Numerical and Experimental Study on the Locally Blast Loaded Polyurea Coated Steel Plates

Abstract

The damages and casualties inflicted by mine and IED attacks in security challenging areas generated a strong and quick response from nations all over the world. As a part of this response several national and private research facilities increased their efforts in identifying and implementing new ways or technologies to enable blast wave mitigation. The current paper aim to investigate the opportunity of using polyurea coated steel plates as a possible new blast mitigation approach, as suggested by several investigators. In order to objectively conclude about the ability of polyurea coated plates to sustain locally blast loads several experimental tests were performed according to STANAG 4569 demands for a 1/6 scaled plate structure. In order to numerically validate the experimental results several Autodyn simulations were set-up. The numerical and experimental results exibits a fair correlation, both pointing towards a dismiss of the idea of using polyurea coated steel plates as structural and cost effective blast mitigation approach.

Novel Polyurethanes Based on Recycled Polyethylene Terephthalate: Synthesis, Characterization, and Formulation of Binders for Environmentally Responsible Rocket Propellants

“…Structurally, solid rocket composite propellants are typically based on a heterogeneous combination of distinct compounds that serve as fuel, oxidizer, burn-rate modifiers, and binder [1,2]. Usually, the applicability of polyurethane or polyurea matrices lies in the field of thermal insulations, hydro-isolations, adhesives, and ballistic protection [3][4][5][6]. In the case of energetic materials, they have a dual purpose, as a binding agent and as an organic fuel [1,2].…”

Dynamic Tests on Polyurea-Based Hybrid Composites for Ballistic Protection

“…In previous studies, there was shown the importance of polymers in various military protection applications [1][2][3][4], and was demonstrated that the reinforcement of such polymers conducts to better composite materials, which possess higher strength and higher modulus [2,[5][6][7][8][9][10], in order to, e.g., reduce blunt trauma [10].…”

Evaluation of Dispersion Methods and Mechanical Behaviour of Glass Fibre Composites with Embedded Self-Healing Systems

“…During high-velocity impacts, characterised in the range of 300–2500 ms −1 [ 16 , 17 ], the event is so short that the structure has no time to respond in global flexural or shear modes and so damage tends to be localised, taking the form of target penetration. During low-velocity impacts (generally regarded to be at velocities less than 10 ms −1 ), the impactor contact time is long enough for the entire FRP structure to respond to the impact [ 18 ].…”