Article
Engineering, Geological
Xia-Ting Feng, Zhaofeng Wang, Yangyi Zhou, Chengxiang Yang, Peng-Zhi Pan, Rui Kong
Summary: A new model was proposed to characterize the 3D stress-dependent failure behaviors of hard rocks under true triaxial compression, including brittleness, failure process, and anisotropy. The model considers internal variables and different failure processes, and identifies 3D stress dependency through a 3D brittleness index, successfully describing the failure behaviors of hard rocks under 3D stress.
Article
Computer Science, Interdisciplinary Applications
Xiaoying Zhuang, Xinyi Li, Shuwei Zhou
Summary: This study proposes a new 3D phase field model for predicting hydraulic fracture propagation in naturally layered rocks, considering the influence of initial stress field. The research finds that PFM can effectively predict different fracture patterns and guide the application of HF in naturally layered unconventional reservoirs through optimized design.
ENGINEERING WITH COMPUTERS
(2023)
Article
Materials Science, Multidisciplinary
Aofei Mao, Peixun Fan, Loic Constantin, Nan Li, Xi Huang, Bai Cui, Jean-Francois Silvain, Xinwei Wang, Yong Feng Lu
Summary: This study presents an approach to transform 2D patterns into 3D geometries using distributed stress inside a polymer. By introducing controlled stress fields, various shape transformations can be achieved during 2D printing. This method offers a unique way to fabricate complex 3D nanostructures.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Analytical
Mostafa Abdelaziz, Maki Habib
Summary: This paper proposes a three-dimensional electromagnetic actuation system and a closed-loop control algorithm to enhance the trajectory tracking ability of micro/nanorobots. Different simulation experiments were carried out to verify the performance of the algorithm using Simulink. The results showed that the micro/nanorobot can follow the desired trajectory within a maximum error of 13 μm.
Article
Geochemistry & Geophysics
Dongjie Hua, Qinghui Jiang
Summary: This paper introduces a method to extend the hysteresis model of rocks to three-dimensional case by introducing initial closed cracks and redefining the hysteretic behavior. The explicit expression of the strain tensor of a rock under triaxial loading/unloading is obtained through analysis.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Geochemistry & Geophysics
Z. Li, Y. Fujii, J. Kodama, D. Fukuda, A. B. N. Dassanayake, P. Sinkala
Summary: The research group improved a simple 2D and 3D constitutive model for rocks to better simulate the stress-strain curves of real rocks, providing simplified equations and a convex failure criterion.
Article
Materials Science, Multidisciplinary
Jiaxin Jiang, Yifang Liu, Junyu Chen, Xiang Wang, Zhaojie Yu, Wenwang Li, Gaofeng Zheng
Summary: An electric-field-focused electrospinning method was developed for in-situ molding of micro three-dimensional columnar structures. By utilizing a grounded guide tip, a focused electric field was generated to accelerate charge transfer and guide the charged jet into coil structures layer by layer under inner elastic stress. The distance between the nozzle and collector was adjusted to establish a mechanical equilibrium between the electrical field force and the inner stress.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Hong Liu, Fengxiang Lin, Nele Moelans, Liming Peng, Jian-Feng Nie, Irene J. Beyerlein
Summary: In this study, an analytical model is developed to predict the 3D shape and stress field of different-sized ellipsoidal twins in hexagonal close-packed metals. The model considers the effects of anisotropic twin boundary energy, elastic strain energy, and plastic relaxation. It is applied to Mg with a focus on a specific twin type. The results show that the stress field near structural defects facilitates the nucleation of nano-sized twin embryos, and the interplay between elastic strain energy and interfacial energy affects the length and stress distribution of the twin.
Article
Physics, Multidisciplinary
Andrew T. R. Christy, Halim Kusumaatmaja, Mark A. Miller
Summary: The presence of inert crowding agents in a three-dimensional environment can significantly enhance or even introduce superselectivity in client molecule-receptor binding. Molecular crowding initially suppresses binding via an entropic penalty, but clients can then more easily form multiple bonds simultaneously.
PHYSICAL REVIEW LETTERS
(2021)
Article
Computer Science, Information Systems
Zhiyi Gao, Akio Doi, Kenji Sakakibara, Tomonaru Hosokawa, Masahiro Harata
Summary: The study focuses on digitally reproducing a famous coastal rock formation using drone-mounted cameras and global navigation satellite system data in Miyako City, Japan. The resulting 3D digital models are utilized for tourism promotion, environmental protection initiatives, museum exhibitions, school curriculum materials, and related applications.
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
(2021)
Article
Nanoscience & Nanotechnology
Wanqing Meng, Feifan Xu, Zhihao Yu, Tao Tao, Liangwei Shao, Lei Liu, Taotao Li, Kaichuan Wen, Jianpu Wang, Longbing He, Litao Sun, Weisheng Li, Hongkai Ning, Ningxuan Dai, Feng Qin, Xuecou Tu, Danfeng Pan, Shuzhuan He, Dabing Li, Youdou Zheng, Yanqing Lu, Bin Liu, Rong Zhang, Yi Shi, Xinran Wang
Summary: Low-temperature ultraclean integration of large-area MoS2 thin-film transistors with nitride micro-LEDs through a back end of line process enables high-resolution displays with excellent performance and uniformity. This integration shows the potential of MoS2 TFTs in driving micro LEDs to high luminance under low voltage, making them suitable for a range of display applications up to the high resolution and brightness limit.
NATURE NANOTECHNOLOGY
(2021)
Article
Optics
Zhihan Hong, Piaoran Ye, Douglas A. Loy, Rongguang Liang
Summary: A novel 3D printing process for glass micro-optics has been developed in this study, which can convert printed optical elements into transparent inorganic glass at low temperatures with specific performance indicators.
Article
Engineering, Civil
Frederic-Victor Donze, Alexandra Tsopela, Yves Guglielmi, Pierre Henry, Claude Gout
Summary: During fluid injection tests inside the Tournemire fault zone, limited fault displacement was observed, but permeability sharply increased as fluid pressure reached a threshold value. Numerical modeling showed that when fluid pressure outweighed the mechanical contribution of heterogeneities along fracture planes, permeability rapidly increased. These findings are important for understanding fault leakage in non-active fault zones.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Shengxiao Jin, Ling Xia, Yifei Mao, Xiaoyu Chen, Zhuojie Chen, Can Li, Wengang Wu, Jun Xu
Summary: Focused ion beam (FIB) with keV Ga+ can introduce nanoscale localized tensile stress in various materials, which is utilized to assemble 2D nano-film patterns into 3D structures. A strained-bilayer-system model is proposed to describe the bending angle of the patterns. By applying proper stress-introducing strategy, a 3D cubic frame and helices are fabricated using FIB stress induced deformation (FIB-SID) technology. A programmable quasi-parallel FIB fabrication method is developed for efficient and consistent fabrication of 3D nanostructures.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Construction & Building Technology
Qingshu Chen, Pengpeng Ni
Summary: Buried ductile iron (DI) pipelines are crucial for urban water networks, but the sealing performance of joints can be seriously affected by fault offset. Previous studies have used analytical or numerical models and physical experiments to understand this, but a three-dimensional finite element method is needed. In this study, a calibrated numerical model was used to analyze the impact of different parameters, revealing that joint rotation leakage dominates the failure mode. The most unsafe fault-pipe crossing position and the susceptibility of DN 400 pipeline joints to leakage were also determined.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2023)
Editorial Material
Engineering, Multidisciplinary
Zhong-Ke Gao, Michael Small, Reik Donner, Du Meng, Hamed O. Ghaffari
MATHEMATICAL PROBLEMS IN ENGINEERING
(2016)
Article
Multidisciplinary Sciences
H. O. Ghaffari, W. A. Griffth, P. M. Benson, K. Xia, R. P. Young
SCIENTIFIC REPORTS
(2016)
Article
Engineering, Geological
M. H. B. Nasseri, R. P. Young, X. Su, T. S. Nguyen, Z. Li
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2018)
Article
Multidisciplinary Sciences
H. O. Ghaffari, W. A. Griffith, P. M. Benson
SCIENTIFIC REPORTS
(2017)
Article
Geochemistry & Geophysics
W. Ashley Griffith, Rene C. St Julien, Hamed O. Ghaffari, Troy J. Barber
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2018)
Article
Geochemistry & Geophysics
H. O. Ghaffari, W. A. Griffith, T. J. Barber
GEOPHYSICAL JOURNAL INTERNATIONAL
(2019)
Article
Engineering, Geological
Xia-Ting Feng, R. P. Young, J. M. Reyes-Montes, OEmer Aydan, Tsuyoshi Ishida, Jian-Po Liu, Hua-Ji Liu
ROCK MECHANICS AND ROCK ENGINEERING
(2019)
Article
Multidisciplinary Sciences
H. O. Ghaffari, W. A. Griffith, M. Pec
SCIENTIFIC REPORTS
(2019)
Article
Engineering, Geological
Qingsheng Bai, Maria Tibbo, M. H. B. Nasseri, R. Paul Young
ROCK MECHANICS AND ROCK ENGINEERING
(2019)
Article
Engineering, Geological
Qingsheng Bai, R. Paul Young
ROCK MECHANICS AND ROCK ENGINEERING
(2020)
Article
Engineering, Geological
R. P. Young, M. H. B. Nasseri, M. Sehizadeh
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2020)
Article
Instruments & Instrumentation
H. O. Ghaffari, M. Pec
REVIEW OF SCIENTIFIC INSTRUMENTS
(2020)
Proceedings Paper
Geochemistry & Geophysics
J. W. Huang, J. W. Flynn, S. Mustonen, R. P. Young
ROCK DYNAMICS: FROM RESEARCH TO ENGINEERING
(2016)
Article
Engineering, Geological
T. S. Nguyen, Zhenze Li, Grant Su, M. H. B. Nasseri, R. P. Young
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2018)