FEM analysis of impact experiments with steel plated concrete walls based on ANSYS/LS-DYNA
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摘要: 运用经典的显式非线性动力分析软件ANSYS/LS-DYNA，分析了1/7.5缩尺飞机模型撞击钢板混凝土墙的冲击实验。选用两种不同的混凝土材料本构模型(Winfrith模型、CSCM模型)模拟混凝土的非线性破坏过程，将钢板混凝土墙的破坏模式以及飞机模型的残余速度等与实验结果进行了对比。结果表明，有限元分析结果与实验吻合较好，且Winfrith材料模型能够更好地模拟混凝土的大应变、高应变率的非线性性能，验证了钢板混凝土墙和飞机材料本构模型的选取以及整个分析方法的适用性和有效性。
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关键词:
- 固体力学 /
- 飞机撞击 /
- 有限元分析 /
- 钢板混凝土墙 /
- ANSYS/LS-DYNA
Abstract: The simulation analysis of the impact test of 1/7.5 scaled aircraft model impacting the steel plated concrete walls is carried out by using finite element code of ANSYS/LSDYNA. Two models of different material (i.e. Winfrith model and CSCM model) are used to simulate the concrete. The comparison analysis of damage profile of walls and residual velocity of aircraft engine between the simulation results and test results is presented. The results indicate that the damage modes of the impact simulations are in agreement with that of the experiment. Furthermore, Winfrith concrete model is better for simulating the nonlinear performance of concrete with big strain and high strain rate than CSCM concrete model. It is verified that not only the selection of the material constitutive models for the steel plated concrete wall and aircraft model but also the entire analysis process is appropriate and effective.-
Key words:
- solid mechanics /
- impact of aircraft /
- FEM analysis /
- steel plated concrete walls /
- ANSYS/LS-DYNA
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图 11 FSC80墙背部钢板的位移曲线
Figure 11. Displacement curves of rear-face steel plate of FSC80 wall
图 15 HSC80墙背部钢板的位移曲线
Figure 15. Displacement curves of rear-face steel plate of HSC80 wall
表 1 数值模拟与实验结果的比较
Table 1. The comparison of numerical simulation results and experimental results
墙类型 方法 db/cm vr/(m·s-1) 破坏类型 最大 残余 引擎 碎片 实验[12] - - 22 58 穿透 FSC60 Winfrith模型 - - 28 59 穿透 CSCM模型 - - 36 51 穿透 离散元法[10] - - 40 65 穿透 实验[12] - - 40 53 穿透 HSC60 Winfrith模型 - - 42 51 穿透 CSCM模型 - - 35 47 穿透 实验[12] 4.3 3.0 0 0 未穿透 FSC80 Winfrith模型 5.9 4.6 0 0 未穿透 CSCM模型 3.2 2.5 0 0 未穿透 离散元法[10] 4.2 - 0 0 未穿透 实验[12] 7.8 7.0 0 0 未穿透 HSC80 Winfrith模型 7.4 5.2 0 0 未穿透 CSCM模型 2.9 2.6 0 0 未穿透 离散元法[10] 8.6 - 0 0 未穿透 
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[1] US Nuclear Regulatory Commission. 10 CFR 50.150 Aircraft impact assessment[S]. Washington, DC: US Nuclear Regulatory Commission, 2009. [2] US Nuclear Regulatory Commission. RG 1.217 Guidance for the assessment of beyond-design-basis aircraft impacts[S]. Washington, DC: US Nuclear Regulatory Commission, 2011. [3] 中国国家核安全局. HAD101/04核电厂厂址选择的外部人为事件[S]. 1989. [4] 中国国家核安全局. HAD101/05与核电厂设计有关的外部人为事件[S]. 1989. [5] Quan X, Birnbaum N K, Cowler M S, et al. Numerical simulation of structural deformation under shock and impact loads using a coupled multi-solver approach[C]//5th Asia-Pacific Conference on Shock and Impact Loads on Structures. Hunan, China, 2003. [6] Heckötter C, Sievers J, Tarallo F, et al. Comparative analyses of impact tests with reinforced concrete slabs[C]//Towards Convergence of Technical Nuclear Safety Practices in Europe. 2010. [7] Abu-Odeh A. Modeling and simulation of bogie impacts on concrete bridge rails using LS-DYNA[C]//10th International LS-DYNA Users Conference. 2008. [8] Kong S Y, Remennikov A M. Numerical simulation of the response of non-composite steel-concrete-steel sandwich panels to impact loading[J]. Australian Journal of Structural Engineering, 2012, 12(3): 211-223. doi: 10.7158/13287982.2011.11465093 [9] Morikawa H, Mizuno J, Momma T, et al. Scale model tests of multiple barriers against aircraft impact: Part 2. Simulation analyses of scale model impact tests[C]//Transactions of the 15th International Conference on Structural Mechanics in Reactor Technology. Seoul, Korea, 1999. [10] Mizuno J, Koshika N, Morikawa H, et al. Investigations on impact resistance of steel plate reinforced concrete barriers against aircraft impact: Part 2. Simulation analyses of scale model impact tests[C]//Transactions of the 18th International Conference on Structural Mechanics in Reactor Technology. 2005. [11] Tsubota H, Koshika N, Mizuno J, et al. Scale model tests of multiple barriers against aircraft impact: Part 1. Experimental program and test results[C]//Transactions of the 15th International Conference on Structural Mechanics in Reactor Technology. Seoul, Korea, 1999. [12] Mizuno J, Koshika N, Sawamoto Y, et al. Investigations on impact resistance of steel plate reinforced concrete barriers against aircraft impact: Part 1: Test program and results[C]//Transactions of the 18th International Conference on Structural Mechanics in Reactor Technology. 2005. [13] Hallquist J Q. LS-DYNA keyword user's manual, Revision 971[M]. Livermore Software Technology Corporation, 2007. [14] Mullapudi T R S, Summers P, Moon H. Impact analysis of steel plated concrete wall[C]//Structures Congress 2012. ASCE, 2012: 1881-1893. [15] Arros J, Doumbalski N. Analysis of aircraft impact to concrete structures[J]. Nuclear Engineering and Design, 2007, 237(12): 1241-1249. http://www.sciencedirect.com/science/article/pii/S0029549306005875 [16] 朱秀云, 潘蓉, 林皋.基于荷载时程分析法的钢筋混凝土和钢板混凝土墙的冲击响应对比分析[J].振动与冲击, 2014, 33(22): 172-177. http://qikan.cqvip.com/Qikan/Article/Detail?id=663071546Zhu Xiu-yun, Pan Rong, Lin Gao. Comparative analysis of impact response with reinforced concrete and steel plate concrete walls based on force time-history analysis method[J]. Journal of Vibration and Shock, 2014, 33(22): 172-177. http://qikan.cqvip.com/Qikan/Article/Detail?id=663071546 [17] NEI07-13 Rev 8P Methodology for performing aircraft impact assessments for new plant designs[S]. 2011. [18] Wu You-cai, Crawford J E, Magallanes J M. Performance of LS-DYNA concrete constitutive models[C]//12th International LS-DYNA Users Conference. 2012. [19] Comite Euro-International du Beton. CEB-FIP model code 1990[M]. Trowbridge, Wiltshire, UK: Redwood Books, 1993. -
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