WIT Press


USING A DISCRETE ELEMENT/FINITE ELEMENT APPROACH TO MODEL IMPACT OF A RIGID PROJECTILE ON CONCRETE AND REINFORCED CONCRETE TARGETS

Price

Free (open access)

Paper DOI

10.2495/SUSI180011

Volume

180

Pages

12

Page Range

3 - 14

Published

2018

Author(s)

ANDRIA ANTONIOU, LAURENT DAUDEVILLE, PHILIPPE MARIN, SERGUEI POTAPOV

Abstract

This paper presents a mixed numerical modelling able to predict the response of reinforced concrete (RC) structures under extreme loadings such as missile impacts. Concrete is modelled using cohesive rigid spherical discrete elements (DE), while steel reinforcement is represented by beam-like finite elements (FE). Concrete-steel DEM/FEM bond model calibrated on pull-out tests is used, which ensures forces transmitting between steel and concrete. This approach is validated through the simulation of two experiments (edge-on-impact test and drop-weight impact) involving hard impacts on plain concrete and a large RC beam. The numerical results are presented and their comparison with the experimental data is discussed.

Keywords

DEM, steel-concrete bond model, hard impact, reinforced concrete, numerical modelling