Feasibility Study and Design of Soft-Catcher for Damaged Concrete Debris

Master thesis (2017)

Authors

K.S. Ong Civil Engineering & Geosciences

Contributors

J. Weerheijm (coach)
Matthijs Bakker (graduation committee member)
L.J.M. Houben (graduation committee member)
Faculty
Civil Engineering & Geosciences, Civil Engineering & Geosciences
Copyright: © 2017 Kwee Siang Ong
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Published Date

27-09-2017

Language

English

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Faculty

Civil Engineering & Geosciences

Abstract

In an accidental explosion of ammunition magazine, concrete debris throw hazard is a major safety concern. The current approach to collect explosively-damaged debris after test does not yield representative test data on debris launch condition. This research is initiated to study the possibilities of using polymeric foam material to soft-catch concrete debris, without inducing additional damage. Preliminary design of the soft-catcher are first performed using a modified analytical shock wave model. Numerical analyses using LS-DYNA are subsequently carried out to verify the analytical model assumptions and account the effect of rigid end backing of the soft-catcher. Following then, the debris penetration problem is escalated into 2-D space domain, in order to include the influence of tearing resistances within the soft-catcher. The observed phenomena are eventually translated into design parameters for the soft-catcher.