Command manual

Command list

COMPONENT_PIPE

Mesh commands
*COMPONENT_PIPE
"Optional title"
coid, pid, N${}_1$, N${}_2$, N${}_3$, csysid, $\alpha_c$
$x_1$, $y_1$, $z_1$, $x_2$, $y_2$, $z_2$, $R_1$, $R_2$
$R_3$, $R_4$

Parameter definition

VariableDescription
coid Component ID
pid Part ID
N${}_1$ Number of elements in axial direction
N${}_2$ Number of elements in circumferential direction
N${}_3$ Number of elements in thickness direction
csysid Local coordinate system ID
default: global coordinates are used
$\alpha_c$ Angle in circumferential direction
default: $360^\circ$ (full pipe)
$x_1$, $y_1$, $z_1$ Face center coordinate 1
$x_2$, $y_2$, $z_2$ Face center coordinate 2
$R_1$ First radius at $\mathbf{x}_1$
$R_2$ Second radius at $\mathbf{x}_1$
$R_3$ First radius at $\mathbf{x}_2$
default: $R_3$=$R_1$
$R_4$ Second radius at $\mathbf{x}_2$
default: $R_4$=$R_2$

Description

This command is used to define a pipe with part ID pid. Note that the smaller of R${}_1$, R${}_2$ (and R${}_3$, R${}_4$) is automatically taken as the inner radius.

Example

Define pipe component

Definition of a pipe with component ID 8 and part ID 40.

*COMPONENT_PIPE
"straight pipe"
8, 40, 5, 12, 1
0.0, 0.0, 0.0, 0.3, 0.0, 0.0, 0.05, 0.07
Simple straight pipe.
Simple straight pipe.
Define a tapered pipe component

Definition of a tapered pipe (half symmetry model) with component ID 1 and part ID 1.

*COMPONENT_PIPE
"tapered pipe"
1, 1, 5, 10, 2, 0, 180.0
0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.4, 0.5
0.5, 0.6
Tapered pipe.
Tapered pipe.
Axi-symmetric blunt projectile impact

Definition of a blunt projectile impacting a circular plate. This is a complete input deck. Note that the projectile and the target are defined as pipes with zero inner radius.

*PARAMETER
# plate thickness
t = 0.02
# plate radius
R = 0.1
# projectile length
Lp = 0.04
# projectile radius
Rp = 0.01
# impact velocity
v0 = 400.0
*TIME
1.0e-4
*COMPONENT_PIPE
1, 1, 20, 1, 100, 0, 10.0
0.0, 0.0, 0.0001, 0.0, 0.0, [%t], 0.0, [%R]
*COMPONENT_PIPE
2, 2, 40, 1, 10, 0, 10.0
0.0, 0.0, [1.01*%t], 0.0, 0.0, [1.01*%t+%Lp], 0.0, [%Rp]
*CHANGE_P-ORDER
ALL, 0, 3, 1
*GEOMETRY_PIPE
1
0.0, 0.0, -0.01, 0.0, 0.0, [2*%t], [2*%Rp]
*MAT_METAL
1, 7800.0, 210.0e9, 0.3, 1
1
*MAT_METAL
2, 7800.0, 210.0e9, 0.3
2
*CURVE
1
0.0, 600.0e6
1.0, 1000.0e6
*CURVE
2
0.0, 1500.0e6
1.0, 10000.0e6
*PROP_DAMAGE_CL
1, 2
6.0e8
*PART
"plate"
1, 1, 0, 0, 0, 0, 8.0
"projectile"
2, 2, 0, 0, 0, 0, 8.0
*CONTACT
ALL, 0, ALL, 0, 0.1, -1.0e15
1
*BC_SYMMETRY
0, 1, 2
*COORDINATE_SYSTEM_FIXED
1, 0.042347, 0.00746695, 0.00799992
*COORDINATE_SYSTEM_FIXED
2, 0.0430003, 4.36654e-8, 0.00899993
*INITIAL_VELOCITY
P, 2, 0.0, 0.0, [-%v0]
*END
Blunt projectile impact.
Blunt projectile impact.