Effectiveness Of Advanced Coating Systems For
Mitigating Blast Effects On Steel Components
Author(s)
C. Chen, D. G. Linzell, E. Alpman & L. N. Long
Abstract
The objective of this work is to study the effectiveness of an advanced coating
material, polyurea, as a blast mitigation tool for steel components. The response
of polyurea coated steel components under blast loading is studied using the
explicit LS-DYNA code with appropriate loading time histories supplied using a
computational fluid dynamics (CFD) code developed at Penn State University,
PUMA2 (Parallel Unstructured Maritime Aerodynamics-2).
Results presented from this ongoing research study are related to an
application of polyurea onto armor grade steel plates and an examination of
resulting failure modes and governing design parameters. Failure modes
examined herein consist of fracturing in the polyurea/steel composite structure.
Effects of thicknesses and locations of the polyurea on the blast mitigation are
also studied. Explanations of selected strain-rate dependent material models for
the steel and polyurea are provided. CFD blast simulations using PUMA2 are
described and validated. Results obtained from numerical studies completed to
date show that bare steel plate experiences severe fracturing and fragmentation
under prescribed blast loading while polyurea coated plates are able to sustain
prescribed pressures without fully fracturing.
Keywords: polyurea, armor steel, blast, finite element, computational fluid
dynamics.
Keywords
polyurea, armor steel, blast, finite element, computational fluid
dynamics.
Related Book
Other papers in this volume
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