Numerical study of non-ideal diaphragm rupture in expansion tube

2002 ◽  
Author(s):  
H. Mizuno ◽  
K. Sawada ◽  
A. Sasoh
Keyword(s):  
Numerical Study ◽  
Expansion Tube ◽  
Diaphragm Rupture

Axial Compression and Energy Absorption Characteristics of Reduction Tubes Using a Die under Impact Load

2013 ◽  
Vol 712-715 ◽  
pp. 1519-1526 ◽  
Author(s):  
He Mao ◽  
Kai He ◽  
Chang Jie Luo ◽  
Ru Xu Du
Keyword(s):  
Energy Absorption ◽  
Axial Compression ◽  
Impact Load ◽  
Numerical Study ◽  
Expansion Tube ◽  
Finite Element Software ◽  
Study Results ◽  
Energy Absorbers ◽  
The Relationship ◽  
Absorption Characteristics

Reduction tube using a die is a kind of deformation tubes which are used on railway train as energy absorbers. In this paper, axial compression behavior and energy absorption characteristics of reduction tubes using a die under impact load are investigated. No-linear finite element software LS-DYNA is used to conduct the numerical study. Results for the expansion tube using a die (another kind of deformation tube) and the reduction tube using a die are compared. Assuming two different structures with the same material and sectional area, an analysis shows that the energy absorption of reduction tube is better than the expansion tube. Hence, the reduction tubes using a die are investigated using a series of numerical analysis. The relationship between displacement and load, average load are obtained. The influences of impact mass and impact velocity are discussed.

Optical study of a light diaphragm rupture process in an expansion tube

Shock Waves ◽  
2000 ◽  
Vol 10 (3) ◽  
pp. 167-178 ◽  
Author(s):  
Margaret Wegener ◽  
Mark Sutcliffe ◽  
Richard Morgan
Keyword(s):  
Rupture Process ◽  
Optical Study ◽  
Expansion Tube ◽  
Diaphragm Rupture

Numerical Study of Unsteady High Enthalpy Flow in an Expansion Tube

2019 ◽  
Author(s):  
Kazumasa Kitazono ◽  
Masayuki Takahashi ◽  
Naofumi Ohnishi ◽  
Hideyuki Tanno
Keyword(s):  
Numerical Study ◽  
Expansion Tube ◽  
High Enthalpy

Numerical study of the low-frequency atomic dynamics in a Lennard-Jones glass

1998 ◽  
Vol 77 (2) ◽  
pp. 473-484 ◽  
Author(s):  
M. Sampoli, P. Benassi, R. Dell'Anna,
Keyword(s):  
Numerical Study ◽  
Low Frequency ◽  
Lennard Jones
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