Plane Stress Waves in Membranes Caused by an Arbitrary Pressure Wave

1972 ◽  
Vol 51 (1B) ◽  
pp. 241-248
Author(s):  
Uno Nigul
2004 ◽  
Vol 40 (5) ◽  
pp. 365-378 ◽  
Author(s):  
V. A. Polyakov ◽  
R. P. Shlitsa ◽  
V. V. Khitrov ◽  
V. I. Zhigun

2007 ◽  
Vol 79 (2) ◽  
pp. 174-179 ◽  
Author(s):  
Li Ma ◽  
Wu Nie ◽  
Lin-Zhi Wu ◽  
Li-Cheng Guo

1988 ◽  
Vol 49 (C3) ◽  
pp. C3-601-C3-606
Author(s):  
Y. C. LI ◽  
G. Q. ZHOU ◽  
Z. L. LU

1955 ◽  
Vol 22 (4) ◽  
pp. 473-478
Author(s):  
J. H. Huth ◽  
J. D. Cole

Abstract The paper treats the problem of stresses in a spherical elastic shell subjected to a plane pressure wave traveling across it with constant speed, a case of technical interest when considering the effect of blast waves on the structure of a missile in flight.


Author(s):  
C. S. Florio

Abstract Much work has been done to create and understand means to control the propagation of acoustic and light waves through materials and structures. The ability to perform similar studies on the control of stress waves has implications not only for the development of capabilities to disrupt stress waves in order to limit their damage, but also to direct stress waves in order to tailor the behavior of a structure for a specific functional goal. Recent studies have demonstrated the use of voids and inclusions of varying size, geometry, arrangement, and composition in structures to attenuate impact forces or cloak stress waves in thin, flat, plane stress plates. However, many structures that may benefit from these wave modification methods are comprised of cylindrical shells. It is not currently known how well the techniques to control wave propagation and trends identified in plane stress plates can be applied to structures with cylindrical shells. Therefore, this study develops and uses computational modeling methods to examine the modification and control of stress waves induced by an axial impact load in metal plates of varying curvature through the inclusion of macroscale voids. Methods are developed and used in this work to study the response of metal plates of varying curvature with and without voids of different shapes and arrangement to axial impact loads. The response is quantified through the magnitude of the fixed end reaction force and through normal oscillations of discrete points along the length of the plate. Fast Fourier transformation and wavelet coherence techniques are used to understand both the time-averaged and time-dependent oscillation behavior. Correlations are drawn between plate curvature and void design on the control of the propagation of stress waves. The knowledge gained can help guide the understanding design of these stress wave modification features.


2014 ◽  
Vol 566 ◽  
pp. 431-436
Author(s):  
Tatsuro Hori ◽  
Kazuaki Inaba ◽  
Kosuke Takahashi ◽  
Kikuo Kishimoto

Our study focuses on the response of a water-filled polycarbonate tube under axial impact loading to the presence of a single large suspended particle. The particles, composed of steel, aluminum, and polycarbonate, were individually suspended by elastic string along the centerline of the tube. The impact of a free-fall piston initiated pressure waves in the water, called water hammer, and stress waves in the tube, especially at the level of the particle. Hoop strains were measured as impact responses; their distribution indicated that the maximum strains occurred around the particle. These maximum strains are narrowly confined and independent of particle composition. From measurements, hoop strain above the level of the particle become larger with increasing particle mass. We propose a theoretical model that assumes the particle to be a rigid body, and estimate tube responses from the change in area due to the particle’s presence rather than a dependence on particle material. With similar conditions as in experiments, numerical simulations, performed using the software AUTODYN, revealed that the particle motion initiated a reflected pressure wave and created another pressure wave underneath the particle. The transients propagating around the particle are independent of particle material, but composition does affect the attenuation of the reflected pressure wave above the particle.


Fragblast ◽  
1997 ◽  
Vol 1 (2) ◽  
pp. 111-231 ◽  
Author(s):  
A. Daehnke ◽  
H. P. Rossmanith

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