Results 51 to 60 of about 9,727 (308)

Leaf‐Inspired Eutectic Skin With Extreme Fatigue Resistance and Robust Wet Adhesion for Amphibious Epidermal Electronics

Advanced Materials, EarlyView.
Inspired by Acorus calamus leaves, a heterogeneous eutectic skin integrates an aligned fibrous network within a hydrophobic eutectogel matrix. This hierarchical architecture triggers strain‐induced crystallization to achieve exceptional mechanical toughness and durable wet adhesion.
Jiayu Hou, Jiancheng Dong, Je Hyeong Kim, Chang Zhou, Shiyin Lin, Xingyu Liu, Hao Qiu, Mengting Zheng, Yuduo Zhang, Haijun Zhu, Kangjia Geng, Yidong Peng, Haoran Liu, Yunpeng Huang, Yongsheng Luo, Steve Park, Tianxi Liu   +16 more
wiley   +1 more source

Relation of tangential force and pitting limit at rolling-sliding contact surface under mixed lubrication condition

Nihon Kikai Gakkai ronbunshu, 2015
Design for pitting (surface crack initiated rolling fatigue wear) at rolling-sliding contact surface under mixed lubrication condition is based on the combination of maximum contact pressure (Hertzian stress) and lubrication condition (ratio of surface ...
Susumu MATSUMOTO
doaj   +1 more source

Evaluation of dark etching regions for standard bearing steel under accelerated rolling contact fatigue [PDF]

, 2020
Subsurface microstructural alterations are formed in the later stages of rolling contact fatigue (RCF) under high contact pressure. The subsurface changes observed as a dark contrast under optical microscopy are classified as Dark Etching Regions (DERs).
Zulfiqar A. Khan, Muhammad U. Abdullah, Wolfram Kruhoeffer   +2 more
core   +1 more source

Ultrathin Li Metal Anodes: Quantitative Design Principles and Manufacturability Across Liquid and Solid‐State Batteries

Advanced Materials, EarlyView.
Ultrathin lithium metal anodes (≤15 µm) offer a promising route to high‐energy‐density batteries due to their high capacity and low potential. This review presents design principles for ultrathin Li, evaluates fabrication strategies, and discusses challenges in liquid and solid‐state cells.
Cheng Wang, Caoyu Wang, Shuixin Xia, Jodie A. Yuwono, Mingnan Li, Yanqiu Lyu, Ruizhi Zhang, Jun Wang, Jianfeng Mao, Zaiping Guo   +9 more
wiley   +1 more source

Modeling and Accelerated Tests under Rolling Friction and Mechano-Rolling Fatigue

Механика машин, механизмов и материалов
Modelling principles and methods of laboratory accelerated tests of friction pairs and active systems in rolling and mechano-rolling fatigue are discussed in the paper.
Alexander V. Bogdanovich, Sergey A. Tyurin, Oleg M. Yelovoy   +2 more
doaj   +1 more source

Crack influence and fatigue life assessment in rail profiles: a numerical study

Frontiers in Built Environment, 2023
Rail transportation is a pivotal mode of land transport for its efficiency in transporting passengers and freight across short or long distances; hence, the reliability and safety of rail systems are of key importance.
Patrick Urassa, Patrick Urassa, Haileleoul Sahle Habte, Awel Mohammedseid   +3 more
doaj   +1 more source

A 3D finite element model of rolling contact fatigue for evolved material response and residual stress estimation [PDF]

, 2020
Rolling bearing elements develop structural changes during rolling contact fatigue (RCF) along with the non-proportional stress histories, evolved residual stresses and extensive work hardening. Considerable work has been reported in the past few decades
Muhammad U Abdullah, Toni Blass, Wolfram Kruhoeffer, Zulfiqar A Khan   +3 more
core   +1 more source

Weaving Intelligence: Thermally Drawn Multimaterial Fibers Toward AI‐Enabled Smart Textiles

Advanced Materials, EarlyView.
Thermally drawn multimaterial fibers are rapidly advancing as intelligent structural units for next‐generation smart textiles. Integrating multimaterial architectures with neuromorphic and spiking‐neural‐network principles enables fabrics that can sense, compute, and adapt autonomously.
Vuong Dinh Trung, Jiaxiang Yi, Hieu Nguyen‐Duc, Tien Nu Hoang Lo, Weili Zhao, Chaoqun Dong, Fabien Sorin, Baris Caglar, Lei Wei, Tung Nguyen‐Dang   +9 more
wiley   +1 more source

Rail steel contact fatigue curves

Вестник Научно-исследовательского института железнодорожного транспорта
Introduction. The problem of contact fatigue damage of rails has become especially urgent with the intensified railway freight load. An effective method of studying various damage factors is mathematical simulation of the dynamics of motion and ...
V. I. Sakalo, A. V. Sakalo
doaj   +1 more source

A Unified Polymer Hydrogel Electrolyte Integrating Robust Adhesion, Self‐Healing, and Oxygen Permeability in Flexible Neutral Zn‐Air Batteries

Advanced Materials, EarlyView.
Flexible neutral Zn‐air batteries achieving a remarkable 3000‐cycle lifespan and withstanding 1000 bending cycles are reported. This performance is realized by employing a 3D physically cross‐linked neutral hydrogel electrolyte that integrates high adhesion, self‐healing, O2 permeability, and CO2 tolerance to resolve critical stability challenges ...
Zhenyu Sun, Kaiming Liao, Wei Zhou, Zongping Shao   +3 more
wiley   +1 more source