Skip to main content

2020 | OriginalPaper | Buchkapitel

Diffraction of Scalar-Impulsive(SH) Waves by a Spherical Cavity Embedded in an Inhomogeneous Medium

verfasst von : Aditya Kumar Patnaik, S. M. Abo-Dahab, Sapan Kumar Samal

Erschienen in: Recent Trends in Wave Mechanics and Vibrations

Verlag: Springer Singapore

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config
loading …

Abstract

The solution of displacement field to the problem of diffraction of SH waves generated by an impulsive point source due to a spherical cavity in a non-homogeneous elastic medium, has been obtained in integral forms. The integrals are evaluated asymptotically to obtain short time estimate of the motion near the wave front for large frequency. The displacement of impulsive waves are shown graphically for different values of inhomogeneity factor ‘\(q(0<q<1)\)’ with respect to observational point. It is observed that the displacement of diffracted SH-waves decreases as the arrival time increases for some fixed values of inhomogeneity of the medium. Also for fixed arrival time the displacement decreases as the inhomogeneity increases.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 340 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Jetzt Wissensvorsprung sichern!

Literatur
1.
Zurück zum Zitat Gilbert F, Knopoff L (1960) Scattering of impulsive elastic waves by a rigid cylinder. J Acoustical Soc America 32:841–857 Gilbert F, Knopoff L (1960) Scattering of impulsive elastic waves by a rigid cylinder. J Acoustical Soc America 32:841–857
2.
3.
Zurück zum Zitat Knopoff L, Gilbert F (1961) Diffraction of elastic waves by the core of the Earth. Bull Seism Soc Am 51(1):35–49MathSciNet Knopoff L, Gilbert F (1961) Diffraction of elastic waves by the core of the Earth. Bull Seism Soc Am 51(1):35–49MathSciNet
4.
Zurück zum Zitat Pao YH, Mow CC (1963) Scattering of plane compressional waves by a spherical obstacle. J Appl Phys 34:493–499MathSciNetCrossRef Pao YH, Mow CC (1963) Scattering of plane compressional waves by a spherical obstacle. J Appl Phys 34:493–499MathSciNetCrossRef
5.
Zurück zum Zitat Norwood F, Miklowitz J (1967) Diffraction of transient elastic waves by a spherical cavity. J Appl Mech 34:735–744CrossRef Norwood F, Miklowitz J (1967) Diffraction of transient elastic waves by a spherical cavity. J Appl Mech 34:735–744CrossRef
6.
Zurück zum Zitat Rajhans BK, Kesari P (1986) Scattering of compressional waves by a cylindrical cavity. J Math Phys Sci 20:429–444MATH Rajhans BK, Kesari P (1986) Scattering of compressional waves by a cylindrical cavity. J Math Phys Sci 20:429–444MATH
7.
Zurück zum Zitat Hwang L, Kuo JT, Teng YC (1982) Three-dimensional elastic wave scattering and diffraction due to a rigid cylinder embedded in an elastic medium by a point source. Pure Appl Geophys 120:548–576CrossRef Hwang L, Kuo JT, Teng YC (1982) Three-dimensional elastic wave scattering and diffraction due to a rigid cylinder embedded in an elastic medium by a point source. Pure Appl Geophys 120:548–576CrossRef
8.
Zurück zum Zitat Akkas N, Erdogan F (1990) Acoustic waves propagating away from a spherical cavity-an application of residual variable method. In: Proceedings of the first international conference of vibration problems of mathematical elasticity and physics, W.B., India Akkas N, Erdogan F (1990) Acoustic waves propagating away from a spherical cavity-an application of residual variable method. In: Proceedings of the first international conference of vibration problems of mathematical elasticity and physics, W.B., India
9.
Zurück zum Zitat Rajhans BK, Samal SK (1992) Three dimensional diffraction of compressional waves by a rigid cylinder in an inhomogeneous medium. Proc Indian Acad Soc 102:189–200MATH Rajhans BK, Samal SK (1992) Three dimensional diffraction of compressional waves by a rigid cylinder in an inhomogeneous medium. Proc Indian Acad Soc 102:189–200MATH
10.
Zurück zum Zitat Samal SK, Rajhans BK (1992) Scattering of SH-waves by a spherical cavity. Acta Geophys Pol XL:85–92 Samal SK, Rajhans BK (1992) Scattering of SH-waves by a spherical cavity. Acta Geophys Pol XL:85–92
11.
Zurück zum Zitat Hasheminejad SM, Maleki M (2006) Diffraction of eastic waves by a spherical inclusion with an anisotropic graded interfacial layer and dynamic stress concentrations. J Nondestruct Eval 25(2):67–81CrossRef Hasheminejad SM, Maleki M (2006) Diffraction of eastic waves by a spherical inclusion with an anisotropic graded interfacial layer and dynamic stress concentrations. J Nondestruct Eval 25(2):67–81CrossRef
12.
Zurück zum Zitat Avila-Carrera R (2006) Scattering and diffraction of elastic P- and S-waves by a spherical obstacle: a review of the classical solution. Geofis Int 45. Mexico ene/mar 2006 Avila-Carrera R (2006) Scattering and diffraction of elastic P- and S-waves by a spherical obstacle: a review of the classical solution. Geofis Int 45. Mexico ene/mar 2006
13.
Zurück zum Zitat Wang L, Wei P, Liu X, Zhang G (2014) Diffraction of elastic waves by a cylindrical nanohole. Appl Mech Mater 526:145–149CrossRef Wang L, Wei P, Liu X, Zhang G (2014) Diffraction of elastic waves by a cylindrical nanohole. Appl Mech Mater 526:145–149CrossRef
14.
Zurück zum Zitat Abo-Dahab SM, Singh B (2009) Influences of magnetic field on wave propagation in generalized thermoelastic solid with diffusion. Arch Mech 61(2):121–136MathSciNetMATH Abo-Dahab SM, Singh B (2009) Influences of magnetic field on wave propagation in generalized thermoelastic solid with diffusion. Arch Mech 61(2):121–136MathSciNetMATH
15.
Zurück zum Zitat Abd-Alla AM, Abo-Dahab SM, Bayones FS (2011) Effect of the rotation on an infinite generalized magneto-thermoelastic diffusion body with a spherical cavity. Int Rev Phys 5(4):171–181 Abd-Alla AM, Abo-Dahab SM, Bayones FS (2011) Effect of the rotation on an infinite generalized magneto-thermoelastic diffusion body with a spherical cavity. Int Rev Phys 5(4):171–181
16.
Zurück zum Zitat Abd-Alla AM, Abo-Dahab SM (2012) Effect of rotation and initial stress on an infinite generalized magneto-thermoelastic diffusion body with a spherical cavity. J Therm Stress 35:892–912CrossRef Abd-Alla AM, Abo-Dahab SM (2012) Effect of rotation and initial stress on an infinite generalized magneto-thermoelastic diffusion body with a spherical cavity. J Therm Stress 35:892–912CrossRef
17.
Zurück zum Zitat Abo-Dahab SM, Lotfy Kh, Gohaly A (2015) Rotation, magnetic field and stiffness effect on propagation of surface waves in an elastic layer lying over a generalized thermoelastic diffusive half-space with imperfect boundary. Math Probl Eng 2015:1–15CrossRef Abo-Dahab SM, Lotfy Kh, Gohaly A (2015) Rotation, magnetic field and stiffness effect on propagation of surface waves in an elastic layer lying over a generalized thermoelastic diffusive half-space with imperfect boundary. Math Probl Eng 2015:1–15CrossRef
18.
Zurück zum Zitat Bullen KE (1985) Theory of seismology, 4th edn. Cambridge University Press Bullen KE (1985) Theory of seismology, 4th edn. Cambridge University Press
19.
Zurück zum Zitat Roy A (1969) On the propagation of SH-waves in a heterogeneous space. Bull Seism Soc Am 59(5):1889–1903 Roy A (1969) On the propagation of SH-waves in a heterogeneous space. Bull Seism Soc Am 59(5):1889–1903
20.
Zurück zum Zitat Knopoff L (1985) Lectures note on the scattering of impulsive wave motions from a rigid sphere, UCLA Knopoff L (1985) Lectures note on the scattering of impulsive wave motions from a rigid sphere, UCLA
22.
Zurück zum Zitat Tranter CJ (1951) Integral transforms in mathematical physics. Wiley, New York Tranter CJ (1951) Integral transforms in mathematical physics. Wiley, New York
23.
24.
Zurück zum Zitat Hobson EW (1955) The theory of spherical and ellipsoidal harmonics. Chelsea Publishing Co., New YorkMATH Hobson EW (1955) The theory of spherical and ellipsoidal harmonics. Chelsea Publishing Co., New YorkMATH
26.
Zurück zum Zitat Samal S.K (1992) Some problems of elastodynamics. Ph.D. thesis Samal S.K (1992) Some problems of elastodynamics. Ph.D. thesis
Metadaten
Titel
Diffraction of Scalar-Impulsive(SH) Waves by a Spherical Cavity Embedded in an Inhomogeneous Medium
verfasst von
Aditya Kumar Patnaik
S. M. Abo-Dahab
Sapan Kumar Samal
Copyright-Jahr
2020
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-15-0287-3_7

    Marktübersichten

    Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen.