Reinforced concrete perforation and penetration simulation using AUTODYN-3D

被引:70
作者
Tham, CY [1 ]
机构
[1] Inst High Performance Comp, Computat Mech Div, Singapore 117528, Singapore
关键词
hydrocode; projectile; reinforced concrete; perforation; constitutive model;
D O I
10.1016/j.finel.2004.08.003
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
3D hydrocode simulation on the perforation and penetration of reinforced concrete target has been performed. The simulation aims to examine the influence of the following constitutive models for concrete on a projectile's residual velocity: (1) constant-yield strength (2) pressure-dependent yield strength (3) pressure-dependent yield strength +fracture damage+ strain-rate hardening. In the simulation, steel ogival-nose projectile with a diameter of 25.4 mm and a mass of 0.5 kg is fired against 406.4 x 406.4 x 178 mm reinforced concrete target with striking velocity ranging from 300 m/s to 1000 m/s. The results obtained from the simulation are compared with experimental residual velocities and post-test damage results. The result from the constitutive model that includes strain-rate and damage with a pressure-dependent yield surface shows relatively good agreement with experimental residual velocities. The damage contours at the impact and exit surface from the simulation are also consistent with the post-test damage results. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:1401 / 1410
页数:10
相关论文
共 7 条
[1]  
*AUTODYN, 1998, AUTODYN THEOR MAN RE
[2]  
CHEN EP, 1994, SIMULATION CONCRETE
[3]  
CHEN EP, 1993, ADV NUMERICAL SIMULA, V171, P181
[4]   PERFORATION OF CONCRETE SLABS WITH 48-MPA (7-KSI) AND 140-MPA (20-KSI) UNCONFINED COMPRESSIVE STRENGTHS [J].
HANCHAK, SJ ;
FORRESTAL, MJ ;
YOUNG, ER ;
EHRGOTT, JQ .
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 1992, 12 (01) :1-7
[5]  
Hancock S, 1979, PISCES 2DELK APPL NO
[6]  
REIDEL W, 1999, P 9 INT S INT EFF MU, P315
[7]   A strain-rate-dependent concrete material model for ADINA [J].
Tedesco, JW ;
Powell, JC ;
Ross, CA ;
Hughes, ML .
COMPUTERS & STRUCTURES, 1997, 64 (5-6) :1053-1067