Experimental Investigation of Polyurea-Coated Steel Plates at Underwater Explosive Loading

Table 6

Results of test plates coated with polyurea at the same standoff.

Test no.	Coating thickness (mm)	Surface	Maximum deflection (mm)	Areal density increase compared to uncoated plate (%)	Reduction in deformation (%)
6	No	N/A	113.5	—	—
B3	4	Front	66.6	127	41.3
B4	4	Back	68.4	127	39.7
B5	2	Back	81.9	113	27.8
B6	2	Front	78.8	113	30.5

The standoff distance was 8 mm, and the substrate was 2 mm steel plate in each test.