Energy absorption in a bamboo foam

被引：31

作者：

Le Goff, A. ^{[1
]}

Courbin, L. ^{[2
]}

Stone, H. A. ^{[2
]}

Quere, D. ^{[1
]}

机构：

[1] ESPCI, CNRS, UMR Phys & Mecan Milieux Heteorgenes 7636, F-75005 Paris, France

[2] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

来源：

EPL | 2008年 / 84卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1209/0295-5075/84/36001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the ability of soap films to absorb the energy of an impacting projectile. If the impact velocity is large enough, solid objects or water drops pass through the films without breaking them. However, during each impact a small part of the original kinetic energy is extracted, which is revealed by considering collections of parallel films (so-called bamboo foams). Then, the impacting object is observed to stop after crossing numerous films. The total energy absorbed by the foam is found to be the total energy of distortion of the films, integrated over the multiple crossings. The case of inclined films is also considered, and found to affect the trajectory of the projectile. Copyright (C) EPLA, 2008

引用

页数：5