Application of Study on Liquid Ablation in Laser Propulsion

2014 ◽  
Vol 644-650 ◽  
pp. 4918-4921
Author(s):  
Cun Yan Cui
Keyword(s):  
Stress Wave ◽  
Physical Mechanism ◽  
Elastic Stress ◽  
Research Result ◽  
Liquid Propellant ◽  
Perceptual Knowledge ◽  
Laser Propulsion ◽  
Elastic Stress Wave

It was found that evaporation and thermal elastic stress wave and cavity were dominant phenomenon in laser-induced ablation propulsion with liquid propellant according to our perceptual knowledge established in relative experiment and by analysis of physical mechanism of laser-induced ablation of liquid. The research result of the above phenomenon was introduced in this paper in order to give some elicitations to the researchers who were interested in the mechanism of laser propulsion with liquid ablation.

Study of Stress Wave Propagation in SHPB with NHDMOC

2013 ◽  
Vol 444-445 ◽  
pp. 158-162
Author(s):  
Ming Li Xu ◽  
Guang Ying Zhang ◽  
Ruo Qi Zhang
Keyword(s):  
Wave Propagation ◽  
Stress Wave ◽  
Elastic Stress ◽  
Constitutive Relationship ◽  
Stress Wave Propagation ◽  
One Dimensional ◽  
Elastic Bar ◽  
The One ◽  
Dispersion And Attenuation ◽  
Elastic Stress Wave

In this paper the NHDMOC method which succeeded in studying stress wave propagation with one dimensional strain was applied to study the one-dimensional stress wave propagation. In this paper, the ZWT nonlinear visco-elastic constitutive relationship with 7 parameters to NHDMOC, and corresponding equations were deduced The equations was verified from the comparison of elastic stress wave propagation in SHPB with elastic bar and visco-elastic bar respectively. Finally the dispersion and attenuation of stress wave in SHPB with visco-elastic bar was studied.

160 Propagation of elastic stress wave in universal rate range load-cell

2015 ◽  
Vol 2015.28 (0) ◽  
pp. _160-1_-_160-2_
Author(s):  
Nagahisa OGASAWARA ◽  
Yusuke SHIGA ◽  
Chihiro KAKUNO ◽  
Hiroyuki YAMADA
Keyword(s):  
Stress Wave ◽  
Elastic Stress ◽  
Load Cell ◽  
Rate Range ◽  
Elastic Stress Wave

Optimum Design of Layered Elastic Stress Wave Attenuators

1967 ◽  
Vol 34 (3) ◽  
pp. 751-755 ◽  
Author(s):  
L. E. Anfinsen
Keyword(s):  
Stress Wave ◽  
Elastic Stress ◽  
Stress Amplitude ◽  
Stress Waves ◽  
Wave Form ◽  
One Dimensional ◽  
In Series ◽  
Optimal Material ◽  
Subsequent Propagation ◽  
Elastic Stress Wave

The problem of maximizing or minimizing the amplitude of stress waves propagating through a one-dimensional elastic layered structure is investigated. The properties of layers in series, situated between free and fixed surfaces, are used in deriving difference equations that relate the applied stress wave form at the free surface to the transmitted stress wave form at the fixed surface along characteristic paths. Optimal material requirements are determined for the first transmitted stress wave, which strongly influences the subsequent propagation. Similarity parameters are derived by transform methods which provide optimization criteria for the two-layer case. Materials are systematically selected that can provide stress amplitude reductions of more than 99 percent.

Optimal Design of Bundled Layered Elastic Stress Wave Attenuators

2012 ◽  
Vol 26 (3) ◽  
pp. 387-395 ◽  
Author(s):  
Xiaobo Luo ◽  
Amjad J. Aref ◽  
Gary F. Dargush
Keyword(s):  
Optimal Design ◽  
Stress Wave ◽  
Elastic Stress ◽  
Elastic Stress Wave

ON ELASTIC STRESS WAVES IN AN IMPACTED PLATE

2014 ◽  
Vol 06 (04) ◽  
pp. 1450047 ◽  
Author(s):  
ZHANFANG LIU ◽  
XIAOYONG SUN ◽  
YUAN GUO
Keyword(s):  
Wave Motion ◽  
Elastic Stress ◽  
Wave Theory ◽  
Stress Waves ◽  
Ceramic Plate ◽  
Elastic Solids ◽  
Plate Impact ◽  
Impact Surface ◽  
Macro Scale ◽  
Elastic Stress Wave

Elastic stress wave theory is developed and the stress waves in the impacted plate are examined in the paper. Generalized linear elasticity is adopted where the couple stress and curvature tensor are both deviatoric tensors and they meet a linear constitutive relation. It is found that there exist volumetric, rotational, and deviatoric waves in the generalized elastic solids. However, for macro-scale elastic solids only two wave modes, namely a volumetric wave and a deviatoric wave should be taken into account. Wave motion in plate impact tests is studied that a volumetric wave and a deviatoric wave are proposed. A set of exact solutions is attained for elastic stress waves in an impact plate. Excitation of stress waves at impact surface and reflection at free surface are formulated. Propagation of stress waves in the plate is analyzed in the waveforms. The predicted stress history in a ceramic plate under impact is agreed very well with the experiment measurement.

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