Results 81 to 90 of about 98,725 (314)

基于应力释放提高齿轮弯曲强度方法的研究

open access: yesJixie chuandong, 2014
Stress concentration of the gear tooth root fillet is an important factor to affect the bending fatigue strength of the gear.In order to improve the bending fatigue strength,the stress relief hole in the tooth surface is established to make root stress ...
赵向飞, 雷前召
doaj  

Effect of the Residual Stress on the Fatigue Strength of a Bolt in Bolt/Nut Assemblies

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
The residual stress at the thread root of a bolt is one of the major factors influencing the fatigue strength. Some hypotheses have been proposed to predict the fatigue strength from the local stress on the thread root.
Akihiro FURUKAWA   +2 more
doaj   +1 more source

Porous Hybrid Soft Actuators From Liquid Crystal Networks and Lyotropic Chromonic Liquid Crystal Templated Hydrogels

open access: yesAdvanced Materials, EarlyView.
The graphic illustrates the design of a hybrid bilayer composed of a liquid crystal hydrogel (LCH) and a liquid crystal network (LCN). The figure highlights the magnetic alignment of the chromonic hydrogel and the thermal‐responsive actuation of the LCN along with the LCH when both layers are aligned or misaligned, enabling programmable, light‐driven ...
Ramón Santiago Herrera Restrepo   +13 more
wiley   +1 more source

Evaluation of rendering fatigue crack harmless using needle peening for hydraulic turbine runner of stainless cast steel SCS6

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In hydraulic turbine runners, accidents due to cyclic loading often occur, which are caused by large defects and residual stress introduced while making welding repairs of a part eroded by cavitation. In this study, we have aimed at improving the fatigue
Yoshiichirou HAYASHI   +2 more
doaj   +1 more source

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

open access: yesAdvanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi   +12 more
wiley   +1 more source

Four-point bending evaluation of dentin-composite interfaces with various stresses [PDF]

open access: yes, 2008
Fracture properties of composite-dentin beams bonded with a self?etching adhesive were tested following short term pretreatments to simulate potential degradation mechanisms (thermal cycling, immersion in 5% NaOCl, or fatigue cycling).
Kim, Paul   +5 more
core  

Computer simulation of fatigue under diametrical compression [PDF]

open access: yes, 2007
We study the fatigue fracture of disordered materials by means of computer simulations of a discrete element model. We extend a two-dimensional fracture model to capture the microscopic mechanisms relevant for fatigue, and we simulate the diametric ...
Andrade Jr., J. S.   +3 more
core   +2 more sources

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

open access: yesAdvanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj   +8 more
wiley   +1 more source

Study on Gear Bending Fatigue Strength Design Based on Reliability Engineering (Reliability Estimation of Bending Fatigue Strength of Supercarburized Steel Gear).

open access: yesJSME international journal. Ser. 3, Vibration, control engineering, engineering for industry, 1992
Gear designing is traditionally based on the factor of safety, and the possibility of failure is quite often arbitrary. Fatigue failure is a random variable for which knowledge of the distribution functions of life and strength is essential in the estimation of bending fatigue failure and in reliability analysis. In this paper, to obtain the basic data
Kazuteru NAGAMURA   +3 more
openaire   +2 more sources

3D‐Printed Arch‐Structured Tribolayer with Conducting Polymer Coating for Enhanced Triboelectric Energy Harvesting

open access: yesAdvanced Materials Interfaces, EarlyView.
PEDOT:PSS‐coated 3DP microstructures are introduced to realize TENGs with enhanced mechanical compliance and high electrical performance. Among the investigated geometries, arch‐shaped microstructures exhibit superior fatigue resistance due to their spring‐like behavior, enabling efficient stress distribution, stable contact evolution, and sustained ...
Mariam E. Alhosani   +9 more
wiley   +1 more source

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