scholarly journals Shock tube experiments and Fe-simulation of the structural and material non-linear transient response of plates subjected to blast loading

2010 ◽  
Author(s):  
R. Schmidt ◽  
M. Stoffel ◽  
T. D. Vu
Keyword(s):  
Shock Tube ◽  
Transient Response ◽  
Fe Simulation ◽  
Blast Loading ◽  
Non Linear

Using a shock tube to predict the response of polymeric foam to a blast loading

2006 ◽  
Vol 134 ◽  
pp. 783-787 ◽  
Author(s):  
S. Ouellet ◽  
D. Frost ◽  
A. Bouamoul
Keyword(s):  
Shock Tube ◽  
Blast Loading ◽  
Polymeric Foam

Linear and non-linear dynamic response of sandwich panels to blast loading

2004 ◽  
Vol 35 (6-8) ◽  
pp. 673-683 ◽  
Author(s):  
Liviu Librescu ◽  
Sang-Yong Oh ◽  
Joerg Hohe
Keyword(s):  
Dynamic Response ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Linear Dynamic ◽  
Non Linear

scholarly journals Non-Linear Seismic Analysis of Steel Plate Shear Wall Subjected to Blast Loading

2020 ◽  
Vol 955 ◽  
pp. 012025
Author(s):  
Prashant Sunagar ◽  
Manish S Dharek ◽  
K Nruthya ◽  
K S Sreekeshava ◽  
B Nagashree ◽  
...  
Keyword(s):  
Steel Plate ◽  
Seismic Analysis ◽  
Blast Loading ◽  
Shear Wall ◽  
Steel Plate Shear Wall ◽  
Non Linear

scholarly journals Sandwich Panels with Polymeric Foam Cores Exposed to Blast Loading: An Experimental and Numerical Investigation

2020 ◽  
Vol 10 (24) ◽  
pp. 9061
Author(s):  
Kristoffer Aune Brekken ◽  
Aase Reyes ◽  
Torodd Berstad ◽  
Magnus Langseth ◽  
Tore Børvik
Keyword(s):  
Shock Tube ◽  
Numerical Models ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Experimental Tests ◽  
Quantitative Agreement ◽  
Low Velocity Impact ◽  
Blast Load ◽  
Low Velocity ◽  
Skin Deformation

Sandwich panels have proven to be excellent energy absorbents. Such panels may be used as a protective structure in, for example, façades subjected to explosions. In this study, the dynamic response of sandwich structures subjected to blast loading has been investigated both experimentally and numerically, utilizing a shock tube facility. Sandwich panels made of aluminium skins and a core of extruded polystyrene (XPS) with different densities were subjected to various blast load intensities. Low-velocity impact tests on XPS samples were also conducted for validation and calibration of a viscoplastic extension of the Deshpande-Fleck crushable foam model. The experimental results revealed a significant increase in blast load mitigation for sandwich panels compared to skins without a foam core, and that the back-skin deformation and the core compression correlated with the foam density. Numerical models of the shock tube tests were created using LS-DYNA, incorporating the new viscoplastic formulation of the foam material. The numerical models were able to capture the trends observed in the experimental tests, and good quantitative agreement between the experimental and predicted responses was in general obtained. One aim of this study is to provide high-precision experimental data, combined with a validated numerical modelling strategy, that can be used in simulation-based optimisation of sandwich panels exposed to blast loading.

scholarly journals DETERMINATION OF EXPLOSIVE BLAST LOADING EQUIVALENCIES WITH AN EXPLOSIVELY DRIVEN SHOCK TUBE

2009 ◽  
Author(s):  
Scott I. Jackson ◽  
John S. Morris ◽  
Larry G. Hill ◽  
Mark Elert ◽  
Michael D. Furnish ◽  
...  
Keyword(s):  
Shock Tube ◽  
Blast Loading

Transient Response of Inductrack Systems for Maglev Transport: Part II—Solution and Dynamic Analysis

2020 ◽  
Vol 142 (3) ◽  
Author(s):  
Ruiyang Wang ◽  
Bingen Yang
Keyword(s):  
Steady State ◽  
Dynamic Analysis ◽  
Transient Response ◽  
Numerical Procedure ◽  
Steady State Response ◽  
Governing Equations ◽  
Transient Model ◽  
State Response ◽  
Proposed Model ◽  
Non Linear

Abstract In Part I of this two-part paper, a new benchmark transient model of Inductrack systems is developed. In this Part II, the proposed model, which is governed by a set of non-linear integro-differential governing equations, is used to predict the dynamic response of Inductrack systems. In the development, a state-space representation of the non-linear governing equations is established and a numerical procedure with a specific moving circuit window for transient solutions is designed. The dynamic analysis of Inductrack systems with the proposed model has two major tasks. First, the proposed model is validated through comparison with the noted steady-state results in the literature. Second, the transient response of an Inductrack system is simulated and analyzed in several typical dynamic scenarios. The steady-state response results predicted by the new model agree with those obtained in the previous studies. On the other hand, the transient response simulation results reveal that an ideal steady-state response can hardly exist in those investigated dynamic scenarios. It is believed that the newly developed transient model provides a useful tool for dynamic analysis of Inductrack systems and for in-depth understanding of the complicated electro-magneto-mechanical interactions in this type of dynamic systems.

Sign in / Sign up

Export Citation Format

Share Document