[01] Liguang Cai, Nano Infrastructure Research Group, Department of Civil Engineering, University of Mississippi, University, USA. [02] Ahmed Al-Ostaz, Nano Infrastructure Research Group, Department of Civil Engineering, University of Mississippi, University, USA. [03] Xiaobing Li, Nano Infrastructure Research Group, Department of Civil Engineering, University of Mississippi, University, USA. [04] Cole Fowler, Nano Infrastructure Research Group, Department of Civil Engineering, University of Mississippi, University, USA. [05] Alexander H.-D. Cheng, Nano Infrastructure Research Group, Department of Civil Engineering, University of Mississippi, University, USA. [06] Hunain Alkhateb, Nano Infrastructure Research Group, Department of Civil Engineering, University of Mississippi, University, USA.

The ballistic resistance and self-sealing behavior of hydrogenated nitrile butadiene rubber (HNBR) enhanced with polyhedral oligomeric silsesquioxane (POSS) subjected to high speed impact were investigated experimentally and numerically using ANSYS AUTODYN. Both experimental and numerical results showed that the POSS-enhanced HNBR exhibited strong self-sealing properties at both cold temperature and ambient temperature and could dramatically reduce leaking of toxic liquid from a hole in the railcar tank. Close agreements were found between experimental results and simulation results for the ballistic limit of POSS-enhanced HNBR coated and uncoated TC-128 steel plates. Also, the simulation result in terms of the size of hole left in the uncoated TC-128 steel plate was almost the same as the experimental result, while the size of hole left in the POSS-enhanced HNBR coating layer was 155% greater in the simulation result than in the experimental result due to mass erosion. The effects of the thickness of the coating layer on the self-sealing property were also presented in this paper.

Impact, Self-sealing, POSS-enhanced HNBR, AUTODYN, TC-128 Steel

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