11 



NOTATION 



A An inertia coefficient defined by Equation [52] 



o Radius of a circular plate 



B An inertia coefficient defined by Equation [34a] 



c Speed of sound in a liquid 



E Energy delivered to the plate 



Eu, Total energy transmitted across unit area in a shock wave 



e Napierian base, 2.71 8 



F^ Effective force on the plate. Equation [31a] 



h Thickness of the plate 



/ jpdt or Impulse per unit area 



M Effective mass of the plate, Equation [30] 



Mj Effective mass for action of a baffle. Equation [3'+b] 



Ml Effective mass of liquid following the plate in non-compressive motion, 

 Equation [36] 



m Mass per unit area of the plate 



N Dynamic response factor or load factor. Equation [89] 



p Pressure; especially, pressure at the surface of the liquid 



p Pressure in an incident pressure wave, in open water 



p„ Maximum value of p^ 



p, Excess of pressure above p^ In the liquid 



Pp Total hydrostatic pressure. Including atmospheric pressure, on the face 

 of the plate 



Pg Total hydrostatic pressure, including atmospheric pressure, on the back 

 of the plate 



p^ Net force per unit area on the plate due to stresses 



q Equals a//i or ZTjnT^, Equation [91] 



R Distance from center of a detonated charge 



r Distance along a circular plate measured from its center 



s Distance between two elements of area 



Tj Diffraction time or average time for a sound wave to travel from the edge 

 to the center 



T^ Compliance time or time for an element or a structure to acquire maximum 

 velocity 



Tp Damping time of a plane plate acted on by plane waves, equal to m/pc 



T, Swing time or time for a plate or other structure to swing out to a 

 maximum deflection 



( Time 



U Velocity of propagation of a cavitation edge 



V Velocity 



Vc Velocity of the center 



