[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.12989/cac.2012.9.1.021

A numerical study on the damage of projectile impact on concrete targets

Lu, Gang (Shaw Stone & Webster Nuclear)
Li, Xibing (School of Resources and Safety Engineering, Central South University)
Wang, Kejin (National Concrete Pavement Center, Iowa State University)

Publication Information

Computers and Concrete / v.9, no.1, 2012 , pp. 21-33 More about this Journal

Abstract

This paper presents the numerical simulation of the rigid 12.6 mm diameter kinetic energy ogive-nosed projectile impact on plain and fiber reinforced concrete (FRC) targets with compressive strengths from 45 to 235 MPa, using a three-dimensional finite element code LS-DYNA. A combined dynamic constitutive model, describing the compressive and tensile damage of concrete, is implemented. A modified Johnson_Holmquist_Cook (MJHC) constitutive relationship and damage model are incorporated to simulate the concrete behavior under compression. A tensile damage model is added to the MJHC model to analyze the dynamic fracture behavior of concrete in tension, due to blast loading. As a consequence, the impact damage in targets made of plain and fiber reinforced concrete with same matrix material under same impact velocities (650 m/s) are obtained. Moreover, the damage distribution of concrete after penetration is procured to compare with the experimental results. Numerical simulations provide a reasonable prediction on concrete damage in both compression and tension.

Keywords

concrete; material model; numerical simulation; projectile penetration;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)
Times Cited By SCOPUS : 0

Reference
Cited By KSCI

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