Results 41 to 50 of about 1,616 (267)

Evaluation of the Critical Buckling Load Factor in Predesign of Natural-Draft Cooling Towers Considering Finite-Element Discretization Uncertainty and Geometric Imperfections

Buildings
The critical buckling load factor λcr is routinely used as predesign indicator for natural-draft cooling towers, yet its safety meaning is often opaque because imperfection sensitivity and modelling options are embedded implicitly.
Antonio Tomás, Lorena Yepes-Bellver, Joaquín María Barquero   +2 more
doaj   +1 more source

Influence of geometric imperfections on the axially loaded composite conical shells with and without cutout

AIP Advances, 2020
The nonlinear stability analysis of a structure with initial geometric imperfections is very complex, difficult, and unsolved yet in designing. At present, there are no unified design guidelines for imperfection sensitive metal shells (spherical ...
Zhun Li, Yonghui Cao, Guang Pan
doaj   +1 more source

Electrostatic Superlattices Beyond 1:1 Stoichiometry

Advanced Functional Materials, EarlyView.
Polymer‐mediated charge regulation drives two hierarchical routes to higher‐stoichiometry nanoparticle superlattices. Tuning the polymer's molecular weight promotes progressive interstitial filling, transforming ZnS into the fully occupied CaF2${\rm CaF}_2$ lattice. Exchanging polymer assignment between large and small nanoparticles instead breaks CsCl
Binay P. Nayak, Prapti Kakkar, Wesley P. Korba, Honghu Zhang, Wenjie Wang, Surya K. Mallapragada, Alex Travesset, David Vaknin   +7 more
wiley   +1 more source

Overview of FEM-Based Resistance Models for Local Buckling of Welded Steel Box Section Columns

Applied Sciences
The local buckling behavior of welded square box section columns subjected to pure compression is investigated. Local buckling represents a crucial failure mode in thin-walled structures, exerting a significant impact on their overall stability and load ...
Irvin Quillupangui, Balázs Somodi, Balázs Kövesdi   +2 more
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Analysis of Out-Of-Plane Stability of Bow-String Arches

Communications, 2016
Several arch bridge superstructures, designed by the authors of the paper, are presented and analysed. Spatial FEM models were utilised to analyse behaviour of each bridge.
Josef Vican, Jaroslav Odrobinak, Jozef Gocal   +2 more
doaj   +1 more source

Drop‐on‐Demand Printed Negative Dielectric Anisotropy Liquid Crystal Droplets for Adaptive Complex Beam Manipulation and Assessment

Advanced Functional Materials, EarlyView.
Printed negative‐dielectric‐anisotropy liquid‐crystal droplets enable multidimensional full‐vectorial optical‐field sensing across polarization, phase, and wavelength, while also generating tunable skyrmionic‐like complex optical fields. ABSTRACT Adaptive manipulation of vectorial optical fields is important for optical metrology, imaging, and ...
Jinge Guo, Xuke Qiu, Runchen Zhang, Qihao Han, Liangyu Deng, Yishun Lu, Zimo Zhao, Mengmeng Li, Waqas Kamal, Junseok Ma, Yongge Ma, Steve J. Elston, Alfonso A. Castrejón‐Pita, Stephen M. Morris, Chao He   +14 more
wiley   +1 more source

Vertical cylindrical tank with angular geometrical imperfection [PDF]

Journal of Civil Engineering and Management, 2005
In this paper the results of experimental research are given for the stress and strain state of a near seam zone. The research is executed on largeâ€scale model of a zone of vertical cylindrical tank assembly connection with a geometrical imperfection.
Gorochov, Yevgeny, Muschanov, Vladimir, Kulik, Alexander, Tsyplukhin, Alexander   +3 more
openaire   +2 more sources

Current‐Driven Chirality Detection of Magnetic Textures in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Current‐assisted anisotropic magnetoresistance measurements in individual Ni/Au cylindrical nanowires enable detection of vortex chirality near Au segments and selective magnetic reversal in defined wire sections at magnetic fields lower than the propagation field. This approach provides a simple, cost‐effective, and non‐invasive method for probing and
Javier Rial, Alejandro Rivelles, Sofia Caspani, Célia T. Sousa, Rodrigo Guedas, José Luis Prieto, Mariana P. Proença   +6 more
wiley   +1 more source

Stability Bearing Capacity of 6061-T6 Aluminum Alloy Thin-Walled Tubular Members Under Axial Compression Based on the Continuous Strength Method

Buildings
In this study, experimental, numerical, and theoretical approaches were conducted to investigate the stability bearing capacity of the 6061-T6 aluminum alloy thin-walled tubular members under axial compression.
Linna Yin, Haili Shi, Qiujun Ning, Jiawei Lu, Xuesen Li   +4 more
doaj   +1 more source