Studying the strengthening mechanism and thickness effect of elastomer coating on the ballistic-resistance of the polyurea-coated steel plate

Investigation on Wear and Corrosion Behavior of Cu, Zn, and Ni Coated Corten Steel

“…e weight loss due to the corrosion of Cu, Zn, and Ni is very much low when compared with the uncoated corten steel and is shown in Figure 8. is indicates that the coatings offer the corten steel surface, immunity from corrosion [24][25][26][27]. Among the three coatings, Ni had the least corrosion-induced material weight loss.…”

Enhancement effect of polyurea coating on the impact resistance of aluminum foam

“…At present, scholars have carried out some typical studies on the impact resistance of polyurea‐coated composite structures, mainly focusing on the mechanical properties and failure modes of polyurea‐coated metals, polyurea‐coated concrete, and polyurea‐coated composites 14 . The existing researches on impact resistance of polyurea‐coated metal plates found that due to the viscoelastic properties of polyurea elastomer, part of the energy generated by the metal plate after initial loading would be absorbed and dispersed by the polyurea layer, which can effectively reduce the plastic deformation of metal plate, and the impact protection effect of polyurea‐coated metal plate was greatly affected by the polyurea coating position 15–19 . Amini et al 20 studied the impact resistance of polyurea‐coated steel plate, and believed that the impact protection effect was better when polyurea was coated on the load‐receiving face of steel plate.…”

“…14 The existing researches on impact resistance of polyurea-coated metal plates found that due to the viscoelastic properties of polyurea elastomer, part of the energy generated by the metal plate after initial loading would be absorbed and dispersed by the polyurea layer, which can effectively reduce the plastic deformation of metal plate, and the impact protection effect of polyureacoated metal plate was greatly affected by the polyurea coating position. [15][16][17][18][19] Amini et al 20 studied the impact resistance of polyurea-coated steel plate, and believed that the impact protection effect was better when polyurea was coated on the load-receiving face of steel plate. Mohotti et al 21 studied the impact resistance of polyureacoated aluminum plate, and concluded that polyurea coating on the opposite to load-receiving face was conducive to the improvement of the impact resistance.…”

The effect of polyurea position and thickness on the resistance elastic energy of polyurea composite plate

“…Increasing the thickness of polyurea can reduce the plastic deformation of polyurea-coated aluminum sheets during loading of underwater blast shock waves [4] . The polyurea layer changes the damage pattern of the substrate due to impact-induced reinforcement and strengthening, but increasing the thickness of the polyurea layer has a limited impact on ballistic protection [5] .It can be seen that the location and thickness of polyurea layer coating, in the composite structure protection performance advantages and disadvantages, there is no unified conclusion, so carry out different polyurea coating location and thickness has important significance to the design of polyurea composite structure. In this paper, we take the polyurea coated steel composite plate as the research object, and use Type 53 7.62mm armor-piercing incendiary ammunition as the typical damage element, firstly, we investigate the damage mechanism of polyurea coated steel composite plate by ballistic test; secondly, we conduct numerical simulation test to investigate the influence of different coating positions and thickness of polyurea on the elastic resistance of composite plate; finally, we summarize the polyurea coating method and corresponding coating thickness with better elastic resistance.…”