. Gouveia, Javier Gutierrez Gonzalez, Liam M. Leahy, Ian Woods, Cian O'Connor, Tara McGuire, James R. Garcia, Donagh G. O'Shea, Sarah F. McComish, Oran D. Kennedy, Maeve A. Caldwell, Adrian Dervan, Jonathan N. Coleman, Fergal J. O'Brien
Summary: This study reports the development of an electroconductive pristine graphene-based (pG) composite material for central nervous system applications, which balances conductivity, biocompatibility, and mechanical performance. The composite material showed no adverse effects on neuronal and glial cell growth, and enhanced neurite outgrowth and cellular morphology compared to controls. The versatility of the composite material was demonstrated through the fabrication of various conductive neural-interfacing structures.
APPLIED MATERIALS TODAY
(2022)
Review
Chemistry, Physical
Maryam Azizi-Lalabadi, Seid Mahdi Jafari
Summary: Graphene and graphene oxide nanocomposites exhibit unique properties suitable for various medical, industrial, and agricultural applications. Different fabrication methods have been explored, with a focus on finding an effective large-scale production method with high quality products. The promising performance of graphene-based bio-nanocomposites in biosensors, drug delivery systems, antimicrobials, electrodes, and energy storage systems has been highlighted.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Raghuram Reddy, Sebastien Groh
COMPUTATIONAL MATERIALS SCIENCE
(2016)
Article
Materials Science, Multidisciplinary
Scott E. Muller, Arun K. Nair
Article
Materials Science, Multidisciplinary
Scott E. Muller, Raghuram R. Santhapuram, Arun K. Nair
COMPUTATIONAL MATERIALS SCIENCE
(2018)
Article
Materials Science, Multidisciplinary
Scott E. Muller, Arun K. Nair
COMPUTATIONAL MATERIALS SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Scott E. Muller, Arun K. Nair
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Raghuram R. Santhapuram, Douglas E. Spearot, Arun K. Nair
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Raghuram R. Santhapuram, Douglas E. Spearot, Arun K. Nair
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Raghuram R. Santhapuram, Colin Phelan, Min Zou, Arun K. Nair
Summary: Experiments have shown that nanoscale surface texture can effectively reduce the coefficient of friction between different surfaces, but the COF of textured surfaces depends on the counter surface radius. Through molecular dynamics simulations, a relationship between surface texture variables and COF can be predicted, suggesting that textured surfaces have lower COF than smooth surfaces under certain conditions, which is verified by experiments on different material surfaces.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Multidisciplinary Sciences
Elton Y. Chen, Cameron P. Hopper, Raghuram R. Santhapuram, Remi Dingreville, Arun K. Nair
Summary: This study investigated the mechanical strength of irradiated Si-based nanocomposites using atomistic modeling, revealing the formation of an emergent amorphous interfacial layer and rapid strength loss with increasing dose. The interaction between radiation-induced point defects and metal-covalent interfaces was also explored, advancing our understanding in this area.
SCIENTIFIC REPORTS
(2021)
Article
Polymer Science
Peiyuan Gao, Scott E. Muller, Jaehun Chun, Lirong Zhong, Zachary C. Kennedy
Summary: This study investigates the relationship between the rheological properties and the structure of a polymer-2D filler system by experiment and simulation methods. The effects of filler size, filler content, surface chemistry, and shear rate on a high-performance polymer (PEKK) with 2D filler (mica) composite are systematically studied. The results show that the interaction between the polymer and 2D filler has two different consequences on tuning the viscosity of the composite.
Article
Materials Science, Multidisciplinary
Raghuram R. Santhapuram, Arun K. Nair
COMPUTATIONAL MATERIALS SCIENCE
(2017)
Article
Mechanics
Rawan Aqel, Patrick Severson, Rani Elhajjar
Summary: A novel core splice joint configuration for composite sandwich structures is studied and proposed to improve the strength and toughness. Experimental and numerical efforts show that this configuration can significantly increase the ultimate strength by 13% to 51% and the toughness by 2% to 35%.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xianheng Wang, Cong Chen, Jinsong Zhang, Xinming Qiu
Summary: In this paper, a new form-finding method based on spatial elastica model (FMSE) is proposed for elastic gridshells. The method integrates the deformations of elastic rods into the overall deformation of the gridshell, and solves a set of transcendental equations using the quasi-Newton method to ensure the deformation satisfies the given boundary conditions. The method is validated through experiments and expected to have potential applications in the investigations of elastic gridshells.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Hao Huang, Zitong Guo, Zhongde Shan, Zheng Sun, Jianhua Liu, Dong Wang, Wang Wang, Jiale Liu, Chenchen Tan
Summary: The conventional evaluation of 3D braided composites' mechanical properties through numerical and experimental methodologies hinders material application due to the expenses, time constraints, and laborious efforts involved. This study establishes a multi-scale finite element model and a surrogate model for predicting the elastic properties of 3D4D rotary braided composites with voids. By optimizing a neural network model, the results are validated and provide valuable insights into the microstructure and properties of these composites.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xinyu Li, Hao Zhang, Haiyang Yang, Junrong Luo, Zhongmin Xiao, Hongshuai Lei
Summary: Due to their excellent mechanical properties and design flexibility, fluted-core composite sandwich structures have gained significant attention in aerospace and rail transit applications. This study investigated the free-vibration characteristics and optimized design of composite fluted-core sandwich cylinders through theoretical models and experimental tests.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Chao Li, Chunzheng Duan, Xiaodong Tian, Chao Wang
Summary: A mechanistic model considering the bottom edge cutting effect and the anisotropic characteristics of the material is proposed in this paper to accurately predict cutting forces. The model was validated through a series of milling experiments and can be used to predict the cutting force of various parts of the cutter and any feed direction.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Camila Sanches Schimidt, Leopoldo Pisanelli Rodrigues de Oliveira, Carlos De Marqui Jr
Summary: This work investigates the vibro-acoustic performance of graded piezoelectric metamaterial plates. The study shows that piezoelectric metamaterial plates with reconfigurable properties can provide enhanced vibration and sound power attenuation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jun Ke, Li-jie Liu, Zhen-yu Wu, Zhong-ping Le, Luo Bao, Dong-wei Luo
Summary: Compared with other green natural fibers, ramie has higher mechanical properties and lower cost. In this study, ramie and glass fiber are made into composite circular tubes. The results show that the hybrid circular tube with ramie and glass fiber has improved torsional mechanical properties and reduced weight and cost. The failure mechanisms are affected by the loading direction and the content of each fiber.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Natalia Pingaro, Gabriele Milani
Summary: This paper proposes an enhanced analytical model for predicting the behavior of FRCM samples tested under standard tensile tests. The model takes into account the interaction between fibers and matrix through the interface, and assumes different material properties at different phases. By solving a second order linear differential equation, an analytical solution can be obtained. The model is validated with experimental data and shows good predictability.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jialiang Fan, Anastasios P. Vassilopoulos, Veronique Michaud
Summary: This article investigates the effects of voids, joint geometry, and test conditions on the fracture performance of thick adhesive Double Cantilever Beam (DCB) joints. It concludes that grooved DCB joints with low void content tested at low displacement rates showed stable crack propagation without significant crack path deviation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Auwalu I. Mohammed, Kaarthikeyan Raghupathy, Osvaldo De Victoria Garcia Baltazar, Lawson Onokpasah, Roger Carvalho, Anders Mogensen, Farzaneh Hassani, James Njuguna
Summary: This study investigates the performance of composite pressure vessels under damaged and undamaged conditions, providing insights into their reliability and residual strength capabilities. The results demonstrate that the damage profile and its effect on compressive strength are similar between damaged and non-damaged cylinders. When subjected to quasi-static compression, the polyethylene liner absorbs enough elastic strain energy to recover without plastic deformation. Additionally, quasi-static compression has little to no influence on the axial strength of the cylinders. The damage characterization reveals fiber breakage, delamination, local buckling, and brooming failure. This study has direct implications for the safety design tolerances, manufacturing strategies, and operational failure conditions of composite overwrapped pressure vessels (COPVs).
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Muhammad Irfan Shirazi, Samir Khatir, Djilali Boutchicha, Magd Abdel Wahab
Summary: Structural health monitoring is important to ensure the safety of components and structures. This study proposes a method using finite element models and 1D-CNN network to extract and classify vibration responses for crack detection. The results show that the proposed approach is effective in real-time damage detection.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Maryam Mirsalehi, Kiarash Kianpour, Sharif Shahbeyk, Mohammad Bakhshi
Summary: This study comprehensively investigates the one-way response of 3D-woven sandwich panels (3DWSPs) and their interfering parameters, providing interpretation of elastic and failure results, failure maps, and reliable theoretical models for linear elastic response and observed failure mechanisms.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Yiming Zhao, Zhonggang Wang, Zhigang Yang, Bin Qin
Summary: The paper proposes a Ritz and statistical energy analysis (Ritz SEA) hybrid method for calculating rectangular plate acoustic vibration coupling in the mid-frequency range. This method combines the fast convergence and ability to handle arbitrary boundary conditions of the Ritz method with the power flow equation of the statistical energy analysis method. The results show that this approach effectively filters out random fluctuations in mid-frequency domains while demonstrating exceptional stability and precision.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Joao Henrique Fonseca, Woojung Jang, Dosuck Han, Naksoo Kim, Hyungyil Lee
Summary: This study addresses the enhancement of an injection-molded fiber-reinforced plastic / metal hybrid automotive structure and its plastic injection molding process through the integration of the finite element method, artificial intelligence, and evolutionary search methods. Experimental validation of finite element models, the generation of a database through orthogonal array and Latin hypercube methods, and the training of artificial neural networks are conducted. The genetic optimization algorithm is then applied to identify optimal process parameters. The results show significant reduction in product warpage and manufacturing time while maintaining structural strength, contributing to the advancement of composite automotive structures with superior quality.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Alessandro Vescovini, Carina Xiaochen Li, Javier Paz Mendez, Bo Cheng Jin, Andrea Manes, Chiara Bisagni
Summary: This paper presents a study on six single-stringer specimens manufactured using the card-sliding technique with non-crimp fabrics and adopting a Double-Double (DD) stacking sequence. The specimens were tested under compression loading conditions to investigate post-buckling and failure in aerospace structures. Experimental results and numerical simulations were compared to analyze the behavior and failure modes of the specimens. The study found promising evidence of a viable solution to optimize aeronautical structures and enhance resistance to skin-stringer separation, particularly with the use of tapered flanges.
COMPOSITE STRUCTURES
(2024)