Allan Lambourn

A L consider their equation as a modification of Wilkins equation, but it also incorporates the data of Fickett-Wood (Ref 15, p 53) and Pike (Ref 15, pp 53-4) equations of state 

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In older to obtain the dip in the adiabat below the constant y form, Wilkins, accdg to Allan Lambourn (Ref 15, p 54), added an exponential term to the Pike form, giving ... 

To overcome these difficulties, Allan Lambourn (Ref 15, p 54) proposed that the two explosives examined by them a) HMX/TNT/Inert-68/30/2 and b) HMX/lnert-95/5, use the Pike equation ... 

This is the point in the reaction zone at which the CJ Condition applies. Since the cross section of an actual chge is always of a finite area, the locus of points at which the condition applies is a plane, called the CJ Plane, or other surface, CJ Surface. If the C] condition applies thruout a region of finite thickness, even though small, the more appropriate term is CJ Layer. The determination of the CJ Point for HMX/Inert (95/5) for HMX/TNT/Inert (68/30/2) is reported by J.W.S. Allan B.D, Lambourn in the 4th ONR Sym Deton (1965), p 55... 

J. W. S. Allan, and B. D. Lambourn, An Equation of State of Detonation Products at Pressures below 30 Kilobars , Fourth International Symposium on Detonation, ACR-126, 52 (1965). 

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