On the relations governing rayleigh wave propagation in bodies with initial stresses

Makhort, F. G.; Gushcha, O. I.; Chernoochenko, A. A.

doi:10.1007/bf00848274

Cited by 7 publications

(5 citation statements)

References 1 publication

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“…More rigorous equations governing the velocity of Rayleigh waves propagating along a surface of a uniaxially loaded column given in other references [2] confirms this assumption. More rigorous equations governing the velocity of Rayleigh waves propagating along a surface of a uniaxially loaded column given in other references [2] confirms this assumption.…”

Section: Theory Of Acoustoelasticitysupporting

confidence: 52%

“…Acoustoelastic effects have long been investigated in numerous studies concerning metallic substances [1][2][3]. The changes in the propagation velocities of ultrasonic waves due to the state of strain (or stress) in an elastic solid are generally referred to as acoustoelastic effects.…”

Section: Introductionmentioning

confidence: 99%

“…It was found that the velocities drop noticeably only after reaching critical stress levels [1][2]. In the previously reported studies of similar objectives, the ultrasonic wave velocities of concrete specimens were measured in a through transmission mode and the changes in the velocities or amplitudes of transmitted wave were correlated to the state of internal damage in the specimen.…”

Section: Introductionmentioning

confidence: 99%

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Nondestructive Evaluation of Damage in Concrete Under Uniaxial Compression

Shokouhi¹,

Zoëga²,

Wiggenhauser³

et al. 2010

AIP Conference Proceedings

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Nondestructive evaluation of a transversely isotropic cylinder encased in a solid elastic medium AIP Conf.ABSTRACT. Surface wave velocities over the sonic frequency range (< 20 KHz) were measured on concrete specimens undergoing various cycles of loading and unloading. Acoustic Emission test (AE) was conducted simultaneously to monitor the microcracking activities. The sonic surface wave velocity was found to be highly stress-dependent. The observed changes in surface wavespeed are repeatable and follow a particular trend. By measuring the wave velocities in both loading and unloading phases, the effects of stress and stress-induced damages could be distinguished. The observed trend could be explained by a combination of acoustoelasticity and microcracking theories.

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Section: Theory Of Acoustoelasticitysupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nondestructive Evaluation of Damage in Concrete Under Uniaxial Compression

Shokouhi¹,

Zoëga²,

Wiggenhauser³

et al. 2010

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…More rigorous equations governing the velocity of Rayleigh waves propagating along a surface of a uniaxially loaded column given in other references [2] confirm this assumption.…”

Section: Theory Of Acoustoelasticitymentioning

confidence: 58%

“…The changes in the propagation velocities of ultrasonic waves due to the state of strain (or stress) in an elastic solid are generally referred to as acoustoelastic effects. Acoustoelastic effects have long been investigated in numerous studies concerning metallic substances [1][2][3]. Only very recently, this effect has been measured in concrete under low levels of stress [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Nondestructive Investigation of Stress-Induced Damage in Concrete

Shokouhi

Zoëga

Wiggenhauser

2010

Advances in Civil Engineering

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The changes in the sonic surface wave velocity of concrete under stress were investigated in this paper. Surface wave velocities at sonic frequency range were measured on a prismatic concrete specimen undergoing several cycles of uniaxial compression. The loading was applied (or removed) gradually in predefined small steps (stress-controlled). The surface wave velocity was measured at every load step during both loading and unloading phases. Acoustic Emission (AE) test was conducted simultaneously to monitor the microcracking activities at different levels of loading. It was found that the sonic surface wave velocity is highly stress dependent and the velocity-stress relationship follows a particular trend. The observed trend could be explained by a combination of acoustoelasticity and microcracking theories, each valid over a certain range of applied stresses. Having measured the velocities while unloading, when the material suffers no further damage, the effect of stress and damage could be differentiated. The slope of the velocity-stress curves over the elastic region was calculated for different load cycles. This quantity was normalized to yield a dimensionless nonlinear parameter. This parameter generally increases with the level of induced damage in concrete.

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Effects of Crystallographic Texture on the Acoustoelastic Coefficients for Rayleigh Waves in Aluminum

Man

1999

Review of Progress in Quantitative Nondestructive Evaluation

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On the relations governing rayleigh wave propagation in bodies with initial stresses

Cited by 7 publications

References 1 publication

Nondestructive Evaluation of Damage in Concrete Under Uniaxial Compression

Nondestructive Evaluation of Damage in Concrete Under Uniaxial Compression

Nondestructive Investigation of Stress-Induced Damage in Concrete

Effects of Crystallographic Texture on the Acoustoelastic Coefficients for Rayleigh Waves in Aluminum

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