ANTI-BLAST ANALYSIS OF CELLULAR SACRIFICIAL CLADDING

Ding Yuanyuan; Wang Shilong; Zheng Zhijun; Yang Liming; Yu Jilin

doi:10.6052/0459-1879-14-187

Volume 46 Issue 6

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Chinese Journal of Theoretical and Applied Mechanics > 2014 > 46(6): 825-833. > DOI: 10.6052/0459-1879-14-187 CSTR: 32045.14.0459-1879-14-187

Ding Yuanyuan, Wang Shilong, Zheng Zhijun, Yang Liming, Yu Jilin. ANTI-BLAST ANALYSIS OF CELLULAR SACRIFICIAL CLADDING[J]. Chinese Journal of Theoretical and Applied Mechanics, 2014, 46(6): 825-833. DOI: 10.6052/0459-1879-14-187

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ANTI-BLAST ANALYSIS OF CELLULAR SACRIFICIAL CLADDING

1 CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026, China
2 Mechanics and Materials Science Research Center, Ningbo University, Ningbo 315211, China

Funds: The project was supported by the National Natural Science Foundation of China (11372308, 90916026).

Received Date: June 24, 2014
Revised Date: September 11, 2014

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Abstract

Abstract

The behavior of a cellular sacrificial cladding for blast attenuation was studied by using 1D shock models and 3D cell-based finite element models. Based on a rate-independent, rigid-plastic hardening (R-PH) idealization, a shock model was developed and an equation governing the shock wave propagation in the sacrificial cladding was obtained. The results reveal the shock wave propagation characteristics in the sacrificial cladding. Two parameters, the attached mass and the strength of blasting load, are very important for the cellular sacrificial cladding design. Comparison of the sacrificial cladding structure designs based on the rigid-perfectly plastic-locking (R-PP-L) model and the R-PH model was presented and the applicable conditions of the two shock models were given. Finally, a cell-based finite element model using 3D Voronoi technology was employed to verify the design criteria of the cellular sacrificial cladding structure based on the R-PH model.
- cellular materials,
- sacrificial layer,
- finite element analysis,
- shock wave propagation,
- blast alleviation

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References

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ANTI-BLAST ANALYSIS OF CELLULAR SACRIFICIAL CLADDING