Results 51 to 60 of about 2,733 (260)

Strength Model for Concrete in Near-Reinforcement Region

Structural Mechanics of Engineering Constructions and Buildings
The relevant problem of concrete strength in the near-reinforcement zone is solved as a problem of volumetric stress-strain state with the “closure” of output integral parameters of this zone on the framework of the whole reinforced concrete element ...
Vladimir I. Kolchunov, Natalia V. Fedorova, Tatiana A. Iliushchenko   +2 more
doaj   +1 more source

Crack propagation in the vicinity of the interface in layered materials [PDF]

Applied and Computational Mechanics, 2009
The paper deals with the problem of crack propagation in the vicinity of the interface in layered materials. Layered materials are often used in practice, primarily because of their better mechanical properties in comparison with the properties of ...
Knésl Z., Hutař P., Náhlík L., Šestáková L.   +3 more
doaj  

Plastic Failure Analysis of Roadway Floor Surrounding Rocks Based on Unified Strength Theory

Advances in Civil Engineering, 2018
Taking the whole surrounding rock of an excavation roadway as the research object, the elastoplastic failure mechanics analysis of the surrounding rock body of the excavated roadway under three-directional in situ stresses is carried out by using the ...
Wenxiang Zheng, Qingwei Bu, Yaoqing Hu
doaj   +1 more source

Digital Microneedles for Multiplexed Transdermal Sensing via Fluorescent QR Codes

Advanced Materials, EarlyView.
Digital fluorescent microneedles encode biochemical information in skin into scannable QR codes through threshold‐activated probes that generate binary on/off signals. By transforming analog fluorescence into discrete digital patterns, this platform enables calibration‐free, multiplexed transdermal sensing of physiologically relevant biomarkers ...
Farbod Abazar, Shahrokh Vahabi, Elena Bellotti, Martina Corsi, Irene Nocera, Paola Orlandi, Guido Bocci, Giuseppe Barillaro   +7 more
wiley   +1 more source

Generalization of Tsytovich strength conditions for soils of anisotropic structure

Қарағанды университетінің хабаршысы. Математика сериясы, 2019
The problem of developing a new generalized strength (plasticity)condition is applied to soils of anisotropic, in particular a transversal - isotropic (trans - structural) structure.
R.B. Baimakhan, A.R. Baimakhan, Z.M. Abdiakhmetova, A.A. Seynasinova, G.M. Baimakhanova   +4 more
doaj   +1 more source

Decoding NASICON and Its Metal Interface for Solid‐State Batteries

Advanced Materials, EarlyView.
This review paper focuses on lithium‐ and sodium‐based NASICON solid electrolytes and their interfaces with metal anodes using a top‐down framework. It begins with NASICON fundamentals, elucidates anode‐induced failure mechanisms, surveys advanced characterization strategies to understand them, summarizes mitigation approaches, and concludes with a ...
Jiaqi Xu, Taiguang Li, Ying Wang, Ruosi Qiao, Quinn Qiao, Yu Chen, Zhou Yu, Chunyi Zhi, Changmin Shi   +8 more
wiley   +1 more source

A GENERALIZATION OF {\RM GO{\L}\c{A}B'S} THEOREM AND APPLICATIONS TO FRACTURE MECHANICS

Mathematical Models and Methods in Applied Sciences, 2002
We study the lower semicontinuity for functionals of the form K → ∫K φ (x, ν)dℋ1 defined on compact sets in ℝ2 with a finite number of connected components and finite ℋ1 measure and apply the result to the study of quasi-static growth of brittle fractures in linearly elastic inhomogeneous and anisotropic bodies.
openaire   +3 more sources

Emergent Freestanding Complex Oxide Membranes for Multifunctional Applications

Advanced Materials, EarlyView.
This review surveys freestanding oxide membranes and covers fabrication and three pathways for studies and devices: strain‐free and strained membranes, and van der Waals‐integrated heterostructures. We show how coupled oxide responses map onto these routes and cross‐couple to expand behaviors.
Baowen Li, Yanran Liu, Jinjin Liu, Josephine Si Yu See, Kaijian Xing, Dong‐Chen Qi, Xiao Renshaw Wang   +6 more
wiley   +1 more source

Decoding High‐voltage LiCoO2: From Degradation to Stabilization Toward Durable Li‐ion Batteries

Advanced Materials, EarlyView.
This review systematically addresses the degradation mechanisms and stabilization strategies for high‐voltage LiCoO2 cathodes. Key enhancement approaches including foreign‐ion doping, surface modifications, structural design, and electrolyte optimization are critically assessed.
Zezhou Lin, Yiran Ying, Huangxu Li, Yanhao Ren, Tiancheng Liu, Peiyu Hou, Haitao Huang   +6 more
wiley   +1 more source

Redefining Separator Design and Water Activity for High‐Energy Zinc Batteries Using Covalent Organic Framework

Advanced Materials, EarlyView.
Device‐level zinc batteries are energy‐limited by the mass/volume of inactive components, while lean‐electrolyte operation triggers interfacial water depletion and unstable kinetics. Here we elucidate lean‐failure mechanisms and develop a COF@PAN functional separator that regulates hydrogen‐bonding networks to manage water activity and accelerate ...
Kun Zhang, Hongtian Liu, Yiwei Zhao, Yijia Yuan, Shibo Xi, Yaohua Zhao, Li Ma, Changan Lu, Shuanglin Wu, Xiaomei Huo, Jia Liu, Keyu Xie, Kian Ping Loh   +12 more
wiley   +1 more source