Results 131 to 140 of about 54,858 (313)

A new cohesive model for simulating delamination propagation in composite laminates under transverse loads

, 2008
In this paper, we propose a new cohesive model to stably and accurately simulate the\ud delamination propagations in composite laminates under quasi-static and low-velocity\ud impact transverse loads using comparatively coarse meshes.
Yan, C, Okabe, T., Elmarakbi, Ahmed, Zemba, Y, Elmarakbi, A. M., Yan, Chunli, Okabe, T, Zemba, Y., Yan, Cheng, Hu, Ning, Hu, Ning, Fukunaga, Hisao   +11 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Research on cross-interface behaviors of tension fractures at coal-rock interface

Meitan xuebao
In order to deeply understand the complex fracture propagation mechanisms and control mechanism in the interface of coal-rock under tension，Brazilian tests were performed on coal-rock specimens in various approximation angle with respect to the loading ...
Xianzhong LI, Shigang HAO, Shuai HENG, Zhenhua LI, Tao WU, Feng DU   +5 more
doaj   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

Fracture cross-layer propagation patterns and stimulation effectiveness evaluation in thin interbedded reservoir models

Petroleum
Offshore thin interbedded reservoirs are characterized by frequent alternation of sandstone and mudstone, strong vertical heterogeneity, and complex fracture cross-layer propagation mechanisms, which constitute a key challenge constraining efficient ...
Lijun Zhang, Tianwei Sun, Nan Li, Xinwei Xiong, Borui Li, Guodong Zou, Bin Liang, Shuai Liu   +7 more
doaj   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

Research on the influence of rock fracture toughness of layered formations on the hydraulic fracture propagation at the initial stage

Geohazard Mechanics
Deep underground rocks exhibit significant layered heterogeneity due to geological evolution and sedimentation. Rock fracture toughness, as one of the important indicators of hydraulic crack propagation, also exhibits heterogeneous distribution. In order
Kairui Li, Chengzhi Qi, Mingyang Wang, Jie Li, Haoxiang Chen   +4 more
doaj   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Flexible Ag2Se‐Based Thermoelectrics: Fundamentals, Processing, and Device Applications

Advanced Materials, EarlyView.
Ag2Se‐based thermoelectrics are reviewed from fundamental transport mechanisms to flexible device integration. Crystal structure, defect chemistry, and band features are correlated with performance optimization strategies and scalable fabrication routes.
Jie Qin, Yuchen Yang, Huangshui Ma, Yong Du, Min Hong, Qinfei Ke   +5 more
wiley   +1 more source

Fractographic analysis of tensile failures of aerospace grade composites

Materials Research, 2012
This paper describes fractographic features observed in aerospace composites failed under tensile loads. Unidirectional Carbon Fibre Reinforced Plastic (UD CFRP) and Unidirectional Glass Fibre Reinforced Plastic (UD GFRP) composite specimens were ...
Masa Suresh Kumar, Kesarabandi Raghavendra, Magalapalaya Anjanappa Venkataswamy, Honnudike Venkateshwararao Ramachandra   +3 more
doaj