MAGNETICALLY INDUCED STRESS WAVES IN A CONDUCTING SOLID - THEORY AND EXPERIMENT

被引：14

作者：

MOON, FC ^{[1
]}

CHATTOPA.S ^{[1
]}

机构：

[1] PRINCETON UNIV, DEPT AEROSP & MECH SCI, PRINCETON, NJ 08540 USA

来源：

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME | 1974年 / 41卷 / 03期

关键词：

Capacitor bank - Compressional waves - Conducting solids - Cylindrical rod - Induced stress - Magnetic pressure - Thermoelastic stress waves - Transient magnetic fields;

D O I：

10.1115/1.3423363

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The induction of stress waves by transient magnetic fields has been examined analytically for a conducting half space and experimentally for a cylindrical rod. The analytical model predicts both a body force generated compressional wave and a thermoelastic stress wave. The model shows the magnetic, temperature, and stress fields in the half space for various times after a prescribed magnetic field is applied at the boundary. In the experiment, a transient, radial, magnetic field (up to 15 kilogauss) was applied to the end of a copper bar. The field was generated by discharging a small capacitor bank through a flat helical coil. The measured compressional stresses obtained in this manner were of the order of the measured magnetic pressure (B2/2µ0), at the end of the bar. © 1974 by ASME.

引用

页码：641 / 646

页数：6