# structuralProperties

Assign structural properties of material for structural model

**Domain-specific structural workflow is not recommended. New features might not be
compatible with this workflow. For help migrating your existing code to the unified
finite element workflow, see Migration from Domain-Specific to Unified Workflow.**

## Syntax

## Description

`structuralProperties(`

assigns Young's modulus and Poisson's ratio for the entire geometry. Use this syntax
if your model is static and does not account for gravitational and thermal
effects.`structuralmodel`

,"YoungsModulus",`YMval`

,"PoissonsRatio",`PRval`

)

**Tip**

A structural model supports only homogeneous isotropic materials. Therefore, all material properties must be numeric scalars.

`structuralProperties(___,"MassDensity",`

assigns the mass density of the material for the entire geometry, and can include
any of the arguments used in the previous syntax. Specify the mass density of the
material if your model is transient or modal, or if it accounts for gravitational
effects.`MDval`

)

`structuralProperties(___,"CTE",`

assigns the coefficient of thermal expansion for a thermal stress analysis. Use this
syntax if your model is static and accounts for thermal effects.`CTEval`

)

`structuralProperties(___,"HystereticDamping",`

assigns the hysteretic damping parameter that models damping forces counteracting
velocity but independent of frequency. Use this syntax for direct and modal
frequency response analyses.`g`

)

`structuralProperties(___,`

assigns material properties for the specified geometry region.`RegionType`

,`RegionID`

)

returns the material properties object.`mtl`

= structuralProperties(___)

## Examples

## Input Arguments

## Output Arguments

## Version History

**Introduced in R2017b**