A comparison of multiple techniques for determining the shock release behaviour of copper

18th APS-SCCM; 24th AIRAPT

Lowe, M.^1 ; Rothman, S.^1 ; Chapman, D.^2 ; Robinson, C.^1

AWE, Aldermaston, Berkshire

RG7 4PR, United Kingdom^1

Institute of Shock Physics, Imperial College London, London

SW7 2BZ, United Kingdom^2

关键词: Ambient conditions;    Compound effect;    Development and testing;    Experimental methodology;    High purity oxygen;    Shock compressions;    Shock loadings;    Subject materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/500/11/112043/pdf
DOI  :  10.1088/1742-6596/500/11/112043

来源: IOP

【 摘 要 】

A shock compression pulse normally consists of a discontinuous rise in stress or pressure followed by a sustained period, if loaded using a technique such as plate impact, and terminated with a release back to ambient conditions over a finite time. This release behaviour is a compound effect, normally dependent upon the initial shock loading conditions and the distance within the subject material that the subsequent release effect has travelled. We discuss recent work undertaken on the development and testing of two experimental methodologies for investigating the release behaviour. These methods were employed to determine the release behaviour of high-purity oxygen-free copper.