Article
Materials Science, Composites
Rajan Jagpal, Evangelos Evangelou, Richard Butler, Evripides G. Loukaides
Summary: This study demonstrates the feasibility and flexibility of the distributed magnetic clamping (DIMAC) method in multiple ply forming strategies, and proposes a method to measure the wrinkling degree. The study also analyzes the impact of ply bending mechanics on the compression folding process.
COMPOSITES COMMUNICATIONS
(2022)
Article
Engineering, Manufacturing
J. V. Viisainen, M. P. F. Sutcliffe
Summary: This study analyzes the variability in the wrinkling behavior of a biaxial non-crimp fabric under different conditions during hemispherical preforming and develops a method to quantify the variability in wrinkle amplitude and location. The results indicate that fabric architecture and forming layup significantly influence wrinkle amplitude and location variability, with location variability being more sensitive to changes in the forming process.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Multidisciplinary
S. Chen, A. M. Joesbury, F. Yu, L. T. Harper, N. A. Warrior
Summary: This study introduces local intra-ply stitch removal to improve the formability of a pillar-stitched biaxial NCF, using an optimization method that selectively removes stitches to minimize local shear angle and total stitch removal area. Experimental results confirm successful elimination of macro-scale wrinkling and demonstrate a global effect on formability when intra-ply stitches are removed according to the optimized pattern.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Manufacturing
J. V. Viisainen, A. Hosseini, M. P. F. Sutcliffe
Summary: This study investigates the effect of component geometry on the wrinkling mechanisms of non-crimp fabrics during preforming, revealing the significant impact of geometry on wrinkle severity and the existence of two possible wrinkling mechanisms. Additionally, the increase in local shear resistance and textile compression are shown to be related to fabric wrinkles.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Mechanics
Ming Mei, Yujia He, Kai Wei, Xujing Yang
Summary: In this study, the preforming characteristics of both single layer and multi-layered NCF hemisphere preforming are systematically investigated through experiments. Strategies such as increasing the weight of the blank holder and optimizing the fabric geometry are applied to mitigate defects. It is found that the macro and meso wrinkles in the single layer fabric preforming are related to positive and negative shear deformation, while the defects are more severe in ply configuration [0 degrees /90 degrees, +/- 45 degrees] compared to [0 degrees /90 degrees]2 in multi-layered fabric preforming. Moreover, the macro wrinkle is more likely to induce defects in the adjacent layer than the meso wrinkle. The weight increase of blank holder strategy effectively mitigates the macro and meso wrinkles by adjusting shear deformation. Additionally, the geometrical optimization of fabric controls the fabric tension in different layers and hemisphere regions, effectively mitigating defects induced by interlayer interaction and shear deformation in multi-layered fabric preforming.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2023)
Article
Engineering, Manufacturing
Hamed Abdoli, Tino Hermann, Simon Bickerton
Summary: Permeability is an important parameter for textile reinforcements, and current measurement methods are destructive. This study introduces a non-destructive measurement concept based on air flow and utilizes a neural network to interpret the data. Limited predictive accuracy has been achieved.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Manufacturing
T. S. Mesogitis, G. M. Maistros, M. Asareh, C. Lira, A. A. Skordos
Summary: The study optimized a dielectric sensor for process monitoring in RTM, validated the technology's feasibility in industrial conditions through simulation and optimization. Increasing wire radius and decreasing coating thickness were found to improve sensor sensitivity, allowing for effective operation at high pressure and temperature.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Chemistry, Multidisciplinary
Nicholas Wright, Piaras Kelly, Oliver Maclaren, Ruanui Nicholson, Suresh Advani
Summary: This article introduces a method to predict race-tracking strength in an RTM process using minimal pressure sensor measurements and position the sensors optimally. The method is proven to accurately predict race-tracking effects with few measurements and reduces uncertainty by optimizing sensor locations.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Manufacturing
J. Lee, M. Duhovic, T. Allen, D. May, P. Kelly
Summary: Transverse impregnation variants of LCM processes, including RTP and CRTM, show fast fill times and the model developed in this study simulates these processes accurately, considering factors like process time, fluid pressure, stress, and fiber volume fraction distribution. Assumptions like quasi-steady flow and uniform through-thickness deformation lead to significant errors in manufacturing process predictions, especially for transverse processes involving direct tool compaction of the fiber preform.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Thermodynamics
Rohit George Sebastian, Christof Obertscheider, Ewald Fauster, Ralf Schledjewski
Summary: This study proposes an energy balance equation for modeling energy interactions in liquid composite molding processes, successfully implemented in OpenFOAM. Simulation results show that the predicted temperatures closely match the experimentally observed temperatures.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Engineering, Aerospace
R. del Cuvillo, J. A. Artero-Guerrero, J. Pernas-Sanchez, J. Lopez-Puente
Summary: Carbon fiber reinforced epoxy laminates are widely used in aeronautical structures. This study investigates the addition of graphene particles to improve the mechanical properties of laminates manufactured using resin transfer moulding. The research demonstrates a 7.6% improvement in compression after impact tests and reveals the influence of graphene on the load-bearing capacity of the laminates through SEM analysis. Additionally, the feasibility of using graphene in an industrial environment is demonstrated by manufacturing an aircraft structure without modifying the existing industrial process.
AEROSPACE SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Somen K. Bhudolia, Goram Gohel, Jayaram Kantipudi, Kah Fai Leong, Pierre Gerard
Summary: Current research investigates the low-velocity impact response of hollow tubular structures manufactured using novel thermoplastic resin and carbon fiber reinforcements. The study found that the new composite material showed advantages in peak load and absorbed energy, with higher damage energy attributes.
MATERIALS & DESIGN
(2021)
Article
Engineering, Manufacturing
B. X. Chai, B. Eisenbart, M. Nikzad, B. Fox, A. Blythe, P. Blanchard, J. Dahl
Summary: In this study, a novel multistage heuristic optimisation framework is proposed to optimise the radial injection configuration for the RTM process. The framework effectively identifies suitable search starting points and rapidly converges to the nearest optimum in the search neighbourhood. The results demonstrate the framework's capability to attain satisfactory outcomes at a significantly reduced computational cost.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Multidisciplinary Sciences
Yifan Wang, Liuchi Li, Douglas Hofmann, Jose E. Andrade, Chiara Daraio
Summary: The study presents a structured fabric with tunable bending modulus made up of three-dimensional particles arranged into layered chain mails. When pressure is applied at their boundaries, the particles interlock and jam the chain mails, resulting in a dramatic increase in bending resistance. This property is due to the high tensile resistance of the interlocking particles, providing potential for lightweight, tunable and adaptive fabrics for various applications.
Article
Engineering, Manufacturing
Byeong-Joo Kim, Jinsik Kim, Sang-Hyup Cha, Yoon-Bo Shim, Changyoon Jeong, Namhun Kim, Young-Bin Park
Summary: A novel sandwich-structured composite was fabricated and characterized, consisting of a 3D printed core and a woven carbon fiber/polyamide-6 facesheet. The use of 3D printing technology, interfacial strengthening techniques, and T-RTM process resulted in synergistic effects on mechanical properties, enhancing compressive properties and impact resistance significantly.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Green & Sustainable Science & Technology
L. Syam Sundar, Yihun Tefera Sintie, Zafar Said, Manoj K. Singh, V. Punnaiah, Antonio C. M. Sousa
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2020)
Article
Thermodynamics
L. Syam Sundar, A. H. Misganaw, Manoj K. Singh, Antonio C. M. Sousa, Hafiz Muhammad Ali
Summary: In this study, the thermal efficiency, convective heat transfer, and friction factor analysis of a flat plate solar collector using water and nanodiamond-cobalt oxide hybrid nanofluids were investigated. The hybrid nanofluids showed enhanced thermal properties, resulting in higher heat transfer coefficient and improved thermal efficiency compared to water. Empirical correlations were developed for Nusselt number and friction factor with hybrid nanofluids within a deviation of +/- 3%.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Geochemistry & Geophysics
G. La Spina, F. Arzilli, E. W. Llewellin, M. R. Burton, A. B. Clarke, M. de'Michielli Vitturi, M. Polacci, M. E. Hartley, D. Di Genova, H. M. Mader
Summary: The study uses a numerical model to investigate the controls on basaltic eruption style, focusing on Kilauea and Etna as case studies. Results suggest that lava fountaining is a distinct style, separate from effusive and explosive eruption styles. High lava fountains occur when the bubbly magma's Reynolds number is greater than approximately 0.1 and the bulk viscosity is less than 10(6) Pas.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geochemistry & Geophysics
Thomas J. Jones, Edward W. Llewellin
Summary: The study found that chaotic exchange flow hinders the thermal-driven localization of fissure eruptions, while flow organization enhances localization. By decreasing magma viscosity or reducing dyke width, it is possible to gradually decrease Gr, pushing a fissure eruption towards a tipping point that results in rapid localization.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Thermodynamics
A. M. Alklaibi, L. Syam Sundar, A. C. M. Sousa
Summary: The experimental results demonstrate that the parameters are strongly influenced by changes in solar irradiation. The highest collector thermal efficiency is achieved by using 1.0 vol% ND/water nanofluid, showing a 12.7% increase compared to pure water. Furthermore, the study reveals that the nanofluid is more sensitive to entropy generation than water as the working fluid.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Geosciences, Multidisciplinary
Fabian B. Wadsworth, Jeremie Vasseur, Edward W. Llewellin, Richard J. Brown, Hugh Tuffen, James E. Gardner, Jackie E. Kendrick, Yan Lavallee, Katherine J. Dobson, Michael J. Heap, Donald B. Dingwell, Kai-Uwe Hess, Jenny Schauroth, Felix W. von Aulock, Alexandra R. L. Kushnir, Federica Marone
Summary: This study investigates the evolution of permeability during welding of volcanic ash and pyroclasts through in-situ experiments and mathematical modeling. Results show that porosity, gas permeability, specific surface area, and pore connectivity decrease as a critical percolation threshold is approached. The model, grounded in percolation theory, is theoretically robust and applicable across all magma compositions for predicting the characteristics of volcanic deposits.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2021)
Article
Geochemistry & Geophysics
B. F. Houghton, C. M. Tisdale, E. W. Llewellin, J. Taddeucci, T. R. Orr, B. H. Walker, M. R. Patrick
Summary: The study analyzed the basaltic explosive eruption of fissure 8 during the 2018 Kilauea eruption in Hawaii through high-definition videos, capturing various parameters such as explosion frequency, ejecta heights, and mass eruption rates. The videos recorded a transition from pulsating outgassing to rapid explosions and then to sustained fountaining, showing an increase in intensity of the eruption. This transition was driven by a combination of small bubbles and melt ascent, along with the rise of gas slugs and pockets, with changes in their contributions influencing the eruptive activity observed.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geochemistry & Geophysics
Nolwenn Le Gall, Fabio Arzilli, Giuseppe La Spina, Margherita Polacci, Biao Cai, Margaret E. Hartley, Nghia T. Vo, Robert C. Atwood, Danilo Di Genova, Sara Nonni, Edward W. Llewellin, Mike R. Burton, Peter D. Lee
Summary: The study investigated the impact of crystallisation kinetics on lava flow behavior by using real-time synchrotron X-ray microtomography to observe the nucleation and growth of clinopyroxene and plagioclase in oxidised, nominally anhydrous basaltic magma. It was found that under continuous cooling, the onset of key transitions in lava hardening occurred within a shorter timeframe, demonstrating the potential of real-time synchrotron X-ray tomography in analyzing the solidification history of basaltic lavas.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Engineering, Civil
Pedro M. Brito, Almerindo D. Ferreira, Antonio C. M. Sousa
Summary: In this study, CFD simulations were used to characterize the complex flow field and pressure distribution around and within Irwin probes at low Reynolds numbers. The results confirmed the original spacing recommendations and suggested a low-Reynolds number threshold below which flow structures are suppressed, reducing interference effects.
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2021)
Article
Multidisciplinary Sciences
Janine Birnbaum, Einat Lev, Ed W. Llewellin
Summary: Three-phase suspensions, consisting of liquid suspending solid particles and gas bubbles, have rheological properties that are not fully constrained, particularly for high suspended fractions. This study aimed to understand the rheology of magma and lava, finding that bubble content and capillary number have a more complex impact on viscosity than existing theories predict. Further research may be needed to fully account for the role of bubbles in stiffening lava flows.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2021)
Article
Multidisciplinary Sciences
Fabian B. Wadsworth, Edward W. Llewellin, Jamie Farquharson, Janina K. Gillies, Ariane Loisel, Leon Frey, Evgenia Ilyinskaya, Thor Thordarson, Samantha Tramontano, Einat Lev, Matthew J. Pankhurst, Alejandro Galdeano Rull, Maria Asensio-Ramos, Nemesio M. Perez, Pedro A. Hernandez, David Calvo, M. Carmen Solana, Ulrich Kueppers, Alejandro Polo Santabarbara
Summary: This study examines the scientific possibilities of crowdsourced observations during volcanic eruptions, using the 2021 Fagradalsfjall (Iceland) and Cumbre Vieja (Canary Islands) events as examples. The unprecedented high-resolution imagery and videos captured by tourists, volcano enthusiasts, and media organizations during these eruptions suggest a new era for observational volcanology, where the abundance of eruption imagery can be utilized for scientific purposes.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Lucy E. Jackson, Fabian B. Wadsworth, Joanne Mitchell, Colin Rennie, Edward W. Llewellin, Kai-Uwe Hess, Donald B. Dingwell
Summary: The Hadamard-Rybczynski equation describes the steady-state buoyant rise velocity of an unconfined spherical bubble in a viscous liquid and has been experimentally validated. Researchers extended this solution for non-isothermal conditions, considering time-dependent liquid viscosity, liquid and gas densities, and bubble radius, and validated it through experiments.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Multidisciplinary Sciences
Fabio Arzilli, Margherita Polacci, Giuseppe La Spina, Nolwenn Le Gall, Edward W. Llewellin, Richard A. Brooker, Rafael Torres-Orozco, Danilo Di Genova, David A. Neave, Margaret E. Hartley, Heidy M. Mader, Daniele Giordano, Robert Atwood, Peter D. Lee, Florian Heidelbach, Mike R. Burton
Summary: Experiments at high temperature and pressure show that rapid dendritic crystallization in hydrous basaltic magmas leads to a rheological transition, controlling magma mobility within the Earth's crust. The findings shed light on the processes that determine whether intrusions lead to eruption or not.
NATURE COMMUNICATIONS
(2022)
Article
Geosciences, Multidisciplinary
Laszlo Olah, Giuseppe Gallo, Gergo Hamar, Osamu Kamoshida, Giovanni Leone, Edward W. W. Llewellin, Domenico Lo Presti, Gabor Nyitrai, Takao Ohminato, Shouhei Ohno, Hiroyuki K. M. Tanaka, Dezso Varga
Summary: Understanding the physical mechanism of ground deformation at a volcano is important for utilizing deformation data as a monitoring tool. A study on Sakurajima volcano showed an inverse correlation between eruption frequency and ground deformation from November 2018 to April 2021. The study used muography to monitor the mass density of magma in the conduit and found that during inflation (low eruption frequency), the mass density increased, while during deflation (high eruption frequency), the mass density decreased. This study suggests that the presence or absence of a dense plug in the conduit plays a crucial role in the observed correlation between eruption frequency and ground deformation.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Green & Sustainable Science & Technology
Kotturu V. V. Chnadra Mouli, L. Syam Sundar, A. M. Alklaibi, Zafar Said, K. V. Sharma, V. Punnaiah, Antonio C. M. Sousa
Summary: This paper experimentally analyzed the thermal efficiency, Nusselt number, exergy efficiency, thermal entropy generation, and frictional entropy generation of natural circulation of water-based multi-walled carbon nanotubes nanofluids flow in a flat plate collector. The results showed that the heat transfer coefficient, Nusselt number, and exergy efficiency increased gradually from 09:00 hr to a maximum value at 13:00 hr and then decreased gradually until the end of the test at 16:30 hr. Regression equations were developed for Nusselt number and friction factor for two time durations. At the peak value of 13:00 hr, the thermal and exergy efficiencies increased significantly compared to water.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Engineering, Manufacturing
Wenwu Zhang, Helezi Zhou, Bin Huang, Huamin Zhou, Xiongqi Peng
Summary: This paper investigates the tool-ply friction behavior of jute/PLA biocomposites in thermoforming. A pull-through friction testing device was developed to characterize the tool-ply friction behavior of jute/PLA prepreg at elevated temperature. The effects of alkali treatment, fiber orientation, normal force, and slipping velocity were studied, and a quantitative definition of tool-ply friction behavior was achieved. The results indicate a strong relationship between tool-ply friction behavior and woven and fiber structures, indicating hydrodynamic lubrication.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Stephen Clay, Wesley Ault, Alex Faupel, Caglar Oskay, Philip Knoth, Noam N. Y. Shemesh, Rami Haj-Ali, Uri Breiman, Ido Meshi, Ofir Shor
Summary: This paper presents an experimental investigation on the compression failure mechanisms of laminated carbon fiber reinforced composites under non-standard quasi-static loading. The results demonstrate the presence of interior kink bands, surface ply splitting, and delaminations, with each failure mechanism associated with different stress levels.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Bowen Zeng, Jinlong Yang, Zhi Ni, Yucheng Fan, Ziyan Hang, Chuang Feng
Summary: This study successfully improved the pyroelectric properties of PVDF films by preparing functionally graded graphene nanoplatelet (FG-GNP) reinforced PVDF composite films. The increase in the number of layers and the concentration of GNP near the surface of the composite film were found to enhance the pyroelectric properties and temperature stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shenghe Zhang, Fukai Chu, Weizhao Hu, Bibo Wang, Richard K. K. Yuen, Yuan Hu
Summary: This study improves the flame retardancy and mechanical properties of PBAT by synthesizing a phosphorus-containing intercalator and mixing it into the PBAT matrix.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Tharan Gordon, Michael R. Wisnom, Byung Chul Kim
Summary: Thickness tapering is a common strategy for efficient and lightweight composite structures, but it can introduce delamination sites. This study investigated the use of ply scarfing method to improve the compressive failure stress of tapered laminates made from thick unidirectional non-crimp fabrics. The results showed that ply scarfing suppressed delamination and increased the failure stress by 60%.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xin Wang, Yiting Qu, Junlei Bai, Fujun Xu, Bin Ding, Xiaohua Zhang
Summary: A solution-based strategy is proposed to achieve a strong bond between fibers and matrix in powder materials, resulting in improved mechanical properties, thermal conductivity, and fracture strain of the composites. The method also offers advantages such as enhanced powder flowability and thermal stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xing Zhou, Guosheng Wang, Dexiang Li, Qi Wang, Keming Zhu, Yaya Hao, Yueyang Xu, Neng Li
Summary: This study successfully synthesized polyurethane elastomer by using degraded products from waste PET, and fabricated composites with carbon nanotubes for strain sensors. The composites showed good mechanical and durability performance, indicating a potential method for recycling waste PET into valuable and functional materials.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Fei Peng, Tingting Shan, Rongrui Chen, Jiulong Shi, Di Liu, Guoqiang Zheng, Chaojun Gao, Kun Dai, Chuntai Liu, Changyu Shen
Summary: Janus polymer films with distinct surface performance and potential applications were successfully prepared by vacuum-assisted hot-compressing method and spray coating. These films exhibit decent actuation performance and rapid selfpowered sensing property, and can be used for real-time acetone monitoring system.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Biao Cheng, Huafeng Quan, Yuefeng Zhang, Dong Huang, Tongqi Li, Chong Ye, Xingming Zhou, Zhen Fan, Yafang Zhang, Ting Ouyang, Fei Han, Hongbo Liu, Jinshui Liu
Summary: In this study, a binary graphite network was constructed to improve the thermal conductivity and control the formation of micrometer-scale open pores in phase change composites. The developed composites showed a high thermal conductivity and phase change enthalpy, making them promising for thermal control in space optical-mechanical systems and other critical aerospace components.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shihao Zuo, Fei Cheng, Guangming Yang, Jiangzhou Li, Yongjun Deng, Guangjun Gou, Xuejun Cui, Yunsen Hu, Xiaozhi Hu
Summary: Micro-arc oxidation (MAO) treatment was used to modify aluminum (Al) alloys in order to improve bond strength with carbon fiber reinforced polymer (CFRP). The treatment successfully created a porous surface with better hardness, roughness, and wetting, and introduced resin pre-coating (RPC) and carbon nanotube (CNT) fiber bridging to improve the bonding interface. The combined treatments significantly increased the bond strength by up to 156.1%, indicating the feasibility of MAO as an alternative method for manufacturing high-performance Al-CFRP composites in industrial production.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
James Kratz, Christophe Paris, Karolina Gaska, Vincent Maes, Ivana Partridge, Philippe Olivier
Summary: Faster heating rates and higher process temperatures can reduce the total process time while achieving the same degree-of-cure. Thermal analysis shows that thermoplastic interleaf particles melt at the recommended curing temperature. A short dwell at a lower temperature can prevent the mixing of thermoplastic particles and thermoset pre-polymer.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Thomas Maierhofer, Evripides G. Loukaides, Craig Carr, Chiara Bisagni, Richard Butler
Summary: Joining thermoset composites via resistance welding provides an efficient method for aerospace structures with benefits such as high-volume manufacturing and simplified surface preparation. The influence of welding parameters on joint performance is assessed using Mode I fracture toughness testing. A Bayesian approach is employed to select high-performance parameters.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Jiangan You, Ling Cai, Ronghua Yu, Haiping Xing, Jian Xue, Ying Li, Zhiwei Jiang, Dongmei Cui, Tao Tang
Summary: In response to the global environmental pollution crisis caused by waste plastics, recyclable design is an effective solution. A CPVC/PUA nanocomposite foam was developed using the plasticizing-foaming-reinforcing strategy, combined with catalytic carbonization. The foam exhibited high expansion ratio, robustness, solvent resistance, flame-triggered shape memory effect, and ablation resistance. The foam could be directly upcycled into functional carbon foam with attractive electromagnetic interference shielding performance.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Siyao Chen, Zhiyu Chen, Yangling Ou, Junwei Lyu, Junning Li, Xiangyang Liu, Yang Liu
Summary: In this study, we demonstrated the significant effect of composite interface on temperature increase in electrical heaters. By selectively fluorinating the outer walls of carbon nanotubes and compositing them with cellulose nanofibers, improved interfacial phonon diffusion was achieved, leading to a higher temperature increase rate.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yanjun He, Agnieszka Suliga, Alex Brinkmeyer, Mark Schenk, Ian Hamerton
Summary: A new thermoset resin system based on a polybenzoxazine blend showed good performance under high ATOX irradiation. It reduced erosion yield by forming a silicon-rich surface layer and improved the mechanical properties of CFRP laminates.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)