MaterialUtilities Class¶

class NXOpen.MaterialUtilities¶

Bases: object

Represents Physical NXOpen.MaterialUtilities class

To obtain an instance of this class, refer to NXOpen.CAE.CaeSession

New in version NX10.0.0.

Methods¶

Method	Description
ConvertStressStrainData	Convert stress strain data between the four types EngineeringStressEngineeringStrain, EngineeringStressEngineeringPlasticStrain, TrueStressLogStrain and TrueStressLogPlasticStrain.
ConvertStressStrainYoungsModulusData	Convert stress strain data between the four types EngineeringStressEngineeringStrain, EngineeringStressEngineeringPlasticStrain, TrueStressLogStrain and TrueStressLogPlasticStrain.

Enumerations¶

MaterialUtilitiesStressStrainData Enumeration

The stress strain data type

Method Detail¶

ConvertStressStrainData¶

MaterialUtilities.ConvertStressStrainData¶

Convert stress strain data between the four types EngineeringStressEngineeringStrain, EngineeringStressEngineeringPlasticStrain, TrueStressLogStrain and TrueStressLogPlasticStrain.

The output stressStrain data will be the same units as the input stressStrain data. The units of young’s modulus should be consistent with the input stressStrain Data.

The algorithm formula for converting from Engineering Strain to Log ( True ) strain is:

Log ( True ) Strain = ln( 1 + Engineering Strain )

The algorithm formulas for converting from Engineering Stress to True Stress are:

True Stress = Engineer Stress *(1 - Poisson’s Ratio * Engineering Elastic Strain - 0.5 * Engineering Plastic Strain )^(-2) Engineering Elastic Strain = Engineering Stress / Young’s Modulus Engineering Plastic Strain = Engineering Strain - Engineering Elastic Strain

The algorithm formulas for converting from “True stress-log strain” and “True stress-log plastic strain” are: Log Elastic Strain = Log Stress / Young’s Modulus Log Plastic Strain = Log Strain - Log Elastic Strain

Signature ConvertStressStrainData(strainData, stressData, youngsModulus, poissionRatio, inputDataType, outputDataType)

Parameters:	strainData (list of float) – the input strain array stressData (list of float) – the input stress array youngsModulus (float) – the input young’s modulus used in converting algorithm poissionRatio (float) – the input poission’s ratio used in converting algorithm inputDataType (`NXOpen.MaterialUtilitiesStressStrainData`) – the input stress-strain data type outputDataType (`NXOpen.MaterialUtilitiesStressStrainData`) – the output stress-strain data type
Returns:	a tuple
Return type:	A tuple consisting of (convertedStrainData, convertedStressData) convertedStrainData is a list of float. the output strain array convertedStressData is a list of float. the output stress array

New in version NX10.0.0.

Deprecated since version NX11.0.0: Use NXOpen.MaterialUtilities.ConvertStressStrainYoungsModulusData() instead.

License requirements: None.

ConvertStressStrainYoungsModulusData¶

MaterialUtilities.ConvertStressStrainYoungsModulusData¶