A shock tube facility to generate blast loading on structures

被引：65

作者：

Aune, Vegard ^{[1
,2
]}

Fagerholt, Egil ^{[1
,2
]}

Langseth, Magnus ^{[1
,2
]}

Borvik, Tore ^{[1
,2
]}

机构：

[1] Norwegian Univ Sci & Technol NTNU, Dept Struct Engn, Struct Impact Lab SIMLab, NO-7491 Trondheim, Norway

[2] Norwegian Univ Sci & Technol NTNU, CASA, Trondheim, Norway

来源：

INTERNATIONAL JOURNAL OF PROTECTIVE STRUCTURES | 2016年 / 7卷 / 03期

关键词：

Experimental techniques; shock tube; far-field airblast loading; three-dimensional digital image correlation; fluid-structure interaction;

D O I：

10.1177/2041419616666236

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study evaluates the performance of a new shock tube facility used to produce blast loading in controlled laboratory environments. The facility was found to generate a planar shock wave over the tube cross section by measuring the pressure distribution on a massive steel plate located at the end of the tube. The properties of the shock wave proved to be a function of driver length and driver pressure, and the positive phase of the measured pressure-time histories was similar to those generated from actual far-field explosive detonations. However, the shock tube is also suited to investigate fluid-structure interaction effects and the behaviour of materials in blast events. This was demonstrated using a three-dimensional digital image correlation technique to measure the deformation field of thin steel plates. Synchronization of the three-dimensional digital image correlation and pressure measurements enabled a thorough investigation of the entire experiment and identification of fluid-structure interaction effects. Finally, one-dimensional numerical simulations were performed to investigate the wave patterns during the experiments.

引用

页码：340 / 366

页数：27