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Study and Optimal Design of the Integrated 37° Unidirectional SV-EMAT for Rapid Rail Flaw Detection. [PDF]

Sensors (Basel)
Yuan W.
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Fatigue Notch Sensitivity of High Entropy Alloy CoCrFeNiMn Tested Under Ultrasonic Loading Conditions

Mitra Delshadmanesh, Martin Lederer, Golta Khatibi   +2 more
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Ultrasonic detection of fatigue damage

Engineering Fracture Mechanics, 1972
Abstract Results are reported of recent experiments which used change in ultrasonic attenuation measurements as a continuous monitor of fatigue damage during cyclic testing of polycrystalline aluminum and steel specimens. Ultrasonic pulses were generated by an x-cut quartz transducer firmly attached to the clamped end of a specimen rod using Eastman ...
Narayan R. Joshi, Robert E. Green
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Ultrasonic absortion in fatigued materials

AIP Conference Proceedings, 2013
Non-destructive detection of fatigue damage, allowing an estimate of the residual life-time of components, could contribute to a safe and reliable operation of components and installations. Ultrasonic absorption, i.e. the internal friction, of a material increases with increasing fatigue or creep damage and there are many theories trying to explain the
S. Dugan, W. Arnold
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Ultrasonic response to material fatigue

SPIE Proceedings, 2001
In many engineering materials micro-cracks develop when the materials are subjected to repeated loading or fatigue loading. These micro-cracks increase the material attenuation and alter the ultrasonic wave speed. Careful experiments show that as a material is subjected to a greater number of fatigue cycles, its higher order (also known as the ...
Young-Chul Jung, Tribikram Kundu
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Fatigue and Ultrasonic Attenuation

1957
Experiments conducted in this laboratory over the past several years have shown that appreciable changes occur in the propagation and recovery behavior of ultrasonic waves in materials during stress or fatigue cycling. Although most of the exploratory work has been done on three types of aluminum, the method is not restricted to aluminum. The following
Rohn Truell, Akira Hikata
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FATIGUE CRACK GROWTH UNDER ULTRASONIC FATIGUE LOADING

Fatigue & Fracture of Engineering Materials & Structures, 1997
Abstract— In this paper, a stress and modal analysis of an ultrasonic vibration system consisting of a notched specimen and one or two amplifying horns have been performed by using 3D finite element calculations. The stress intensity factors in ultrasonic fatigue crack propagation are evaluated by means of displacement and energy approaches.
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Recent developments in ultrasonic fatigue

Fatigue & Fracture of Engineering Materials & Structures, 2015
AbstractThe recently increased interest in very high cycle fatigue properties of materials has led to extended use and further development of the ultrasonic fatigue testing technique. Specimens are stimulated to resonance vibrations at ultrasonic frequency, where the high frequency allows collecting lifetime data of up to 1010cycles and measuring crack
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Ultrasonic Evaluation of Fatigue Damage

AIP Conference Proceedings, 2004
Despite the fact that most engineers and designers are aware of fatigue, many severe breakdowns of industrial plant and machinery still occur due to fatigue. In effect, it’s been estimated that fatigue causes at least 80% of the failures in modern engineering components.
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