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Table of Symbols
Ai | Tributary area of a liquid free surface node projected in the horizontal plane. |
or | Linear strain-displacement matrix. |
Nonlinear strain-displacement matrix. | |
Solid domain damping matrix. | |
Liquid-solid interaction matrix. | |
Solid-liquid interaction matrix. | |
Liquid-free surface interaction matrix. | |
Constitutive matrix. | |
External force/discharge vector. | |
Internal force/discharge vector. | |
and | Interface and external body forces, respectively. |
Fn and Ft | Normal and tangential contact forces, respectively. |
g | Acceleration of gravity. |
Ground motion vector. | |
Vector of liquid free surface heights. | |
H | Tank height. |
Element Jacobian matrix. | |
, and | Solid, liquid and free surface element stiffness matrices, respectively. |
Contact/constraint matrix. | |
lx | Projected width of liquid element. |
L1, L2 and L3 | Nondimensional area coordinates. |
Unit vector normal to the element face. | |
Ni | Shape function at node i. |
Liquid element face mass matrix. | |
Structural mass matrix. | |
P | Liquid total pressure. |
Contact penetration vector. | |
Lamina transformation matrix. | |
Nodal position vector. |
R | Radius of a cylindrical tank or base width of a rectangular tank. |
and | Residual vectors of the dynamic and kinematic conditions, respectively. |
Residual vector of liquid domain nodes. | |
Ta | Tributary surface area of a solid domain node. |
, and | Nodal displacement, velocity and acceleration vectors, respectively. |
Transformed displacement vector. | |
Fiber direction. | |
vn and | Liquid and solid normal velocity at a solid-liquid interface, respectively. |
Velocity of a fluid particle. | |
Velocity of a fluid particle relative the fluid mesh. | |
and | Top and bottom nodal coordinate vectors, respectively. |
x', y' and z' | Transformed lamina coordinate system. |
Liquid domain boundary. | |
Free surface boundary. | |
Liquid flexible boundary. | |
Nodal rotational vector. | |
Lagrange multipliers vector. | |
and | Free surface damping parameters. |
Energy functional. | |
and | Solid and liquid domains, respectively. |
and | Velocity potential function and vector, respectively. |
Laplacian differential operator. | |
Gradient differential operator. | |
, and | Element local non-dimensional coordinates. |
and | Solid and liquid mass densities, respectively. |
Stress and strain vectors, respectively. |