A Simplified Method for Distribution Design of Explosive Rods to Simulate Cosine-Distributed Impulse on Cylindrical/Conical Shell

Abstract:

The cosine-distributed impulsive loads induced by intense soft X-ray radiation are often simulated by explosive rods in laboratory tests. The conventional design method of rods distribution needs a complicated process, by trials or optimization, to ensure the rod number as an integer. This paper proposes a simplified method based on the principle of load discretization and impulse equivalence. It has higher efficiency and more convenience, and can automatically let the rod number be an integer. This study provides an effective design tool for rod-explosive simulation tests of aerospace structures under intense soft X-ray radiation.

• Periodical: Advanced Materials Research (Volumes 108-111)
• Pages: 1039-1042
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.108-111.1039
• Online since: May 2010
• Authors: Yong Jian Mao, Yu Long Li, Han Jun Huang
• Keywords: Design, Explosive, Shell, Soft X-Ray, Structural Response, Test Simulation

References

[1] N. Zhou and D.J. Qiao: Material Dynamics under Pulse Beam Radiation (National Defense Industry Press, Beijing, China, 2002).

[2] Y.J. Mao, H.J. Deng and R.J. He: Structure & Environment Engineering Vol. 30, No. 2 (2003), pp.55-64.

[3] R.L. Bessey and J.C. Hokanson: Simultaneous and Running Impulsive Loading of Cylindrical Shells (AD-A012-268, 1975).

DOI: 10.21236/ada012268

[4] W.G. Rivera, R.A. Benham, B.D. Duggins and T.W. Simmermacher: Explosive technique for impulse loading of space structures (SAND-99-3175C, 1999).

[5] Y.J. Mao, H.J. Deng, Y.L. Li, R.J. He, H.W. Xiao, X.H. Yue, H.Y. Huang, Q. zhou: submitted to International Journal of Modern Physics B (2010).

[6] E.A. Witmer, E.N. Clark and H.A. Balmer: Experimental Mechanics Vol. 7 (1967), pp.56-66.

[7] H.E. Lindberg and J.D. Colton: Sheet Explosive Simulation for Combined Shock and Structural Response (AFWL-TR-69-124, 1970).

[8] E.A. Witmer, R. W-H. Wu and F. Merlis: Experimental Transient and Permanent Deformation Studies of Impulsively Loaded Rings and Cylindrical Panels, both Stiffened and Unstiffened (AD-A779-485, 1974).

[9] R.A. Benham, F.H. Mathews and P.B. Higgins: Application of Light-Initiated Explosive for Simulating X-Ray Blow-Off Impulse Effects (SAND-76-9019, 1976).

[10] H.E. Lindberg and Y. Murray: Calibration and Analysis of the SPLAT (Spray Lead at Target) Impulse Simulation Technique (DNA-TR-81-333, 1983).

[11] S.W. Kirkpatrick and B.S. Hohmes: AIAA Journal Vol. 26 (1988), pp.96-103.

[12] Y.J. Mao, Y.L. Li, H.J. Deng, H.J. Huang: submitted to Acta Mechnica Solida Sinica (2010).