Code_Aster
®
Version
6.4
Titrate:
Modelings
3D
and
PLAN
Accoustics
Date:
24/06/03
Author (S):
O. NICOLAS
Key
:
U3.33.01-D
Page
:
1/4
Instruction manual
U3.3- booklet: Finite elements acoustic
HT-66/03/002/A
Organization (S):
EDF-R & D/AMA
Instruction manual
U3.3- booklet: Finite elements acoustic
Document: U3.33.01
Modelings
3D
and
PLAN
phenomenon
ACCOUSTICS
Summary:
This document describes for modelings
3D
and
PLAN
:
·
degrees of freedom carried by the finite elements which support modeling,
·
the related meshs supports,
·
supported materials and loadings,
·
options of calculations for the elementary matrices and the post processing,
·
nonlinear possibilities as well as the options of the breaking process if they exist.
Modelings
3D
and
PLAN
(Phenomenon:
ACCOUSTICS
) correspond to finite elements acoustic in
formulation pressure (cf [R4.02.01]). Modeling
3D
has voluminal meshs supports, modeling
PLAN
has plane meshs supports.
Code_Aster
®
Version
6.4
Titrate:
Modelings
3D
and
PLAN
Accoustics
Date:
24/06/03
Author (S):
O. NICOLAS
Key
:
U3.33.01-D
Page
:
2/4
Instruction manual
U3.3- booklet: Finite elements acoustic
HT-66/03/002/A
1 Discretization
1.1
Degrees of freedom
Finished element
Degrees of freedom (with each node node)
ACOU_… (3D)
NEAR
: pressure
ACOU_FACE… (3D)
NEAR
: pressure
ACPL… (PLANE)
NEAR
: pressure
1.2
Net support of the matrices of rigidity
Modeling Nets Element
finished
Remarks
3D TETRA4
ACOU_TETRA4
TETRA10
ACOU_TETRA10
PENTA6
ACOU_PENTA6
PENTA15 ACOU_PENTA15
HEXA8 ACOU_HEXA8
HEXA20 ACOU_HEXA20
HEXA27 ACOU_HEXA27
PLAN TRIA3
ACPLTR3
TRIA6 ACPLTR6
QUAD4 ACPLQU4
QUAD8 ACPLQU8
QUAD9 ACPLQU9
1.3
Net support of the loadings
Modeling Nets Element
finished
Remarks
3D TRIA3
ACOU_FACE3
TRIA6
ACOU_FACE6
QUAD4
ACOU_FACE4
QUAD8
ACOU_FACE8
QUAD9
ACOU_FACE9
PLAN SEG2
ACPLSE2
SEG3
ACPLSE3
2
Significance of the symbols
·
corresponds to a functionality available
corresponds to a functionality which could exist but not
currently available
Name of
case-test
corresponds to test implementing the functionality.
////
corresponds to a functionality without significance for the element or
asking a major questioning of the code