Results 91 to 100 of about 6,076 (251)

Manufacturing and testing of a cruciform coupon for biaxial transverse tests

, 2022
The present study deals with the manufacturing of cruciform coupons to be tested under tensile biaxial transverse loads. The objective is to obtain a geometry that minimizes the effect of stress concentrations, maximizes the area subjected to biaxial loads and uniforms it, and assures failure occurrence in this area.
Correa Montoto, Elena, Barroso Caro, Alberto, Sánchez-Carmona, Serafín, París Carballo, Federico   +3 more
openaire   +2 more sources

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis

EcoEnergy, EarlyView.
Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley   +1 more source

Aseismic Capability of Beam-to-Column Joint in RC Frame Under Biaxial Loading

Advances in Civil Engineering
The aseismic capability of a beam-to-column connection may be lower under identical bidirectional compared to unidirectional loads. However, earthquake excitations are multidimensional and random, so joints may be simultaneously subjected to different ...
Yanwei Cui, Yuan Man
doaj   +1 more source

Novel PTFE/PI Nanofibrous Composite Membranes Enabling High‐Flux Desalination and Durable Anti‐Scaling in Membrane Distillation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Schematic illustration comparing the MD performance of pure PTFE NFMs and PTFE/PI NFMs. Polytetrafluoroethylene (PTFE) membranes are widely recognized for their low surface energy and strong resistance to salt accumulation in membrane distillation (MD) processes.
Yuan Liu, Guangda Wang, Xiaoying Wei, Xuefeng Zhu, Rujia Zou, Zheyi Meng, Liping Zhu, Meifang Zhu   +7 more
wiley   +1 more source

Strain and Band Modulation of WO3/SnSe Micro‐Nano Composites Achieving Superior Photocatalytic Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
WO3/SnSe micro‐nano composites demonstrate exceptional photocatalytic performance through synergistic strain and band modulation. Lattice strain modulation enhances methyl orange adsorption and visible light absorption, while Z‐scheme band alignment promotes efficient charge separation. The 2.5% WO3/SnSe composite achieves 99.71% degradation efficiency,
Qinyuan Huang, Xiaoyan Ma, Xing Yang, Chongyu Wang, Quan Shan, Chunjian Wang, Fei Wang, Jing Feng, Zhenhua Ge, Lidong Zhao   +9 more
wiley   +1 more source

Linear‐Nonlinear‐Linear Sandwich‐Structured Polymer Composites With Metal‐Organic Framework (MOF)‐Enhanced Insulating Layers and Horizontally Oriented Nanotube‐Filled Polarization Layer for High Energy Storage Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A linear‐nonlinear‐linear (LNL) sandwich dielectric film was rationally designed for high energy storage. Its outer linear layers are MOF (ZIF‐8)‐enhanced PEI composites (EZ), and the middle nonlinear layer is an electrospun‐hot‐pressed P(VDF‐HFP)/TNTs composite (PT) with horizontally oriented TNTs.
Yanpeng Li, Zhichao Yang, Dong Yue, Congcong Zhu, Yunpeng Liu, Lei Zhai, Yu Feng, Xiaoxu Liu   +7 more
wiley   +1 more source

Tuning the Electronic Structure and Photocatalytic Properties in Polar Two‐Dimensional Gallium Oxide Through Interlayer Stacking and Sulfur Doping

Electron, EarlyView.
This work demonstrates that site‐selective sulfur doping effectively narrows the bandgap of polar 2D Ga2O3 monolayer while preserving the built‐in electric field, enabling efficient carrier separation and enhanced visible‐light absorption for photocatalytic water splitting.
Qi Li, Na Lin, Junlei Zhao, Hao Zhao, Bowen Yu, Yufang Xing, Na Zhang, Jian Zhang, Xiufeng Cheng, Zhitai Jia, Xian Zhao   +10 more
wiley   +1 more source

Multiaxial creep deformation investigation of miniature cruciform specimen for type 304 stainless steel at 923 K using non-contact displacement-measuring method

Journal of the Mechanical Behavior of Materials
Multiaxial creep investigations at high temperatures are required to guarantee the integrity of structural materials such as boiler pipes for power generation and turbine blades for aviation and industrial applications.
Hiyoshi Noritake
doaj   +1 more source