Maxim expl

Under the title Shear Fracture, Cook (Ref 4, p 346) noted that under conditions in which the tensile forces cannot develop or are restricted, a type of fracturing that can be associated with trajectories of maximum shear stress may develop. Rinehart 8t Pearson (Ref 1) detonated a 1/8 inch layer of expl on the cylindrical surface of a 2)4 inch OD aluminum (24S-T) cylindrical block with a 3/4 inch cylindrical relief hole drilled thru the longitudinal axis. The shock wave moving in toward the relief hole developed at each point of the block two mutually orthogonal trajectories of maximum shear stress. The trajectories, where the shear stress was maximal, spread out in 8 to 12 curved continuous lines from points on the surface of the relief hole. The shear fraction patterns observed along trajectories of maximum shear resembled the "Luder s... 

Stettbacher (Ref 4) gives the following expl props for 74.75/24.55 mixts of liq Oa with solid CaHa maxim d less than 1, normal gas vol 634 1/kg, heat of expln 2760 kcal/kg, deton vel 6000 m/sec, maxim temp of expl (calcd) 7280° and sensitivity to impact 5 cm with 2 kg wt... 

Maxim, Hiram Steven, Sir (1840—1916). American expatriate in Engl who specialized in Ord and expls. His major inventions included (1) design and constrn of the modern machine gun (1884—89), (2) gelatinization of NC using acet, either alone or in mixt with eth or ale (BritP of 1888), (3) addition of an oil, such as castor oil, to a mixt of NC and NG to obtain a slow burning smokeless powd for small cal weapons, (4) prepn of smokeless powd in the form of sin e-perforated rods, plain or with exterior channels ruiming parallel to the long... 

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