Table of Contents

ELA-TR

Description

Elastic constitutive law for solid elements at constant temperature

The model

This law is only used by TRUSS elements

Files

Prepro: LELATR.F

Availability

Plane stress state YES
Plane strain state YES
Axisymmetric state NO
3D state NO
Generalized plane state NO

Input file

Parameters defining the type of constitutive law

Line 1 (2I5, 60A1)
ILLaw number
ITYPE 5
COMMENT Any comment (up to 60 characters) that will be reproduced on the output listing

Integer parameters

Line 1 (I5)
ISOL = 0 : use of total stresses in the constitutive law
= 1 : use of effective stresses in the constitutive law

Real parameters

Line 1 (2G10.0)
E YOUNG’s elastic modulus
ANU Area of the TRUSS elements

Stresses

Number of stresses

2

Meaning

The stresses are the PIOLA-KIRCHOFF number 2 Normal Force in the TRUSS element.

SIG(1)$N_{PK2}$ at node I
SIG(2) $N_{PK2}$ at node J

N.B. SIG(1) = SIG(2)

State variables

Number of state variables

1

List of state variables

Q(1) =0