Governing Equations#

This chapter presents the solution schemes we use for solving variations of the elasticity equation using the finite-element method. In all of our derivations, we use the notation described in Mathematical notation.

Table 1 Mathematical notation#

Symbol

Description

\(\vec{a}\)

Vector field a

\(\mathbf{a}\)

Second order tensor field a

\(\vec{u}\)

Displacement vector field

\(\vec{v}\)

Velocity vector field

\(\vec{{d}}\)

Fault slip vector field

\(\vec{f}\)

Body force vector field

\(\vec{\tau}\)

Traction vector field

\(\mathbf{\sigma}\)

Stress tensor field

\(\vec{n}\)

Normal vector field

\(\rho\)

Mass density scalar field