Abstract
This work presents a phenomenological model for
estimating projectile penetration into granular
lightweight expanded clay aggregate often known as
Lightweight expanded clay aggregate (LECA). Laboratory
scale penetration experiments in the low-velocity regime
performed using LECA are presented. A penetration model
based on the mass and momentum balances is proposed and
the model parameters are derived from the physical
behaviour of the penetrated material. It was found that
the penetration behaviour predicted by the model agrees
reasonably well with the experimental results for three
cases studied in detail in terms of projectile
deceleration during the penetration and the final
penetration depth as well as for the other cases for
which only measured penetration depths were available.
Although the proposed model results correspond well with
the experiments, further validation and more detailed
modelling of the dynamic effects of the assumed
deformation mechanisms of the penetrated material are
needed.
Original language | English |
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Pages (from-to) | 425-437 |
Journal | Journal of Dynamic Behavior of Materials |
Volume | 2 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2016 |
MoE publication type | A1 Journal article-refereed |
Keywords
- lightweight expanded clay aggregate
- LECA
- penetration experiments
- crushing
- phenomenological model