The behavior of an epoxy resin under one-dimensional shock loading

2002 ◽  
Vol 92 (11) ◽  
pp. 6590-6594 ◽  
Author(s):  
J. C. F. Millett ◽  
N. K. Bourne ◽  
N. R. Barnes
Keyword(s):  
Epoxy Resin ◽  
Shock Loading ◽  
One Dimensional

Computational design of recovery experiments for ductile metals

2005 ◽  
Vol 461 (2062) ◽  
pp. 3297-3312 ◽  
Author(s):  
N.K Bourne ◽  
G.T Gray
Keyword(s):  
Fracture Toughness ◽  
Shock Loading ◽  
Computational Design ◽  
Current Paper ◽  
Uniaxial Loading ◽  
Ductile Metals ◽  
One Dimensional ◽  
Recovery Techniques ◽  
Recovery Technique

Previous work on the shock loading of metals, has shown that one-dimensional strain histories may be only be approximated in a loaded sample if it is to be recovered at late times to examine microstructure. This proceeds through the use of a system of partial momentum traps and soft, shock-recovery techniques. However, limitations in the degree of uniaxial loading, and on the trapping of tensile pulses, have led to redesign of the target. In the current paper the technique is first assessed, and then modifications are explored to further refine it. Additionally it is illustrated how it may be applied to successfully recover targets of lower innate fracture toughness than has been previously documented. In the first part of the paper, the authors review work undergone to shock recover metals, and highlight associated constraints. In the latter part of the paper, a series of hydrocode simulations is presented to illustrate the design of an improved shock recovery technique that has now been adopted.

scholarly journals The Behavior of Ni, Ni-60Co, and Ni3Al during One-Dimensional Shock Loading

2007 ◽  
Vol 39 (2) ◽  
pp. 322-334 ◽  
Author(s):  
J.C.F. Millett ◽  
N.K. Bourne ◽  
G.T. Gray
Keyword(s):  
Shock Loading ◽  
One Dimensional

Measurement of the shear strength of pure tungsten during one-dimensional shock loading

2007 ◽  
Vol 101 (3) ◽  
pp. 033520 ◽  
Author(s):  
J. C. F. Millett ◽  
G. T. Gray ◽  
N. K. Bourne
Keyword(s):  
Shear Strength ◽  
Shock Loading ◽  
Pure Tungsten ◽  
One Dimensional

The response of TiAl based alloys to one-dimensional shock loading

2002 ◽  
Vol 50 (19) ◽  
pp. 4801-4811 ◽  
Author(s):  
J.C.F. Millett ◽  
N.K. Bourne ◽  
G.T. Gray ◽  
I.P. Jones
Keyword(s):  
Shock Loading ◽  
One Dimensional

scholarly journals Variations in Hardness with Position In One Dimensionally Recovered Shock Loaded Metals

2018 ◽  
Vol 183 ◽  
pp. 02013 ◽  
Author(s):  
G. Whiteman ◽  
D.L. Higgins ◽  
B. Pang ◽  
J.C.F. Millett ◽  
Y-L. Chiu ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Shock Loading ◽  
Mechanical Response ◽  
High Strain ◽  
Cold Work ◽  
Constitutive Models ◽  
Target Assembly ◽  
One Dimensional ◽  
The Impact

The microstructural and mechanical response of materials to shock loading is of the utmost importance in the development of constitutive models for high strain-rate applications. However, unlike a purely mechanical response, to ensure that the microstructure has been generated under conditions of pure one dimensional strain, the target assembly requires both a complex array of momentum traps to prevent lateral releases entering the specimen location from the edges and spall plates to prevent tensile interactions (spall) affecting the microstructure. In this paper, we examine these effects by performing microhardness profiles of shock loaded copper and tantalum samples. In general, variations in hardness both parallel and perpendicular to the shock direction were small indicating successful momentum trapping. Variations in hardness at different locations relative to the impact face are discussed in terms of the initial degree of cold work and the ability to generate and move dislocations in the samples.

The role of aging on the mechanical and microstructural response of aluminum 6061 to one-dimensional shock loading

2010 ◽  
Vol 108 (7) ◽  
pp. 073502 ◽  
Author(s):  
J. C. F. Millett ◽  
N. K. Bourne ◽  
M. Q. Chu ◽  
I. P. Jones ◽  
G. T. Gray ◽  
...  
Keyword(s):  
Shock Loading ◽  
One Dimensional

On the behaviour of the magnesium alloy, AZ61 to one-dimensional shock loading

2010 ◽  
Vol 58 (17) ◽  
pp. 5675-5682 ◽  
Author(s):  
J.C.F. Millett ◽  
S.M. Stirk ◽  
N.K. Bourne ◽  
G.T. Gray
Keyword(s):  
Magnesium Alloy ◽  
Shock Loading ◽  
One Dimensional
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