Article
Engineering, Aerospace
Alex B. Harman, Lachlan Webb, Paul Chang, Matthew Ibrahim, C. Wright, Katherine Grigoriou, Jim Lua, Kevin Hoos, Daniel Rapking, David Mollenhauer, Nam Phan
Summary: This study proposes a new method for predicting the remaining fatigue life of composite materials after a low-velocity impact, using a combination of discrete damage modeling and continuum damage mechanics. The effectiveness of this method is validated through experimental data.
Article
Chemistry, Multidisciplinary
Radha Rathod, Pralay K. Santra
Summary: This article discusses the role of heterostructures in lead halide perovskites (LHP) in boosting photovoltaic efficiency and stability, as well as the application of variable energy photoelectron spectroscopy (VEPES) in probing the chemical composition variation in these materials and interfaces.
Article
Chemistry, Multidisciplinary
Radha Rathod, Pralay K. Santra
Summary: This article introduces different strategies employed in LHP thin films and nanocrystals to generate heterostructures for improved stability and photovoltaic efficiency, and discusses the application of variable energy photoelectron spectroscopy (VEPES) in probing the chemical composition variation in these materials and interfaces. The internal heterostructures of LHP nanocrystals generated by surface chemistry and post-synthesis anion exchange, as well as the heterostructures induced by the chemical composition of LHP thin films, are discussed in detail.
Review
Chemistry, Analytical
Michael J. Scott, Wim J. C. Verhagen, Marie T. Bieber, Pier Marzocca
Summary: In recent years, the use of sensor technologies and digitalization in aircraft sustainment and operations has enhanced the ability to detect, diagnose, and predict the health of aircraft. Predictive maintenance and related concepts have gained increasing attention in research, but limitations still exist in terms of research methodology definition and the lack of review papers on military applications. This review paper aims to address these gaps by providing a systematic review focused on the operations and sustainment of fixed-wing defence aircraft.
Article
Chemistry, Physical
Thayane C. M. Nepel, Chayene G. Anchieta, Leticia F. Cremasco, Bianca P. Sousa, Andre N. Miranda, Lorrane C. C. B. Oliveira, Bruno A. B. Francisco, Julia P. de O. Julio, Francisco C. B. Maia, Raul O. Freitas, Cristiane B. Rodella, Rubens M. Filho, Gustavo Doubek
Summary: Research on the surface chemistry evolution of metal-air batteries reveals chemical composition changes from nano to micro scale through nano-scale FTIR analysis and in operando micro-FTIR characterization. The study finds that discharge rate does not interfere in chemical composition, while the formation of Li products is atmosphere-dependent.
ADVANCED ENERGY MATERIALS
(2021)
Article
Multidisciplinary Sciences
Agustin Curiel-Regueros, Luca Paolo Ardigo, Alvaro Bustamante-Sanchez, Jose Francisco Tornero-Aguilera, Juan Pedro Fuentes-Garcia, Vicente Javier Clemente-Suarez
Summary: The purpose of this study was to analyze body composition symmetry in upper and lower body segments of aircraft pilots. The results showed that there is a tendency for imbalance in the upper and lower body segments of pilots, which could have detrimental effects on their flight maneuvers. It is recommended to design specific training protocols to improve this imbalance.
Article
Robotics
Songnan Bai, Runze Ding, Pakpong Chirarattananon
Summary: This paper proposes the use of passive variable-sweep wings on a micro airplane to eliminate the need for active control surfaces while retaining effective pitch maneuverability. Through aerodynamic modeling, it is found that this design enhances and accelerates the aircraft's pitch response.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2022)
Review
Engineering, Multidisciplinary
Bin Wang, Zuoqi Zhang, Haobo Pan
Summary: Bone apatite nanocrystals play a critical role in the biological and mechanical functions of bone. Extensive research has been conducted in various disciplines, leading to significant impacts in bioengineering and industrial engineering.
Article
Biochemistry & Molecular Biology
Daniel C. Schultz, Li Pan, Tiffany Wang, Conner Booker, Iram Hyder, Laura Hanold, Garret Rubin, Yousong Ding, Jiayuh Lin, Chenglong Li
Summary: In the past 25 years, efforts have been made to develop small molecule interleukin-6 (IL-6) signaling inhibitors, but none have been approved. This study used a structure-based drug design approach and carbohydrate building blocks to synthesize novel IL-6 signaling inhibitors targeting glycoprotein 130 (gp130). LS-TG-2P and LS-TF-3P were identified as promising lead compounds with preferential activity against the IL-6 signaling pathway. These compounds show potential for further development as IL-6 signaling inhibitors.
Article
Construction & Building Technology
Uthradevi Kannan, Shibil Abdul Gafoor, Sonali Srivastava, M. Nithyadharan, Soujit Sen Gupta, Shihabudheen M. Maliyekkal
Summary: With their high economic benefits, renewable resources are gaining attention as a sustainable alternative to conventional resources. This paper focuses on the use of a composite material made of graphene-oxide and chitosan as a renewable feedstock for producing a sealant for healing micro-cracks in concrete. The sealant, Eco-Nanoseal, shows strong bonding with concrete and has the potential to be an environmentally-friendly alternative to synthetic polymer-based adhesives.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Engineering, Environmental
Mingjin Wang, Nan Zheng, Defeng Zhao, Jing Shang, Tong Zhu
Summary: This study used micro-Raman spectroscopy to measure the chemical composition of individual atmospheric particles in Beijing air, identifying components such as (NH4)2SO4, NH4NO3, minerals, carbonaceous species, and NaNO3, which represent the main components of aerosol particles. The research also found possible reaction pathways of CaCO3 particles in the atmosphere, as well as internal mixtures of soot and inorganic material in 23% of soot-containing particles and organic and inorganic materials in 57% of organics-containing particles. Micro-Raman spectroscopy was shown to be a powerful tool for measuring the chemical composition of individual atmospheric particles with a diameter of >= 1.0 µm.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Rui Li, Xiaoling Cui, Yang Zhao, Xu Feng, Jikun Dong
Summary: The key to gear defect detection lies in accurately separating and extracting weak vibration signals, and a detection method for gear micro-cracks based on tuned resonance was proposed in this study.
Review
Chemistry, Multidisciplinary
Beatriz de Luis, Antoni Llopis-Lorente, Felix Sancenon, Ramon Martinez-Manez
Summary: Chemical communication, using molecules as messengers, facilitates information sharing and cooperation between different entities. Recent advances in nanotechnology and synthetic biology have led to the emergence of chemical communication between micro/nanosystems, opening up new possibilities in various research fields.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Applied
Yanlan Liu, Hongbang Zhang, Cuiping Yi, Ke Quan, Benping Lin
Summary: Water-washed rice bran dietary fiber treated with a combination of enzymes showed higher proportions of cellulose, hemicellulose, and lignin, along with improved water-holding capacity, oil-holding capacity and cholesterol absorption capacity after cellulase modification.
Article
Multidisciplinary Sciences
Kelly L. Robinson, Su Sponaugle, Jessica Y. Luo, Miram R. Gleiber, Robert K. Cowen
Summary: This study investigates the position, size, and density of taxon-specific patches of millions of organisms representing 36 taxa in the continental and oceanic environments of a subtropical western boundary current. The relationship between patch count and background density varies, with organism size explaining a significant portion of the variance in patch length. The predominant length scale of patches is phylogenetically random and predominantly <100 meters for 64% of taxa, indicating potential social and coactive processes in patch formation among diverse plankton species.
Article
Engineering, Mechanical
K. Ali, D. Peng, R. Jones, R. R. K. Singh, X. L. Zhao, A. J. McMillan, F. Berto
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2017)
Article
Engineering, Mechanical
D. Peng, R. Jones, R. R. K. Singh, F. Berto, A. J. McMillan
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2018)
Article
Polymer Science
Md Salim Miah, Mohammad Sayeed Hossain, Muhammad Arif Ashraf, Saphwan Al-Assaf, Alison McMillan
JOURNAL OF APPLIED POLYMER SCIENCE
(2017)
Article
Engineering, Mechanical
D. Peng, R. Jones, K. Cairns, J. Baker, A. McMillan
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2018)
Article
Engineering, Manufacturing
Grzegorz Bechcinski, Heisum Ewad, Vaios Tsiakoumis, Witold Pawlowski, Norbert Kepczak, Alison McMillan, Andre D. L. Batako
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2018)
Article
Mechanics
Alison McMillan, Rhys Jones, Daren Peng, Gregory A. Chechkin
Review
Multidisciplinary Sciences
Henry C. Burridge, Rajesh K. Bhagat, Marc E. J. Stettler, Prashant Kumar, Ishanki De Mel, Panagiotis Demis, Allen Hart, Yyanis Johnson-Llambias, Marco-Felipe King, Oleksiy Klymenko, Alison McMillan, Piotr Morawiecki, Thomas Pennington, Michael Short, David Sykes, Philippe H. Trinh, Stephen K. Wilson, Clint Wong, Hayley Wragg, Megan S. Davies Wykes, Chris Iddon, Andrew W. Woods, Nicola Mingotti, Neeraja Bhamidipati, Huw Woodward, Clive Beggs, Hywel Davies, Shaun Fitzgerald, Christopher Pain, P. F. Linden
Summary: The report examines the knowledge of how COVID-19 spreads indoors, reviews evidence for mitigation measures, and considers the importance of ventilation in winter.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2021)
Review
Green & Sustainable Science & Technology
Chamil Abeykoon, Alison McMillan, Bao Kha Nguyen
Summary: Energy saving and industrial pollution have become important issues, with a focus on identifying and adopting more energy efficient machines and processes. Polymer extrusion is a representative example of polymer processing techniques, with potential for improving energy efficiency and reducing global energy consumption. Studies on energy consumption in extrusion related polymer processing applications provide insights into optimizing energy usage and minimizing losses during processing.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Computer Science, Interdisciplinary Applications
Alison J. McMillan, Rhys Jones
ENGINEERING REPORTS
(2020)
Proceedings Paper
Computer Science, Theory & Methods
Nataliia Luhyna, Peter Excell, Richard J. Day, Alison J. McMillan, Fawad Inam, Ardeshir Osanlou
EMERGING TECHNOLOGIES IN COMPUTING, ICETIC 2018
(2018)
Review
Engineering, Manufacturing
Alison J. McMillan, Norman Swindells, Edward Archer, Alistair McIlhagger, Anna Sung, Kelvin Leong, Rhys Jones
ADVANCED MANUFACTURING-POLYMER & COMPOSITES SCIENCE
(2017)
Proceedings Paper
Instruments & Instrumentation
Dmitriy V. Kornilin, Ilya A. Kudryavtsev, Alison J. McMillan, Ardeshir Osanlou, Ian Ratcliffe
OPTICAL MEASUREMENT SYSTEMS FOR INDUSTRIAL INSPECTION X
(2017)
Article
Mechanics
K. Ali, R. K. Singh Raman, X. L. Zhao, R. Jones, A. J. McMillan
COMPOSITE STRUCTURES
(2017)
Proceedings Paper
Engineering, Aerospace
Dmitrii V. Elenev, Yuri M. Zabolotnov, Alison J. McMillan
THIRD IAA CONFERENCE ON DYNAMICS AND CONTROL OF SPACE SYSTEMS 2017
(2017)
Article
Mechanics
Xiaolong Liu, Kelian Luo, Pengcheng Gao, Tao Cong, Xi Wang, Wenjing Wang
Summary: This paper investigates the formation mechanisms of the zig-zag crack region on the shattered rim of railway wheels. The zig-zag crack region, identified as a typical region for crack propagation in rolling contact fatigue behavior, was observed using scanning electron microscopy and transmission electron microscopy. The formation of the zig-zag morphology is attributed to the periodic deflection of the propagation path relative to the initial propagation plane, caused by the limited plastic deformation zone at the crack tip. Grain refinement and secondary cracks in the zig-zag crack region are a result of the large compressive and shear stresses induced by rolling contact loading.
ENGINEERING FRACTURE MECHANICS
(2024)
Article
Mechanics
Anastasia Iziumova, Aleksei Vshivkov, Ivan Panteleev, Virginia Mubassarova, Oleg Plekhov, Denis Davydov
Summary: The aim of this study was to investigate the correlation between structural, acoustic emission, and thermal characteristics of fatigue crack growth in titanium alloys. Cluster analysis of the acoustic emission signals revealed two different types of signals observed during the fatigue crack development. It was experimentally demonstrated that the stored energy tends to reach an asymptotic value at the final stage of fatigue crack growth and this is correlated with the twinning process intensification in titanium alloy Ti Grade 2. A correlation was assumed between the stages of change in heat flux, the cumulative energy of the first cluster of acoustic emission signals, and the crack length.
ENGINEERING FRACTURE MECHANICS
(2024)
Article
Mechanics
M. Vieira de Carvalho, I. A. Rodrigues Lopes, F. M. Andrade Pires
Summary: This study investigates the numerical challenges of fracture mechanics models within implicit quasi-static frameworks and proposes an instability criterion. The ratio of cohesive to internal power is identified as a crucial factor. Two strategies for handling fracture problems with instabilities are discussed and a comparative assessment is performed. The study also examines more complex material responses, including transformation-induced plasticity effects.
ENGINEERING FRACTURE MECHANICS
(2024)
Article
Mechanics
Thomas Duminy, Aurelien Doitrand, Sylvain Meille
Summary: This study conducted in situ wedge splitting tests on millimeter-size PMMA samples and proposed a method to determine the material tensile strength and critical energy release rate using digital image correlation and a full finite element implementation of the coupled criterion.
ENGINEERING FRACTURE MECHANICS
(2024)
Article
Mechanics
Xin Chang, Xingyi Wang, Chunhe Yang, Yintong Guo, Yanghui Wan
Summary: The influence of cyclic thermal shock and high-temperature acid etching on the Mode I fracture of shale was investigated in this study. It was found that cyclic thermal shock severely degrades the strength and fracture toughness of shale, while high-temperature acid etching treatment improves the fracture toughness. These findings are valuable for optimizing process parameters to reduce initiation pressure in deep shale formations.
ENGINEERING FRACTURE MECHANICS
(2024)
Article
Mechanics
Liaojun Yao, Mingyue Chuai, Zhangming Lyu, Xiangming Chen, Licheng Guo, R. C. Alderliesten
Summary: Methods based on fracture mechanics have been widely used in fatigue delamination growth (FDG) characterization of composite laminates. This study proposes appropriate similitude parameters to represent FDG behavior with different R-ratios.
ENGINEERING FRACTURE MECHANICS
(2024)
Article
Mechanics
Zesheng Zang, Zhonghui Li, Yue Niu, Shan Yin
Summary: This study conducted experiments and recorded signals to investigate the fracture behavior and damage evolution characteristics of coal samples. The results showed that as loading proceeds, the stress, electric potential (EP), and acoustic emission (AE) values increase, and EP and AE signals are excited when stress drops. The fracture behavior of coal samples is altered by flaw inclination, and the destruction mode becomes increasingly complicated. The damage evolution characteristics of coal samples can be evaluated and analyzed by defining the coefficient of variation (CV value) of EP and the b value of AE.
ENGINEERING FRACTURE MECHANICS
(2024)
Article
Mechanics
Clotilde Berdin, Nathalie Prud'homme
Summary: In this study, zirconia layers with different fractions of tetragonal phase and thicknesses were tested for multi-cracking behavior. Cracks perpendicular to the tensile direction were observed, showing a blunting effect into the substrate. The ratio of crack spacing at saturation to layer thickness decreased as the layer thickness increased. Unit cell modeling was used to establish a relationship between crack spacing and layer strength, which fell within the bounds of Hu and Evans model and was found to be insensitive to the tetragonal zirconia fraction.
ENGINEERING FRACTURE MECHANICS
(2024)
Article
Mechanics
Huadong Zhang, Weichen Kong, Y. H. Liu, Yuh J. Chao
Summary: Williams' series expansion crack tip solution in linear elasticity is modified to include a uniform crack face pressure. Practical methods to calculate T-stress from near crack tip stresses are outlined. The analytical results are consistent with numerical results.
ENGINEERING FRACTURE MECHANICS
(2024)
Article
Mechanics
Jiahao Kong, Haoyue Han, Tao Wang, Guangyan Huang, Zhuo Zhuang
Summary: This paper introduces a phase-field model for polymer foam materials by combining the phase-field method with the crushable foam model. The model is calibrated using experimental data and successfully simulates the fracture processes of polyurethane under different loading conditions. The study is important for the engineering applications of polymer foam materials.
ENGINEERING FRACTURE MECHANICS
(2024)
