1. Discretization#

1.1. Degrees of freedom#

Modeling

Degrees of Freedom (at each vertex node)

AXIS

DX: corresponds to the radial displacement DY: corresponds to the longitudinal displacement

D_ PLAN

DX: move next X DY: next move Y

C_ PLAN

DX: move next X DY: next move Y

1.2. Support mesh for stiffness matrices#

The support cells of the finite elements can be triangles or quadrangles. The elements are iso-parametric.

Models

Mesh

Interpolation

AXIS D_ PLAN C_ PLAN

TRIA3

QUAD4 TRIA6 QUAD8 QUAD9

Linear Bi-linear Quadratic Serendip Bi-Quadratic

1.3. Cargo support mesh#

Models

Mesh

Interpolation

AXIS D_ PLAN

SEG2

Linear or

C_ PLAN

SEG3

Quadratic