Materials

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Store material data in HyperX to use in analysis and sizing. Establish sophisticated laminate allowables, bearing-bypass envelopes, and correction factors in a shared database to deploy to team members. Understand how this Material Database fits in the larger goals of HyperX software by reading more here.

About

There are 5 types of Materials available in HyperX, each of which contains their own respective material property requirements and use cases.

Metallics: Used as unstiffened plates, facesheets for sandwich panels, flanges and webs of stiffened panels, and flanges and webs of beams. These Materials can also be used as adhesives for Bonded Joints (e.g. between facesheet and stiffener).

Note

Can be used to represent any general isotropic materials.
Composites: Used for reference by Plies and Laminates to facilitate composite optimization for all of the same concepts as metallics.
Foams: Used as core materials for sandwich panels.
Honeycombs: Used as core materials for sandwich panels.
Adhesives: Used to hold entities together.

All Material Entities, regardless of type, require the following four data categories:

Temperature Independent Data - Values inherent to the material regardless of temperature, such as density, form, basis, etc.
Elastic Data (i.e. Stiffnesses) - Includes normal and shear stiffnesses and Poisson's ratios. These properties are required to determine the elastic response of a panel to the applied load and determine load distribution within the Structure. For example, if an axial load is applied to a hat panel, the elastic properties will determine the deflection of the panel and the corresponding stress in the facesheet, flange, web, and crown.

Stiffnesses are also used in many failure criteria. For example, bending stiffness is the primary input for panel and beam buckling as well as local buckling. Stiffnesses are used to determine crippling strength for stiffener and beam objects and for other stability-related Failure Modes, like sandwich crimping and facesheet wrinkling and dimpling.
Stress/Strain Allowable Data - Inherent material strength/strain limits, for comparison to load to write corresponding margins of safety.

Allowables are the driving quantities for getting reliable analysis and sizing results. In many cases, reasonable allowables are available in public sources such as MMPDS-02 and MIL-HDBK-17. HyperX includes several of these materials in the Database Templates provided with the install. In most cases, especially for composites, allowables are determined from in-house test programs. HyperX allows for company-specific test data and allowables data in the Material Library for use by stress analysts throughout an organization.

All elastic and allowable data are assumed to be temperature-dependent. This definition form was developed based on common material data references, such as MMPDS. Other than basic entities, all other properties are considered to be temperature-dependent and can be added accordingly.
Thermal Properties - E.g. Coefficient of Thermal Expansion.

Create

Creating a Material involves manually generating and defining a Material that does not yet exist in the HyperX Database.

Note

While the property values required may differ, the process of creating a Material is the same for all Material Types.

Option #1: From the Ribbon

Navigate to the Material tab of the Ribbon
Select the desired Material Family and choose 'Create' on the resulting rise-up menu. This will result in a new, blank Material Data Form corresponding to the selected Material Family.
Fill out all required data for the material - including stiffness properties, stress allowables, and thermal data. If the new material corresponds to a material defined in the FEM, and the two definitions are to be linked, be sure to apply the FEM Material ID accordingly.

Tip

To find out what data is required for the chosen Material Family, click 'Save As'. Any necessary data that has not been filled in will be indicated with a red box.
Click 'Save As' to save the new Material to the Database.

Option #2: From the Property Tree

Expand the 'Library' drop-down in the Property Tree to display a list of all possible Material Families.
Right-click on the desired Material Family and select 'Create'. This will result in a new, blank Material Data Form corresponding to the selected Material Family.
Fill out all required data for the material - including stiffness properties, stress allowables, and thermal data. If the new material corresponds to a material defined in the FEM, and the two definitions are to be linked, be sure to apply the FEM Material ID accordingly.

Tip

To find out what data is required for the chosen Material Family, click 'Save As'. Any necessary data that has not been filled in will be indicated with a red box.
Click 'Save As' to save the new Material to the Database.

Option #3: From the Material Library

Open the Material Library corresponding to the desired Material Family...
1. ... by double-clicking on the corresponding node on the Property Tree.
2. ... by selecting 'Library' after clicking the corresponding icon on the Material tab of the Ribbon.
Select 'Create' from the bottom lefthand corner of the Material Library window.
Fill out all required data for the material - including stiffness properties, stress allowables, and thermal data. If the new material corresponds to a material defined in the FEM, and the two definitions are to be linked, be sure to apply the FEM Material ID accordingly.

Tip

To find out what data is required for the chosen Material Family, click 'Save As'. Any necessary data that has not been filled in will be indicated with a red box.
Click 'Save As' to save the new Material to the Database.

Edit

The properties of a given Material can be edited either directly from the Material Form or via Excel spreadsheet.

Important

Any materials that are part of the Database Template in use cannot be edited. These will be set to Read-Only, which will be indicated at the top of each Material Form. To edit these Materials, a new copy of that Material must be created and saved.

To edit a material...

Select the desired Material from the Material Library.
Click 'Edit'.
Edit the data entries in the corresponding Material Data Form.
- All existing data can be edited.
- New rows of data can be added to model temperature dependency.
- Data can be exported to Excel for editing and then brought back with a single click.
Click 'Apply' to save changes to the existing material definition.

Import

New Materials can also be imported into the Database from other locations - rather than manually creating new ones from scratch. HyperX offers several different mechanisms for Material import.

Option 1: Import Material(s) From Another Database

Materials that are defined in another HyperX Database can be imported into the current Database as new Materials.

On the Database tab of the Ribbon, select 'Import Database Data.' Then, select the 'From Database' option in the rise-up menu.
Use the File Explorer to navigate to the Database containing desired Material definitions. Upon selecting a Database, the Database Import Form will be exposed.
Navigate through the various Material Family tabs to select all Materials desired for import.

Tip

There is an option to 'Toggle All' - which will select all Materials to be imported.
Click 'Import' to import all selected Materials into the current Database.

Option 2: Import Material(s) From Excel Spreadsheet

Materials can also be defined via Excel spreadsheet and imported into the Database.

On the Database tab of the Ribbon, select 'Import Database Data.' Then select 'From Excel' on the resulting rise-up menu.
Use the File Explorer to navigate to the Excel file that contains the desired Material definitions. An example spreadsheet, formatted explicitly for import into HyperX, is shown in the screenshot below.

Tip

Rather than trying to create this format manually, export an existing material to Excel. This will supply a 'template' to define new Materials. See Export Materials to Excel.
HyperX will automatically read the selected spreadsheet and identify any Materials that aren't already defined in the Database. Any new Materials will be displayed in their respective Family tabs on the Material Import form. Navigate through the different Material Family tabs to select all Materials desired for import.

Tip

There is an option to 'Toggle All' - which will select all materials to be imported.
Click 'Import' to import all selected Materials into the current Database.

Option 3: Import Material(s) From Finite Element Model

HyperX can read material data directly from FEM material definition. However, in most cases, not all material data required by HyperX analyses will be present in the FEM (FE analysis does not require strength allowables, for example). As such, there is a semi-automated approach during Structure Creation whereby new HyperX Materials are created from FEM material data - but the form is left open for the user to fill in the missing data entities.

This process is further explained here: Import Designs and Materials from FEM

Export

HyperX Materials can be exported to Excel spreadsheets in order to facilitate consistency and collaboration between team members and other software packages. This can be done either from the Database tab of the Ribbon or from the Material Library.

Option 1: Export Materials via the Ribbon

Tip

This option is best for exporting many Materials spanning multiple different Material Families.

On the Database tab of the Ribbon, select 'Export Database Data.'
Navigate through the various different Material Family tabs to select all Materials desired for export.

Tip

There is an option to 'Toggle All' - which will select all Materials to be imported.
Select 'Export'.
Name the file and navigate to the desired folder location. Click 'Okay.'

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About

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Create

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Edit

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Import

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