Results 1 to 10 of about 14,338 (208)
Wireless Ultrasonic Sensing for Fatigue Crack Propagation and Life Prediction in Thin Plate Structures. [PDF]
Sensors (Basel)Recent advancements in sensor technology have made in-situ crack assessment of structures feasible. To investigate the correlation between the ultrasonic amplitude and metal fatigue life, an aluminum compact tension (C(T)) specimen was fabricated to ...
Chen S, Du J, Liu M, Peng Q, Mi J.
europepmc +2 more sources
Ultrasonic fatigue testing of concrete
Ultrasonics, 2021 Cyclic compression fatigue properties of concrete are studied with the ultrasonic fatigue testing method with cycling frequency 19 kHz and are compared to servo-hydraulic tests performed at 60 Hz. Ultrasonic testing was found applicable for rapid generation of very high cycle fatigue (VHCF) data of concrete.
M Fitzka +2 more
exaly +4 more sources
Ultrasonic Fatigue Testing in the Tension-Compression Mode. [PDF]
J Vis Exp, 2018 Ultrasonic fatigue testing is one of a few methods which allow investigating fatigue properties in the ultra-high cycle region. The method is based on exposing the specimen to longitudinal vibrations on its resonance frequency close to 20 kHz. With use of this method, it is possible to significantly decrease the time required for the test, when ...
Trško L, Nový F, Bokůvka O, Jambor M.
europepmc +4 more sources
Design Theory and Experimental Research of Ultrasonic Fatigue Test
Machines, 2022 Ultrasonic fatigue testing is a key technology that is more efficient and energy saving compared to conventional fatigue testing. In order to investigate the behavior of metallic materials at ultra-high frequencies and to verify the validity of ...
Ning Feng +5 more
doaj +2 more sources
A new piezoelectric fatigue testing machine in pure torsion for ultrasonic gigacycle fatigue tests: application to forged and extruded titanium alloys [PDF]
Fatigue and Fracture of Engineering Materials and Structures, 2015 This article briefly discusses the history of the development of ultrasonic fatigue testing methods, with respect to industrial needs. The development of ultrasonic techniques and the progress made in the computer industry have led to improvements in ...
C Bathias, Thierry Palin-Luc
exaly +2 more sources
Self-Sensing Nonlinear Ultrasonic Fatigue Crack Detection under Temperature Variation †. [PDF]
Sensors (Basel), 2018 This paper proposes a self-sensing nonlinear ultrasonic technique for fatigue crack detection under temperature variations. Fatigue cracks are identified from linear (α) and nonlinear (β) ultrasonic parameters recorded by a self-sensing ...
Kim N, Jang K, An YK.
europepmc +2 more sources
Ultrasonic fatigue experiments with biaxial cruciform specimens [PDF]
MATEC Web of Conferences, 2019 Fatigue studies of materials in simple or complex loading systems for any given lifetime is object of continuous research. This is due to the advancements on mechanical and structural components, as well as for new and innovative materials, which implies
da Costa Pedro R. +3 more
doaj +3 more sources
Fatigue Damage Evaluation of Compressor Blade Based on Nonlinear Ultrasonic Nondestructive Testing
Journal of Marine Science and Engineering, 2021 Nonlinear ultrasonic testing is highly sensitive to micro-defects and can be used to detect hidden damage and defects inside materials. At present, most tests are carried out on specimens, and there are few nonlinear ultrasonic tests for fatigue damage ...
Pengfei Wang +4 more
doaj +1 more source
Dynamic frequency-dependent fatigue damage in metals: A state-of-the-art review
Forces in Mechanics, 2023 Ultrasonic high-frequency fatigue testing differs from conventional low-frequency fatigue testing in strain rate and cyclic loading. Ultrasonic fatigue has a resonance frequency of 20,000 Hz and a load frequency below 100 Hz. A large change in cycles per
Kamin Tahmasbi +3 more
doaj +1 more source
Results in Physics, 2023 In order to investigate the fatigue behavior of carbon fiber composites and the influence of different stress levels on their fatigue damage characteristics, the fatigue experiments of carbon fiber composites under different stress ratios are carried out.
Silong Quan, Yuhua Zhang, Peishan Lin
doaj +1 more source