Results 81 to 90 of about 16,163 (262)

Experimental and Numerical Study of the Ultimate Flexural Capacity of a Full-Size Damaged Prestressed Concrete Box Girder Strengthened with Bonded Steel Plates. [PDF]

Materials (Basel), 2023
Li Y, Yu Z, Liu Y.
europepmc   +1 more source

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

Advanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang, Xing Yang, Liping Liu, Yang Peng, Yangyang Wang, Hualiang Lv   +5 more
wiley   +1 more source

Predicting Residual Flexural Strength of Corroded Prestressed Concrete Beams: Comparison of Chinese Code, Eurocode and ACI Standard

Buildings
In the present study, 104 sets of flexural tests on corroded prestressed concrete (CPC) beams were gathered from different publications. A flexural strength database for CPC beams was created by incorporating standardized concrete strength and the ...
Hai Li, Zhicheng Pan, Yiming Yang, Xinzhong Wang, Huang Tang, Fanjun Ma, Liangfei Zheng   +6 more
doaj   +1 more source

THE EFFECTS OF FIBERS ON CONCRETE BEAMS FLEXURE AND SHEAR CAPACITIES

, 2022
An experiment program was created to determine the effectiveness of fibers as reinforcement in concrete beams. Premixed concrete was used instead of creating a new mix design. Steel fibers and synthetic macrofibers were used in this experiment. Three tests were conducted on various elements using three different fiber volume fractions of 0.736%, 1.105%,
openaire   +2 more sources

Wood Carbon Sponge/SiO2 Aerogel Composites with Anisotropic Broadband Microwave Absorption, Elastic Resilience, and Thermal Insulation

Advanced Science, EarlyView.
Anisotropic wood carbon sponge/SiO2 aerogel composites are constructed, revealing a robust direction‐dependent permittivity ordering (tangential > radial > axial). The radial direction delivers an ultra‐broadband effective absorption bandwidth of 11.6 GHz at only 4.95 mm, while the tangential direction offers superior compressibility and thermal ...
Shuo Sun, Zhimeng Zhao, Weikai Zhan, Yonggang Jiang, Fengqi Liu, Yijie Hu, Junzong Feng, Jian Feng   +7 more
wiley   +1 more source

Pengaruh Panjang Sambungan Pada Beton Prategang Segmental Bertulangan Limbah Ban

Jurnal Teknik Sipil dan Perencanaan, 2017
Prestressed concrete with reinforcement of waste tires can improve significantly the flexural strength. The problems when applied in the project is difficult to move from the production site to the location of the structure.
Agus Maryoto
doaj  

High‐Performance Bio‐Based Epoxy Vitrimers and Composites: Synergizing Robustness and Reprocessability via Fractional Free Volume Regulation

Advanced Science, EarlyView.
In this work, two bio‐based epoxy monomers were designed to tune the dynamic network of a rigid–flexible hybrid epoxy through free‐volume control, achieving a synergy among high free volume, high cross‐linking density, and segmental mobility while balancing strength and toughness.
Kai Dong, Di Zhao, Chengji Zhao
wiley   +1 more source

A Numerical and Theoretical Investigation of the Flexural Behavior of Steel–Ultra-High-Performance Concrete Composite Slabs

Buildings
The steel–Ultra-High-Performance concrete (UHPC) composite slab is a new type of structure made of steel and UHPC connected by pegs, and its flexural mechanical properties and related design methods need to be further investigated.
Changshui Li, Boyi Zhao, Dawei Hao, Xiaolong Gao, Hao Bian, Xuanzheng Zhang   +5 more
doaj   +1 more source

Beyond‐Classical Ferroelectric Metamaterials: 3D‐Printed Planar Lattices With Programmable Electro–Thermo–Mechanical Coupling

Advanced Science, EarlyView.
Planar ferroelectric lattices with rationally‐tailored topology and polarization achieve programmable piezoelectric and pyroelectric properties. Analytical modeling, homogenization, and experiments collectively demonstrate enhanced and tunable longitudinal, transverse, and shear piezoelectric responses, together with substantially improved ...
Jiahao Shi, Kang Ju, Haoyu Chen, Valerie Orsat, Agus P. Sasmito, Ali Ahmadi, Abdolhamid Akbarzadeh   +6 more
wiley   +1 more source

Ultrathin, Fully Solution‐Processed P(VDF‐TrFE) Piezoelectric Sensor Matrix for Electronic Skin

Advanced Electronic Materials, EarlyView.
An ultrathin, fully solution‐processed 4×$\times$4 piezoelectric sensor array is developed for skinconformal electronicskin applications. The device integrates inkjetprinted polymer electrodes with a 226 nm P(VDFTrFE) active layer on a 4.53 μm$\umu{\rm m}$ Parylene C substrate, enabling extreme flexibility and robust tactile sensing. The array exhibits
Ninja Kajas, Karem Lozano Montero, Leena Ukkonen, Veikko Surakka, Matti Mäntysalo   +4 more
wiley   +1 more source