Results 61 to 70 of about 236,895 (230)

Wearable photovoltaic textiles: From device technologies to long‐term reliability

InfoScience, EarlyView.
Wearable photovoltaic textiles are highlighted as reliable energy sources that combine solar cell efficiency with hierarchical textile‐specific mechanical and environmental durability. Structural and encapsulation strategies, including planarization, neutral‐axis engineering, and advanced barrier designs, enable waterproofing, washability, UV shielding,
Eun Gyo Jeong, So Yeong Jeong, Yongmin Jeon, Myung Sub Lim, Seo‐Yoon Bae, Sung‐Min Lee   +5 more
wiley   +1 more source

Fatigue crack growth rates under variable amplitude load spectra containing tensile underloads [PDF]

, 2003
An extensive research program was performed to investigate the load interaction effect of the combined action of small amplitude high R ratio cycles and large amplitude low R ratio underloads on the crack growth of large cracks.
Zitounis, Vasilios
core   +3 more sources

The Endothelial CXCR Family in Vascular Health and Disease

iNew Medicine, EarlyView.
ABSTRACT Endothelial cells (ECs) form the dynamic interface between blood and tissue, serving as key regulators of vascular homeostasis, inflammation, and repair. Among the molecular systems governing endothelial behavior, the C‐X‐C motif chemokine receptor (CXCR) family—originally characterized in immunology for its roles in leukocyte trafficking and ...
Zhiming Wu, Yandi Wu, Suowen Xu, Yu Huang, Li Wang   +4 more
wiley   +1 more source

A Phase‐Field Model for Quasi‐Dynamic Rupture Nucleation and Propagation of In‐Plane Faults

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Computational modeling of faulting processes is an essential tool for understanding earthquake mechanics but remains challenging due to the structural and material complexities of fault zones. The phase‐field method has recently enabled unified modeling of fault propagation and off‐fault damage within a fracture‐mechanics‐based framework ...
Fan Fei, Md Shumon Mia, Ahmed E. Elbanna, Jinhyun Choo   +3 more
wiley   +1 more source

Architectural Tailoring and Reinforcement Strategies for Improved Bearing Strength in Thick Carbon Fiber/Epoxy Laminates

Polymer Composites, EarlyView.
Schematic overview of the investigated laminate architectures and reinforcement strategies used to evaluate their effects on the bearing performance and failure behaviour of thick carbon fibre/epoxy laminates. ABSTRACT This study provides a unified experimental comparison of 11 joint configurations in thick (7–12 mm) vacuum‐infused CFRP laminates ...
Hasan Caglar, James German, Zain Ali, David Ayre, Marzio Grasso, Andrew Mills, Yigeng Xu, Martin Skote   +7 more
wiley   +1 more source

EFFECT OF WELDING RESIDUAL STRESS ON CRACK PROPAGATION AND FATIGUE PERFORMANCE OF HIGH STRENGTH STEEL SPOT WELDING JOINT

Jixie qiangdu
Due to the high stress concentration of spot welding joints, it is very easy to initiate fatigue cracks at the edge of the nugget, and the residual stress produced by spot welding will affect its propagation.
LUO JiaYuan, LI Xin, TAN Chao
doaj  

Nonlinear dynamics of a rotating shaft with a breathing crack [PDF]

, 2011
In this paper, the effects of a breathing crack on the vibratory characteris- tics of a rotating shaft are investigated. A new, simple and robust model composed of two rigid bars connected with a nonlinear flexural spring is proposed.
Saber El Arem, EL AREM, Saber, NGUYEN, Quoc Son, Quoc Son Nguyen   +3 more
core   +1 more source

Influence of Hybrid Co‐wrapped Yarn Structure on the Energy Absorption and Crack Propagation Resistance of Fiber‐Reinforced Composites

Polymer Composites, EarlyView.
Helical wrapping of polyamide around E‐glass fibres deflects and bridges impact‐driven cracks, arresting damage that would otherwise propagate catastrophically in conventional side‐by‐side hybrid yarns. ABSTRACT Hybrid cowrapped (CW) yarns were engineered to enhance the impact resistance and damage tolerance of fiber‐reinforced composites.
Nereida G. Ortiz‐Leyva, Abdul Jabbar, Prasad Potluri, Muhammad Tausif   +3 more
wiley   +1 more source

Effect of Veil Interlayer Type and Placement on the Mechanical Response of Carbon and Glass Fiber/Epoxy Composites

Polymer Composites, EarlyView.
Veil interlayers of five different chemistries (PI, FG, PPS, PEI, PEEK) were placed at two through‐thickness positions in carbon and glass fiber/epoxy laminates and evaluated under interlaminar shear (ILSS), three‐point bending (3PB) and axial buckling loading. The optimum placement was found to be loading mode dependent: near‐surface placement favored
Yavuz Selim Tarih, Burak Hülagü, Ömer Gündoğdu, Adem Yar   +3 more
wiley   +1 more source

Structural Performance of Hybrid Fiber–Metal Laminates Reinforced With Natural and Synthetic Fibers: Tensile, Dynamic–Mechanical, and Residual Stress Behavior

Polymer Composites, EarlyView.
Hybrid fiber‐metal laminates combining aluminum with carbon, glass, and sisal/epoxy layers. Sisal fibers maintained strength, improved strain and thermal stability, and reduced residual stresses with less synthetic fiber. ABSTRACT This work studied how hybridization between natural and synthetic fibers influences the structural tensile performance ...
Vilson Dalla Libera Junior, Alysson Martins Almeida Silva, Linconl Araujo Teixeira, Marielle da Silva Macedo, Sandra Maria da Luz   +4 more
wiley   +1 more source