Impact, drop weight

This nitroguanidine analogue is more sensitive than RDX by the drop-weight impact test. 

Kim, J.K., Mackay, D.B. and Mai, Y.W., (1993). Drop weight impact tolerance of CFRP with rubber modified epoxy matrix. Composites 24, 458-494. 

B) Drop Weight Impact Test used at LASL is a modified version of machine developed by E.H. Eyster R.F. Davis at the Explosives Research Laboratory, Bruceton, Pa and described in OSRD 5744(1945). The apparatus is known as "ERL Machine . 

Fig 2. Drop Weight Impact Machine, ERL Model, type 12 tools... 

Eyster R.F, Davis, OSRD Rept 5744(1945) (One type of Drop-Weight Impact Machine developed in the US during WWII) 3) Ohart (1946), 48-9, 96, 131-32, 210 380-81 4) Anon, 11 Picatinny Arsenal Testing Manual", No 2—2 (1951), p 3 5) Glossary of... 

D) E.H. Eyster R.F. Davis, " Physical Testing of Explosives Part II, Sen sitivity Studies with the Drop-Weight Impact Machine", OSRD Rept 5744 (Dec 1945)... 

I). E.H. Eyster L.C. Smith, "Studies of the ERL Type 12 Drop-Weight Impact Machine at NOL", NOL Memo 10003(1949)... 

No unique relationship between width and length revision has been found (Paschke, 1967). The revision runs parallel with birefringence up to a limiting value. Van Leeuwen showed that a distinct relationship exists between the drop weight impact strength and the birefringence the impact strength is very sensitive to orientation. A less satisfactory correlation with reversion was found. 

Based on drop-weight impact testing. 6 Reported by the supplier. 

Fig. 3.15 Schematic diagram of drop-weight impact and furnace with LIDG ports.

Drop weight impact strength High Moderate High Moderate... 

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