from abaqusConstants import *
from .ClayHardening import ClayHardening
[docs]class ClayPlasticity:
"""The ClayPlasticity object specifies the extended Cam-clay plasticity model.
Notes
-----
This object can be accessed by:
.. code-block:: python
import material
mdb.models[name].materials[name].clayPlasticity
import odbMaterial
session.odbs[name].materials[name].clayPlasticity
The table data for this object are:
- If *hardening*=EXPONENTIAL, the table data specify the following:
- Logarithmic Plastic bulk modulus, λ (dimensionless).
- Stress ratio at critical state, M.
- The initial yield surface size, a0.
- ββ, the parameter defining the size of the yield surface on the “wet” side of critical state.
- KK, the ratio of the flow stress in triaxial tension to the flow stress in triaxial compression. 0.778≤K≤1.0. If the default value of 0.0 is accepted, a value of 1.0 is assumed.
- Temperature, if the data depend on temperature.
- Value of the first field variable, if the data depend on field variables.
- Value of the second field variable.
- Etc.
- If *hardening*=TABULAR, the table data specify the following:
- Stress ratio at critical state, M.
- The initial volumetric Plastic strain, ε_vol^pl∣0, corresponding to pc|0according to the [ClayHardening](https://help.3ds.com/2022/english/DSSIMULIA_Established/SIMACAEKERRefMap/simaker-c-clayhardeningpyc.htm?ContextScope=all) definition.
- ββ, the parameter defining the size of the yield surface on the “wet” side of critical state.
- KK, the ratio of the flow stress in triaxial tension to the flow stress in triaxial compression. 0.778≤K≤1.0.
- Temperature, if the data depend on temperature.
- Value of the first field variable, if the data depend on field variables.
- Value of the second field variable.
- Etc.
The corresponding analysis keywords are:
- CLAY PLASTICITY
"""
# A ClayHardening object.
clayHardening: ClayHardening = ClayHardening(((),))
def __init__(self, table: tuple, intercept: float = None, hardening: SymbolicConstant = EXPONENTIAL,
temperatureDependency: Boolean = OFF, dependencies: int = 0):
"""This method creates a ClayPlasticity object.
Notes
-----
This function can be accessed by:
.. code-block:: python
mdb.models[name].materials[name].ClayPlasticity
session.odbs[name].materials[name].ClayPlasticity
Parameters
----------
table
A sequence of sequences of Floats specifying the items described below.
intercept
None or a Float specifying e1e1, the intercept of the virgin consolidation line with the
void ratio axis in a plot of void ratio versus the logarithm of pressure stress. The
default value is None.This argument is valid only if *hardening*=EXPONENTIAL.
hardening
A SymbolicConstant specifying the type of hardening/softening definition. Possible
values are EXPONENTIAL and TABULAR. The default value is EXPONENTIAL.
temperatureDependency
A Boolean specifying whether the data depend on temperature. The default value is OFF.
dependencies
An Int specifying the number of field variable dependencies. The default value is 0.
Returns
-------
A ClayPlasticity object.
Raises
------
RangeError
"""
pass
def setValues(self):
"""This method modifies the ClayPlasticity object.
Raises
------
RangeError
"""
pass