scholarly journals Effect of Fluid Viscosity, Permeability of Rock and Crack Interfacial Stiffness on Dynamic Response of a Geothermal Reservoir Crack. Penny-Shaped Crack Model.

1998 ◽  
Vol 64 (623) ◽  
pp. 1843-1848
Author(s):  
Shin ITO ◽  
Kazuo HAYASHI
Keyword(s):  
Dynamic Response ◽  
Geothermal Reservoir ◽  
Crack Model ◽  
Fluid Viscosity ◽  
Interfacial Stiffness ◽  
Penny Shaped Crack ◽  
Shaped Crack

scholarly journals Transient Elasto-Dynamic Response of a Circular Crack in a Thick Plate Under Torsion

1979 ◽  
Vol 101 (3) ◽  
pp. 207-209 ◽  
Author(s):  
E. P. Chen
Keyword(s):  
Dynamic Response ◽  
Thick Plate ◽  
Dynamic Stress ◽  
Dynamic Stress Intensity Factor ◽  
Circular Crack ◽  
Dual Integral Equations ◽  
Numerical Laplace Inversion ◽  
Penny Shaped Crack ◽  
Shaped Crack ◽  
Sudden Appearance

The elasto-dynamic response of a thick plate under torsion is considered in this study. A penny-shaped crack is assumed to exist in the center of the plate such that the problem is axisymmetric in nature. The crack is pressurized suddenly along its surfaces resulting in transient conditions. This problem is also equivalent to that of sudden appearance of a crack in the loaded plate. Hankel and Laplace transforms are used to reduce the problem to the solution of a pair of dual integral equations. A numerical Laplace inversion routine is used to recover the time dependence of the solution. The dynamic stress intensity factor is determined and its dependence on time and geometry is discussed.

Sign in / Sign up

Export Citation Format

Share Document