Shock tube study of the dynamical behavior of granular materials

被引：31

作者：

Britan, A. ^{[1
]}

Ben-Dor, G. ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Mech Engn, Pearlstone Ctr Aeronaut Engn Studies, IL-84105 Beer Sheva, Israel

来源：

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW | 2006年 / 32卷 / 05期

基金：

美国国家科学基金会; 以色列科学基金会;

关键词：

granular materials; cellular materials; compaction waves; filtration; pressure loading;

D O I：

10.1016/j.ijmultiphaseflow.2006.01.007

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The purpose of the present study is to clarify both the compression phenomenon and the gas filtration effect that take place inside a granular medium when it is dynamically loaded by a shock wave. In order to measure the pore pressure and the total stress at different locations along the granular medium, pressure transducers were placed along the side-wall and at the end-wall of the shock tube test section, which was filled with the granular material. In order to elucidate the gas filtration effect, the results of two experiments with identical granular media but with and without filtration were compared. The gas filtration was eliminated by means of a thin plastic film, which was placed at the front edge of the granular medium. Based on this comparison quantitative information on the gas filtration and its role in the stress formation inside granular media of different material and length was obtained. Furthermore, curves of the dynamic compression and the Young moduli of the granular medium for the range of the operating conditions were reconstructed. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：623 / 642

页数：20

共 34 条

[1]

[Anonymous], 1990, INTRO MODELING TRANS, DOI DOI 10.1007/978-94-009-1926-6_7

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