Shock Wave Structure in Particulate Composites

被引：8
|
作者：
Rauls, Michael B. [1 ]
Ravichandran, Guruswami [1 ]
机构：
[1] CALTECH, 1200 E Calif Blvd, Pasadena, CA 91125 USA
来源：
PROCEEDINGS OF THE 2015 HYPERVELOCITY IMPACT SYMPOSIUM (HVIS 2015) | 2015年 / 103卷
关键词：
Shock wave; Particulate composite; Impact;
D O I：
10.1016/j.proeng.2015.04.067
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An experimental study of shock wave profiles in particulate composites of various compositions is undertaken to determine how shock width and rise times depend on the mean particulate size. The composites under examination serve as a model for concrete or polymer bonded explosives, based upon the impedance mismatch between the relatively stiff particulates and compliant matrix. Polymethyl Methacrylate (PMMA) and glass spheres ranging in size from 100 mu m to 1000 mu m are used in concentrations of 30% and 40% glass by volume for experiments with a single bead size, and up to 50% glass by volume for multi-mode particle size distributions. A linear change in shock wave rise time is observed as a function of mean particulate diameter. (C) 2015 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：515 / 521
页数：7
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