Rigorous spectral theory for azimuthally dependent source‐excited fields in a fluid in the presence of a thin elastic spherical shell: Formulation and high‐frequency asymptotics

1990 ◽  
Vol 87 (S1) ◽  
pp. S53-S53
Author(s):  
L. B. Felsen ◽  
J. M. Ho
Keyword(s):  
Spherical Shell ◽  
Spectral Theory ◽  
High Frequency ◽  
Elastic Spherical Shell ◽  
Thin Elastic Spherical Shell ◽  
Shell Formulation

Effect of Water Immersion on Reduction of Die Stresses in Explosive Forming

1966 ◽  
Vol 88 (1) ◽  
pp. 111-115 ◽  
Author(s):  
H. Reismann ◽  
W. H. Jurney
Keyword(s):  
Dynamic Response ◽  
Spherical Shell ◽  
Water Immersion ◽  
Large Body ◽  
Shell Surface ◽  
Elastic Spherical Shell ◽  
Forming Technology ◽  
Shell Motion ◽  
Thin Elastic Spherical Shell ◽  
Explosive Forming

This investigation considers the dynamic response of a thin, elastic spherical shell surrounded by a large body of fluid. The blast pressure is applied to the internal shell surface, and three distinct types of blast loading are considered: Decaying exponential, decreasing linear, and pure impulse. The problem considered is related to explosive-forming technology. By comparing shell motion in air with shell motion in water, it is shown that stresses may be substantially reduced by water immersion.

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