Interaction of time-harmonic SH waves with a crack-like inclusion: edge region analysis

Elastodynamic stress concentration near the tips of a crack-like inclusion of finite length generated by the diffraction of high-freqency time-harmonic SH waves is analyzed. It is shown that the stress intensity factors at the tips of inclusion are provided by the fields describing the solution of t...

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Bibliographic Details
Published in:International journal of fracture 1998-01, Vol.94 (1), p.51-62
Main Authors: EMETS, V. F, KIT, H. S, KUNETS, Y. I
Format: Article
Language:English
Subjects:
Boundary value problems
Dimensionless numbers
Edge waves
Elastodynamics
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fracture mechanics, fatigue and cracks
Fundamental areas of phenomenology (including applications)
Mechanical wave propagation (including diffraction, scattering, and dispersion)
Physics
SH waves
Solid mechanics
Stress concentration
Stress intensity factors
Structural and continuum mechanics
Tips
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
Wave diffraction
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Summary:Elastodynamic stress concentration near the tips of a crack-like inclusion of finite length generated by the diffraction of high-freqency time-harmonic SH waves is analyzed. It is shown that the stress intensity factors at the tips of inclusion are provided by the fields describing the solution of the static boundary value problem for a semi-infinite strip and edge waves travelling between the two inclusion tips. The solution to the problem is expressed in a closed form that is computationally effective and yields accurate results in the resonance region of dimensionless wave numbers.
ISSN:0376-9429
1573-2673
DOI:10.1023/A:1007541214562