Results 91 to 100 of about 7,801 (296)

Controlled Pre-Corrosion Attack and Ultrasonic Fatigue Endurance of Titanium Alloy Ti-6Al-4V

open access: yesLatin American Journal of Solids and Structures
Ultrasonic fatigue tests were carried out on titanium alloy Ti-6Al-4V on the base material and the pre-corroded specimen to assess the pre-corrosion effect on the fatigue life of this alloy.
Ishvari F. Zuñiga Tello   +3 more
doaj   +1 more source

The upper limit extension of loading frequency in the rotating bending fatigue test

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Fatigue property in gigacycle regime is focused as an important subject in recent years. In such a long-life region, a tremendous long period is required to perform the fatigue tests. In order to overcome this difficulty, special types of fatigue testing
Taizoh YAMAMOTO   +2 more
doaj   +1 more source

Very high cycle fatigue testing of concrete using ultrasonic cycling

open access: yes, 2017
The ultrasonic fatigue testing method has been further developed to perform cyclic compression tests with concrete. Cylindrical specimens vibrate in resonance at a frequency of approximately 20 kHz with superimposed compressive static loads.
Reinhard Schuller   +5 more
core   +1 more source

Graphene‐Interfaced Stretchable Sweat Patch for Multiplexed Electrochemical Monitoring of IL‐6, Glucose, and Calcium Ions

open access: yesAdvanced Materials Technologies, EarlyView.
Flexible sweat sensor patch integrating graphene‑interfaced gold microelectrodes functionalized with bio‑receptors and ion‑selective membrane, coupled with a capillary‑driven microfluidic layer and portable potentiostat electronics for multiplexed monitoring of inflammatory, metabolic, and electrolyte biomarkers in microliter sweat volumes.
Roomia Memon   +4 more
wiley   +1 more source

VHCF Properties of A7075-T651 Al Alloy Depending on Shot Peening and Fatigue Testing Methods

open access: yesAdvances in Mechanical Engineering, 2015
Fatigue characteristics of A7075-T651 aluminum material were studied with surface treatment of shot peening. The fatigue life was characterized by two fatigue testing methods, ultrasonic fatigue test (UFT, 20 kHz) and the rotary-bending fatigue test (RFT,
Min-Soo Suh   +3 more
doaj   +1 more source

Variable Amplitude Testing of 2024-T351 Aluminum Alloy Using Ultrasonic and Servo-hydraulic Fatigue Testing Equipment

open access: yes, 2015
Ultrasonic fatigue testing allows time saving investigations up to the very high cycle fatigue regime. The high frequency and adapted testing method may influence measured fatigue properties. Servo-hydraulic and ultrasonic test data of 2024-T351 aluminum
Mayer, H., Fitzka, M.
core   +1 more source

Self‐Soldering, Stretchable and Self‐Healing Liquid Metal Elastomer Interconnections for Soft Electronics Platforms

open access: yesAdvanced Materials Technologies, EarlyView.
A self‐healing and electrically conductive liquid metal elastomer enables robust self‐soldering of surface mount devices for soft electronics. Photothermally activated conductive pathways, strong pressure‐sensitive adhesion, and stable package‐integrated contacts provide high conductivity and extreme stretchability.
Su Thiri San   +5 more
wiley   +1 more source

Estudo da aplicabilidade do ultra-som na avaliação das propriedades do concreto asfáltico [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2009O ensaio do ultra-som faz parte dos ensaios não destrutivos de análise das propriedades dos materiais ...
Guerrero Pérez, Yader Alfonso
core  

Ultrasonic fatigue tests at high temperature on an austenitic steel

open access: yesPropulsion and Power Research, 2012
AbstractThe objective of this paper is to study the gigacycle fatigue behavior of an austenitic steel at temperatures of 600°C and 700°C under fully reverse loading (R=−1). Numerical simulation by finite element method (FEM) was used to design the specimens and to analyze the effects of the variation in the dynamic Young modulus with temperature from ...
Wagner, Danièle   +3 more
openaire   +5 more sources

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