Wave propagation, damage evolution, and dynamic fracture extension. Part I. Percussion drilling

1996 ◽  
Vol 32 (3) ◽  
pp. 350-358 ◽  
Author(s):  
H. P. Rossmanith ◽  
R. E. Knasmillner ◽  
A. Daehnke ◽  
L. Mishnaevsky
Keyword(s):  
Wave Propagation ◽  
Dynamic Fracture ◽  
Damage Evolution ◽  
Percussion Drilling

Wave propagation, damage evolution, and dynamic fracture extension. Part II. Blasting

1996 ◽  
Vol 32 (4) ◽  
pp. 403-410 ◽  
Author(s):  
H. P. Rossmanith ◽  
R. E. Knasmillner ◽  
A. Daehnke ◽  
L. Mishnaevsky
Keyword(s):  
Wave Propagation ◽  
Dynamic Fracture ◽  
Damage Evolution

Dynamic Fracture of 6061-T6 Aluminum Cylinders

1977 ◽  
Vol 44 (4) ◽  
pp. 643-646 ◽  
Author(s):  
D. L. Wesenberg ◽  
M. J. Sagartz
Keyword(s):  
Wave Propagation ◽  
Dynamic Fracture ◽  
Capacitor Bank ◽  
Magnetic Pressure ◽  
Strain Rates ◽  
Radial Expansion ◽  
Material Parameters ◽  
Subsequent Fracture ◽  
Thin Walled ◽  
Good Agreement

Radial expansion and subsequent fracture into segments of thin-walled cylindrical shells at large initial strain rates are studied analytically and experimentally. The theory of probability along with a description of relief wave propagation away from each fracture is used to formulate a theory which predicts the number of fractures and the distribution of fragment lengths. Eleven 6061-T6 Aluminum cylinders were expanded at strain rates of ∼104 s−1 by magnetic pressure pulses from a capacitor bank discharge, and these results are compared with predictions. Good agreement is shown between experimental results and predictions. In addition, the physical and material parameters to which the problem is sensitive are discussed.

scholarly journals Wave Propagation and Dynamic Fracture in Laser Shock-Loaded Solid Materials

10.5772/6864 ◽  
2010 ◽  
Author(s):  
Thibaut De ◽  
Jean-Paul Cuq-Lelandais ◽  
Michel Boustie ◽  
Emilien Lescoute ◽  
Laurent Berthe
Keyword(s):  
Wave Propagation ◽  
Dynamic Fracture ◽  
Laser Shock ◽  
Solid Materials

Dynamic fracture as a process of nonlinear damage wave propagation

2008 ◽  
Vol 150 (1-2) ◽  
pp. 227-240 ◽  
Author(s):  
A. V. Kashtanov ◽  
Yu. V. Petrov ◽  
N. Pugno ◽  
A. Carpinteri
Keyword(s):  
Wave Propagation ◽  
Dynamic Fracture

scholarly journals Dynamic Analysis of Cracked Octagonal Quasicrystals

2011 ◽  
Vol 2011 ◽  
pp. 1-18 ◽  
Author(s):  
Wu Li ◽  
Tian You Fan
Keyword(s):  
Stress Intensity Factor ◽  
Wave Propagation ◽  
Stress Intensity ◽  
Dynamic Fracture ◽  
Additional Condition ◽  
Moving Boundary ◽  
Stress Singularity ◽  
Elastic Media ◽  
Griffith Crack ◽  
And Diffusion

We focus on the dynamic fracture problem of octagonal quasicrystals by applying a rectangular sample with a Griffith crack which is often used in classical elastic media based on the method of finite difference. This paper mainly is to investigate the variation of phonon, phason fields, and stress singularity around the crack tip including the stress intensity factor. In addition, the moving boundary due to the crack propagation has also been treated by introducing an additional condition for determining solution. The influence of wave propagation and diffusion in the dynamic process is also discussed in detail. Through comparing the results of octagonal quasicrystals with the results of crystal, this paper proclaims the influence of phonon-phason coupling in dynamic fracture problem of octagonal quasicrystals which should not be neglected.

Sign in / Sign up

Export Citation Format

Share Document