Metal forming
This problem models the metal forming process known as upsetting. Only a quarter of the problem is modeled because of symmetry. The initial temperature is 20°C. There is no heat transfer to the environment. The temperature change of the body is from conversion of mechanical work into heat through plastic deformation. A thermal time step is used which is 1000 times larger than the mechanical time step, since heat transfer takes place on a longer time scale than the mechanical deformation. Download is available in the download section of this document.
Keywords
Keywords
The used Keywords in alphabetical order.
*BOUNDARY_PRESCRIBED_MOTION_SET *CONTROL_HOURGLASS *CONTROL_SOLUTION *CONTROL_TERMINATION *CONTROL_THERMAL_SOLVER *CONTROL_THERMAL_TIMESTEP *CONTROL_TIMESTEP *DATABASE_BINARY_D3PLOT *DATABASE_TPRINT *DEFINE_CURVE *ELEMENT_SHELL *END *INITIAL_TEMPERATURE_SET *KEYWORD *MAT_PIECEWISE_LINEAR_PLASTICITY *MAT_THERMAL_ISOTROPIC *NODE *PART *SECTION_SHELL *SET_NODE_LIST_GENERATE *TITLE
Reduced Input
Reduced Input
*Node and *Element Cards are removed.
$ Compression of a Cylinder with Conversion of Plastic Work to Heat
$
*KEYWORD
$
$ 1 2 3 4 5 6 7 8
$
$=============================CONTROL DEFINITIONS ==============================
$
*TITLE
upset of a cylindrical part
*CONTROL_SOLUTION
2
*CONTROL_TIMESTEP
0. 0. 0 0. 1.e-04
*CONTROL_THERMAL_SOLVER
1 0 1 1.
*CONTROL_THERMAL_TIMESTEP
0 1. .1
*CONTROL_TERMINATION
1.6
*CONTROL_HOURGLASS
4
*DATABASE_TPRINT
.1
*DATABASE_BINARY_D3PLOT
.1
$
$============================== PART DEFINITIONS ===============================
$
*PART
cylinder
1 1 1 1
$
$============================= SECTION PROPERTIES ==============================
$
*SECTION_SHELL
1 15
0.001 0.001 0.001 0.001 0.
$
$====================== MECHANICAL MATERIAL PROPERTIES =========================
$
*MAT_PIECEWISE_LINEAR_PLASTICITY
1 7830. 210.e+09 .28
0.000E+00 1.000E-02 2.000E-02 5.000E-02 1.000E-01 2.000E-01 4.000E-01 1.000E+00
2.500E+08 2.800E+08 3.000E+08 3.500E+08 4.200E+08 5.000E+08 5.200E+08 5.400E+08
$
$======================== THERMAL MATERIAL PROPERTIES ==========================
$
*MAT_THERMAL_ISOTROPIC
1 7830.
460. 46.
$============================= NODE DEFINTIONS =================================
$
*NODE
$
$============================ ELEMENT DEFINITIONS ==============================
$
*ELEMENT_SHELL
$
$================== DEFINE NODE SET FOR BOUNDARY CONDITIONS ====================
$
*SET_NODE_LIST_GENERATE
1
25 28
*SET_NODE_LIST_GENERATE
2
1 28
$
$======================= TEMPERATURE INITIAL CONDITON ==========================
$
*INITIAL_TEMPERATURE_SET
2 20.
$
$======================= MECHANICAL BOUNDARY CONDITIONS ========================
$
*BOUNDARY_PRESCRIBED_MOTION_SET
1 2 2 1 1.
*DEFINE_CURVE
1
0. 0.
2. -.0099
*end
Figures
Figures
Animated Result
Animated Result
