4.7. SHAPED CHARGE EFFECTS The table below gives a basic comparison of the penetration performance of different sized shaped charges and the effectiveness of a simple locally manufactured shaped charge. A bulk high explosive charge has been used to give a baseline. All shaped charges use a copper jet forming cone liner and have been placed at the correct stand-off. All charges have used the same brand of plastic high explosives (DEMEX) used against 10 mm rolled homogenous steel (RHS) plates.
CHARGE
PLACEMENT
EFFECT
20 g bulk high explosives in intimate contact.
Total penetration >10 mm RHS
Locally produced shaped charge, 40 mm diameter copper jet forming cone, 20 g high explosives, 120 mm stand-off.
Penetrated 3 x 10 mm RHS plates, partially penetrated 1 x 10 mm RHS plate and 1 x 10 mm plate not penetrated. Total penetration approximately 35 mm RHS
Commercial user filled shaped charge, 30 mm diameter copper jet forming cone, 20 g high explosives, 100 mm stand-off.
Penetrated all 19 x 10 mm RHS plates. Total penetration >190 mm RHS
Commercial user filled shaped charge, 65 mm diameter copper jet forming cone, 300 g high explosives, 200 mm stand-off.
IEDD techniques and procedures
383
Powered by FlippingBook