Article
Materials Science, Composites
Longwen Wu, Ziming Cai, Longtu Li, Xiaohui Wang
Summary: Polymer-ceramic nanocomposites have promising energy-storage capabilities in high power electronics and pulsed power systems. By modulating the particle size distribution, improvements in dielectric response, breakdown strength, and energy density can be achieved, paving the way for enhanced performance in energy storage.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Lukas Englert, Volker Schulze, Stefan Dietrich
Summary: This study aimed to optimize the laser powder bed fusion process by changing the scan path. It reduced the fabrication time but increased the overall porosity. Further research and application of mitigation approaches are necessary.
Article
Engineering, Geological
Sabrina C. Y. Ip, Ronaldo I. Borja
Summary: The mechanical properties of clay rocks evolve with the degree of saturation, leading to changes in stiffness and strength anisotropy. Numerical models that capture the evolving elastic and plastic anisotropy with saturation are required for accurate predictions. The study presents an anisotropy framework for coupled solid deformation-fluid flow in unsaturated elastoplastic media, demonstrating the role of evolving stiffness and strength anisotropy in the mechanical behavior of clay rocks.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2022)
Article
Polymer Science
Yu Xue, Weidong Li, Guihua Yang, Zhaoyun Lin, Letian Qi, Peihua Zhu, Jinghua Yu, Jiachuan Chen
Summary: The physical strength of regenerated cellulose fibers can be improved by adding hydrogen bond donors and acceptors, resulting in a more compact and stronger structure. However, the effect on crystallinity is limited.
Article
Computer Science, Interdisciplinary Applications
Qirui Hu, Zhiwei Lin, Jianzhong Fu
Summary: In this paper, a new method is proposed to model the toolpath linking problem purely as a traveling salesman problem (TSP) and use an efficient TSP solver. The proposed method has been validated for its advantages in reducing the total length of non-productive toolpaths and saving computing time, proving its superiority over the traditional greedy algorithm.
INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING
(2022)
Article
Thermodynamics
Cameron Verwey, Madjid Birouk
Summary: The research aims to investigate the evaporation of suspended fuel droplets at high turbulence intensities. Decane, ethanol, and heptane fuels were tested to discern the effects of turbulence on evaporation rates, with different fuels showing varying responses in turbulent environments.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Engineering, Manufacturing
Sadaival Singh, Ambrish Singh, Sajan Kapil, Manas Das
Summary: Toolpath planning is crucial in Additive Manufacturing (AM). This paper proposes a TSP-based algorithm for efficient and accurate area filling with minimum tool retractions and turns. The digitization process is explored to generate grid points, and a novel method for reducing turns in the toolpath is introduced. The proposed path planning method allows for orientation of the toolpath, favoring one direction of motion over the other.
ADDITIVE MANUFACTURING
(2022)
Article
Automation & Control Systems
Yong Xiao, Zhiren Han, Shuyang Zhou, Zhen Jia
Summary: This study investigates the effects of different parameters on the circumferential distribution of wall thickness on cylindrical cups in synchronous multi-pass spinning, proposing a method of pass design for thickness control. By adjusting the geometry of the roller pass circumferentially and changing the concavity of the pass and the roller-mandrel clearance at different circumferential positions, the thickness distribution can be controlled. Measurements of thickness and strains are conducted to understand material flow, with experiments also comparing synchronous spinning with conventional spinning.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Environmental Sciences
Franziska Srocke, Liwen Han, Pierre Dutilleul, Xianghui Xiao, Donald L. Smith, Ondrej Masek
Summary: In this study, synchrotron X-ray microtomography was used to investigate the internal pore structure of softwood pellet biochar produced by slow pyrolysis, revealing significant alterations in pore structure due to pelleting and pyrolysis. The resulting pore distribution exhibited monofractal scaling behavior and isotropic characteristics.
Article
Physics, Multidisciplinary
Christian Kuechler, Gregory P. Bewley, Eberhard Bodenschatz
Summary: In turbulent flows, kinetic energy is converted to heat by viscosity as it is transferred from large scales to small scales. Kolmogorov conjectured in 1941 that this transfer is dominated by inertial forces at intermediate scales in strong turbulence. Experimental results in a wind tunnel flow suggest universal behavior of decaying turbulence, but do not show power laws even at high Reynolds numbers.
PHYSICAL REVIEW LETTERS
(2023)
Article
Computer Science, Artificial Intelligence
Ning Xu, Yun-Peng Liu, Xin Geng
Summary: Label distribution learning covers a certain number of labels and the process of recovering label distributions can enhance the supervision information in training sets, leading to better learning performance.
IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
(2021)
Article
Construction & Building Technology
Qusai Al-Waked, Jiping Bai, John Kinuthia, Paul Davies
Summary: The utilization of recycled aggregate (RA) is crucial for addressing environmental concerns, but its poor quality limits its use in high-grade civil engineering applications. This research investigated the effects of various enhancement methods on the mechanical properties of recycled aggregate concrete (RAC) and provided a scientific understanding of the performance of RAC in structural applications through microstructure analysis.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Chuan Li, Abdul Malik, Faisal Nazeer, Umer Masood Chaudry, Jianyu Long, Yangwei Wang
Summary: Strength ductility tradeoff and in-plane isotropy under tensile loading are challenges in magnesium alloys. By fabricating a specific alloy and analyzing factors such as grain size, texture, and precipitates, a magnesium alloy with high strength, high elongation, strain hardenability, and excellent in-plane tensile isotropy can be achieved.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Multidisciplinary
Giuseppe Venturini, Niccolo Grossi, Lorenzo Morelli, Antonio Scippa
Summary: The algorithm presented in this work is useful for advanced toolpath definition in milling operations with non-uniform machining allowance. It utilizes a general algorithm for non-uniform offset of polyline curves based on 2D polygons and Boolean union operation. The algorithm is able to handle both internal and external offset and has been proven robust through examples and applications in thin-wall milling.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Manufacturing
Sahil Bharti, Karthik Subramanya Karvaje, Hariharan Krishnaswamy, Anupam Agrawal, S. K. Panigrahi
Summary: Incremental sheet metal forming (ISF) is a versatile process for manufacturing complex sheet metal components. The choice of toolpath strategy has a significant impact on material deformation and geometric accuracy. This study compares conventional toolpaths with feature-based and space-filling fractal tool paths, and finds that the feature-based tool path captures part curvatures more uniformly, while the fractal-based tool paths reduce overall geometric deviation in curved profiles.
INTERNATIONAL JOURNAL OF MATERIAL FORMING
(2023)