scholarly journals Effect of couple-stresses on the Mode I dynamic stress intensity factors for two equal collinear cracks in an infinite elastic medium during passage of time-harmonic stress waves

2013 ◽  
Vol 50 (10) ◽  
pp. 1597-1604 ◽  
Author(s):  
Shouetsu Itou
Keyword(s):  
Stress Intensity ◽  
Elastic Medium ◽  
Stress Intensity Factors ◽  
Dynamic Stress ◽  
Stress Waves ◽  
Mode I ◽  
Intensity Factors ◽  
Collinear Cracks ◽  
Dynamic Stress Intensity Factors ◽  
Time Harmonic

Dynamic Stress Intensity Factors of Three Collinear Cracks in an Orthotropic Plate Subjected to Time-Harmonic Disturbance

2015 ◽  
Vol 32 (5) ◽  
pp. 491-499
Author(s):  
S. Itou
Keyword(s):  
Stress Intensity ◽  
Stress Intensity Factors ◽  
Elastic Waves ◽  
Orthotropic Plate ◽  
Dynamic Stress ◽  
Intensity Factors ◽  
Collinear Cracks ◽  
Dynamic Stress Intensity Factors ◽  
Dynamic Stresses ◽  
Time Harmonic

AbstractAbstract-The dynamic stresses around three collinear cracks in an infinite orthotropic plate are solved. In this configuration, two equal cracks are situated symmetrically on either side of a central crack, and time-harmonic elastic waves impinge perpendicularly to the cracks. The problem is solved by superimposing two types of solutions. One solution is that for a crack in an infinite orthotropic plate, and the other is for two collinear cracks. The unknown coefficients in the superimposed solution are determined by applying the boundary conditions at the surfaces of the three cracks using the Schmidt method. The dynamic stress intensity factors are calculated numerically for an orthotropic plate that corresponds to the elastic properties of a boron-epoxy composite.

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