Commands list

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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

Variable
Description
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.