Question

What is linear quadrilateral element type in abaqus?

Answer 1

Answer:

Explanation:

This index provides a reference to all of the element types that are available in Abaqus/Standard.

Elements are listed in alphabetical order, where numerical characters precede the letter “A” and two-digit numbers are put in numerical, rather than “alphabetical,” order. Thus, AC1D2 precedes ACAX4, and AC3D20 follows AC3D8.

For certain options, such as contact and surface-based distributing coupling, Abaqus may generate internal elements (such as IDCOUP3D for surface-based distributing coupling). These internal element names are not included in the index below but may appear in an output database (.odb) or data (.dat) file.

AC1D2

2-node acoustic link

AC1D3

3-node acoustic link

AC2D3

3-node linear 2D acoustic triangle

AC2D4

4-node linear 2D acoustic quadrilateral

AC2D6

6-node quadratic 2D acoustic triangular prism

AC2D8

8-node quadratic 2D acoustic quadrilateral

AC3D4

4-node linear acoustic tetrahedron

AC3D5

5-node linear acoustic pyramid

Answer 2

Explanation:

The LST element has six nodes and twelve displacement degrees of freedom. The displacement function for the triangle is quadratic. The procedure to derive the LST element stiffness matrix and element equations is identical to that used for the CST element.