Results 101 to 110 of about 5,744 (242)

Mechanical Behaviour of Vacuum‐Infused GFRP Composites at Elevated Temperatures—Influence of Fibre Architecture

Fire and Materials, EarlyView.
ABSTRACT This study addresses the influence of fibre architecture on the mechanical properties of vacuum‐infused glass fibre reinforced polymer (GFRP) composites at elevated temperatures (ET). Laminates with three different fibre configurations—unidirectional (UD), bidirectional 0°/90° cross‐ply (BD), and ±45° off‐axis angle‐ply (OA) – were tested in ...
Eloísa Castilho, João P. Firmo, Mário Garrido, João R. Correia, Afonso Ataíde   +4 more
wiley   +1 more source

Biaxial Hollow Slab Under Seismic Load

Journal of Electrical Systems
In reinforced concrete building structures, the slab is the component with the largest volume of concrete of all the superstructure components. Various innovations were carried out. Currently, the use of Hollow Core Slab (HCS) to reduce the load on building superstructures is widely used in Indonesia.
openaire   +1 more source

Flexible multidimensional sensor for comprehensive human motion monitoring and recognition

FlexMat, EarlyView.
A flexible multidimensional sensor based on orthogonally stacked nanofibrous films enables simultaneous detection of in‐plane strain (X/Y) and out‐of‐plane pressure (Z). The ultrathin device exhibits high sensitivity, wide strain range, and excellent directional selectivity.
Weixia Lan, Xiaofeng Liang, Zhou Fang, Wei Shi, Bin Wei, Yuanyuan Liu, Weidong Zhang, Furong Zhu   +7 more
wiley   +1 more source

Insights Into the Mechanisms Controlling the Residual Strength of Bio‐cemented Sands

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Microbially induced carbonate precipitation (MICP) is an emerging technique for enhancing the mechanical properties of granular soils. Although several experimental studies have reported increased shear strength in MICP‐treated soils at both peak and residual states, other findings have shown reductions in residual strength compared to ...
Aoxi Zhang, Frédéric Collin, Antoine Wautier, Anne‐Catherine Dieudonné   +3 more
wiley   +1 more source

Negative Stiffness Induced and Controlled by Constriction

physica status solidi (b), EarlyView.
Structures with negative stiffness can be stabilized by constriction of external displacement. Furthermore, constriction can make a conventional positive stiffness material exhibit negative stiffness, either bidirectional or unidirectional (shown in the figure).
Elena Pasternak, Arcady V. Dyskin
wiley   +1 more source

Direct evidence for electrostriction‐enhanced piezoelectricity in poly(vinylidene fluoride‐co‐trifluoroethylene) random copolymers

Responsive Materials, EarlyView.
Direct experimental evidence for electrostriction‐enhanced piezoelectricity is obtained for a quenched‐stretched‐annealed‐poled P(VDF‐TrFE) 52/48 mol.% random copolymer using time‐resolved small‐angle X‐ray scattering and wide‐angle X‐ray diffraction. Upon stretching up to 6% strain, the crystallinity (xc) increases 10% at the expense of the contents ...
Zhiwen Zhu, Guanchun Rui, Siyu Wu, Honghu Zhang, Ruipeng Li, Lei Zhu   +5 more
wiley   +1 more source

Liquid‐Phase Fabrication of Janus 2D Materials: Defect‐Rich MoS2 Ultrathin Layers Asymmetrically Decorated with Au Nanoparticles

Small, EarlyView.
This work presents a versatile strategy for asymmetrically decorating MoS2 flakes using SiO2 microspheres as masking templates. The Janus MoS2 exhibits a 1.9‐fold enhancement in photoluminescence (PL) due to the incorporation of Au nanoparticles (NPs), primarily dominated by B exciton emission, which is attributed to defect‐rich structures.
Natalia V. Vassilyeva, Alicia Forment‐Aliaga, Eugenio Coronado   +2 more
wiley   +1 more source

3D SSY Estimate of EPFM Constraint Parameter under Biaxial Loading for Sensor Structure Design. [PDF]

Sensors (Basel), 2019
Ding P, Wang X.
europepmc   +1 more source

Precision Local Strain Engineering in 2D Semiconductors and Their van der Waals Heterostructures

Small, EarlyView.
This review highlights recent advances in experimental techniques for mapping and quantifying strain, strategies for imparting programmable local strain via substrate, stressor, and interlayer coupling, and strain‐engineered functionalities in electronics, photonics, and quantum devices.
Byeong Chan Kim, Yoona Kim, Gwan‐Hyoung Lee   +2 more
wiley   +1 more source

Performance analysis of strengthening reinforced concrete beams under pure torsion using galvanized steel sheets: Experimental and numerical investigation

Structural Concrete, EarlyView.
Abstract Reinforced concrete (RC) beams can be subjected to torsion, and failure due to torsion is brittle and poses a significant risk to occupants. Moreover, strengthening of existing RC beams in torsion may be required due to the upgrade of the structures or as part of structural rehabilitation.
Ahmed Hamoda, Mizan Ahmed, Ahmad G. Saad, Aref A. Abadel, Saad A. Yehia   +4 more
wiley   +1 more source