Results 81 to 90 of about 14,338 (208)
Forces in MechanicsUltrasonic fatigue tests were carried out under continuous cycling on the maraging 300 steel for the following conditions: (A) solution annealed (as received from supplier), (B) after aging heat treatment of 490 °C for 6 h, (C) after pre-corrosion attack,
Julio A. Ruiz Vilchez +2 more
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The effect of voids on the flexural fatigue properties of carbon/epoxy composites
, 2010 The role of voids in composite failures has not been well understood or been characterized. This study presents the result of an investigation aimed at examining the mechanical behaviour of unidirectional carbon fibre-reinforced polymer matrix materials ...
Suhot, Mohamed Azlan
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Fatigue Crack Control in Structural Details using surface peening [PDF]
, 2008 This paper presents an analytical and experimental study of crack shape evolution in steel plate specimens under cyclic loading. It is widely known that the introduction of compressive residual stresses by cold working the surface can be highly ...
Shi Song, Ngiam, Brennan, Feargal P.
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Ultrasonic fatigue of superelastic Nitinol and in situ synchrotron observation of strain and damage
Journal of Materials Research and TechnologySuperelastic Nitinol was tested at ultrasonic frequency in the high and very high cycle fatigue regime. Thin sheet specimens were initially preloaded to mimic crimping and deployment of Nitinol implants, which lead to a sample in a multi-phase state with
M. Fitzka +7 more
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مجلة النهرين للعلوم الهندسية, 2019 The effects of the ultrasonic peening treatment (UPT) on the rotating bending fatigue behavior and the behavior of the vibrations of alloy steel DIN 41Cr4 were studied.
Zeina Shaker Mahmood, Jumaa Salman Chiad
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Along the building direction, the fatigue behavior of an additively manufactured (AM) aluminium (AlSi10Mg) alloy was investigated in high-cycle and very-high-cycle regimes by using conventionally electromagnetic resonance and ultrasonic vibration with ...
Pan, Xiangnan, Hong, Youshi
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Properties of GH4169 Superalloy Characterized by Nonlinear Ultrasonic Waves
Advances in Materials Science and Engineering, 2015 The nonlinear wave motion equation is solved by the perturbation method. The nonlinear ultrasonic coefficients β and δ are related to the fundamental and harmonic amplitudes.
Hongjuan Yan +3 more
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Ultrasonic air-coupled capacitive arrays [PDF]
A model is developed which is capable of predicting the pressure field of a rectangular source, as measured by a finite-sized receiver. This novel method treats the problem in a new way, which allows an integration to be performed over the area of the ...
Neild, Adrian
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ULTRASONIC ATTENUATION IN STEEL DURING FATIGUE
Acta Physica Sinica, 1985 The fatigue crack length a and the changes of ultrasonic attenuation △α at frequency 10 MHz 011 compact test sample of 30CrMnSiNi2A steel have been simutane-uosly measured as a function of fatigue cycle number N. It was shown that the △α(N) curve was in good response to the a(N) curve and the △α was traced out during the period of crack nucleation. The
null PAN ZHENG-LIANG +2 more
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Effects of ultrasonic impact treatment on fatigue behavior of naturally exfoliated aluminum alloys
, 2008 This paper presents the results of an investigation into the effects of an ultrasonic impact treatment (UIT) on the fatigue behavior of naturally exfoliated 7075-T6511 alloys.
Chen, W. R., Liao, M., Bellinger, N. C.
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