Numerical Investigation Of A Fragment
Protection Structure
Author(s)
Z. Tian & B. Zhang
Abstract
In order to protect people and equipment from being damaged by fragments,
using LS-DYNA software, this paper investigates numerically the processes of
fragments impacting on a structure formed by interlaced double t steel, which is
a common industry product. In the calculations, the steel fragment mass is from
0.3kg to 23kg and the velocities are from 30m/s to 100m/s. The material models
are Johnson-Cook models in which parameters are adjusted through the
comparison with the experimental result. It can be found from the simulations
that two or three double t steel of the protection structure can hold up the
fragments with small mass, high velocity, and different incident angle. For a
large fragment with low velocity, many double t steel of the protection structure
take effect and block the fragment. The conclusion is that the easy-made
protection struc
Keywords
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