A large scale experimental approach to the measurement of spatially and temporally localised loading from the detonation of shallow-buried explosives

被引：49

作者：

Clarke, S. D. ^{[1
]}

Fay, S. D. ^{[1
,2
]}

Warren, J. A. ^{[1
,2
]}

Tyas, A. ^{[1
]}

Rigby, S. E. ^{[1
]}

Elgy, I. ^{[3
]}

机构：

[1] Univ Sheffield, Dept Civil & Struct Engn, Sheffield S1 3JD, S Yorkshire, England

[2] Blastech Ltd, Sheffeld Bioincubator, Sheffield S3 7RD, S Yorkshire, England

[3] Def Sci & Technol Lab, Phys Protect Grp, Salisbury SP4 0JQ, Wilts, England

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2015年 / 26卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

buried charges; impulse; Hopkinson pressure bar; geotechnics; spatial and temporal variation; PRESSURE BAR SIGNALS; PLATES; DISPERSION; TARGETS; CHARGES;

D O I：

10.1088/0957-0233/26/1/015001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A large scale experimental approach to the direct measurement of the spatial and temporal variation in loading resulting from an explosive event has been developed. The approach utilises a fixed target plate through which Hopkinson pressure bars are inserted. This technique allows the pressure-time histories for an array of bars to be generated, giving data over a large area of interest. A numerical interpolation technique has also been developed to allow for the full pressure-time history for any point on the target plate to be estimated and hence total imparted impulse to be calculated. The principles underlying the design of the experimental equipment are discussed, along with the importance of carefully controlling the explosive preparation, and the method and location of the detonation initiation. Initial results showing the key features of the loading recorded and the consistency attainable by this method are presented along with the data interpolation routines used to estimate the loading on the entire face.

引用

页数：10