Feasibility Study and Design of Soft-Catcher for Damaged Concrete Debris
K.S. Ong (TU Delft - Civil Engineering & Geosciences)
Lambertus J. Sluijs – Mentor
J. Weerheijm – Coach
Matthijs Bakker – Graduation committee member
Lambert J.M. Houben – Graduation committee member
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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.