Commands list
-
- EOS_GRUNEISEN
- MAT_BB
- MAT_BERGSTROM_BOYCE
- MAT_CABLE
- MAT_CERAMIC
- MAT_CONCRETE_2017
- MAT_CONCRETE_2018
- MAT_CONCRETE_2021
- MAT_CREEP
- MAT_ELASTIC
- MAT_FABRIC
- MAT_FABRIC_ISOTROPIC
- MAT_FLUID
- MAT_FOAM
- MAT_FORMING
- MAT_FORMING_R
- MAT_GRANULAR_CAP
- MAT_HJC_CONCRETE
- MAT_HOEK_BROWN
- MAT_HOT_FORMING
- MAT_HSS
- MAT_JC
- MAT_JC_FIELD
- MAT_JH_CERAMIC
- MAT_LEE_TARVER
- MAT_LIBRARY
- MAT_METAL
- MAT_MMC
- MAT_MMC_OST
- MAT_MM_CONCRETE
- MAT_MOONEY_RIVLIN
- MAT_MULTILAYER_ORTHOTROPIC
- MAT_OBJECT
- MAT_ORTHOTROPIC
- MAT_POWDER_BURN
- MAT_REBAR
- MAT_RIGID
- MAT_USER_X
- MAT_VISCOUS_FOAM
- MAT_VISCO_PLASTIC
- MAT_YEOH
- MAT_ZA
- PROP_DAMAGE_BRITTLE
- PROP_DAMAGE_CL
- PROP_DAMAGE_CL_0_45_90
- PROP_DAMAGE_CL_ANISOTROPIC
- PROP_DAMAGE_CL_REGULARIZE
- PROP_DAMAGE_HC
- PROP_DAMAGE_IMP
- PROP_DAMAGE_IMP_ISO
- PROP_DAMAGE_JC
- PROP_DAMAGE_JC_REGULARIZE
- PROP_DAMAGE_STRAIN
- PROP_THERMAL
Third-party add-ons
"Optional title"
pid, mid, eosid, $h$, $\alpha_{max}$, $\Delta t^{erode}$, $\varepsilon_{geo}^{erode}$, $\varepsilon_v^{erode}$, $N_{perode}$, $R_{perode}$, $\Delta t_{perode}$
Parameter definition
| Variable | Description |
|---|---|
| pid | Unique part identification number or range of parts |
| mid | Material identification number |
| eosid | Equation-of-state identification number |
| $h$ | Shell thickness (only used for mass calculation, not in contact) or rebar diameter |
| $\alpha_{max}$ | External element face smoothing angle |
| $\Delta t^{erode}$ | Time step size below which elements are eroded |
| $\varepsilon_{geo}^{erode}$ | Effective deviatoric geometric strain above which elements are eroded |
| $\varepsilon_v^{erode}$ | Volumetric strain above which elements are eroded |
| $N_{perode}$ | Number of particles (used to replace eroded elements with discrete particles) |
| $R_{perode}$ | Particle radius (used to replace eroded elements with discrete particles) |
| $\Delta t_{perode}$ | Life span of particles |
Description
The command is used to assign properties to a part or to a range of parts. Surface smoothing is applied if the angle between the normal vectors of two adjacent higher order external faces is smaller than $\alpha_\mathrm{max}$. Part commands can be assigned a title. The title shows up in part.out and in the part list in IMPETUS Afea Solver GUI.
An element is eroded if its critical time step drops below $\Delta t^{erode}$, if the effective deviatoric geometrical strain $\varepsilon_{geo}$ reaches $\varepsilon_{geo}^{erode}$ in at least one integration point, or if the volumetric strain exceeds $\varepsilon_v^{erode}$. The effective deviatoric geometric strain is defined as:
$\displaystyle{ \varepsilon_{geo} = \sqrt{ \frac{2}{3} \boldsymbol{\varepsilon}_{dev} : \boldsymbol{\varepsilon}_{dev} }}$
where $\boldsymbol{\varepsilon}_{dev}$ is the deviatoric strain tensor. Note that elements can also be eroded at material failure if setting the erosion flag to 1 in the damage property command.
$N_{perode}$ is specified if eroded elements are to be replaced by discrete particles. With this option activated it is also necessary to define the PARTICLE_DOMAIN command.
Example
PART
The following input assigns the material with ID 100 to all parts with ID's in the range 1 to 5 and to part 14.
"this is a part title"
[1..5, 14], 100
