Granta Material News, May 2012


Tip 1: Finding and comparing individual grades for a generic composite in MaterialUniverse, using Firehole Composites

In last month's tips, we identified ‘Epoxy/HS carbon fiber’ as a candidate for a lightweight stiff panel, by performing a material selection project using MaterialUniverse. But how do we identify individual grades?

Details of commercially available grades for this type of composite can be accessed within CES Selector via the Firehole Composites data module. There are links to this data from the MaterialUniverse records: for example, the Epoxy/HS carbon fiber datasheet in MaterialUniverse links to 129 related grades in ‘Firehole Composites'. But which is best?

In a new project using ‘Firehole Composites – All grades’, we can plot a chart of ’Tensile modulus e11' vs ‘Tensile strength +s11’:

A Tree Stage makes it possible to filter based on links to the ‘Epoxy/HS carbon fiber’ record in the MaterialUniverse. 

Tree Stage


By ranking on ‘Tensile modulus e11’ the highest stiffness grades can be identified.

It is also possible to add additional constraints, for example, to ensure that the testing conditions were 'Room Temperature Dry', that the material is commercially availability in Europe, and that confidence in the data quality is known to be above average. The graph below shows the 11 composite grades which remains when you set:

  • Tested condition = Room Temperature Dry (RTD)
  • Material status = Commercial: Active, Europe
  • Data rating = 3 or 4

Adding additional constrainst

Finally, we can compare the properties of some of these materials to those of the original reference material. Select those materials using the check boxes in the results window (as shown in the figure above), and open the Comparison Report. Significant differences between the materials will be highlighted.

Comparison Report

To learn more about the Firehole Composites dataset, visit the data module pages 


Tip 2: How to find equivalent plastic grades using GRANTA MI:Substitute and the CAMPUS database

In this excerpt from a recent web seminar, Granta's Ben Meyer provides a case study on the identification of equivalent plastic grades using a combination of software (the newly released GRANTA MI:Substitute tool) and data (in this case, the CAMPUS plastics.)

The case study shows how this powerful combination of expert tools and specialist data can be applied to the common problem of identifying an equivalent substitute for unrecognized grade on a legacy drawing—including an analysis of any potential issues which might arise as a result of such a substitution. It includes a look at the various reporting options available within MI:Substitute, such as the 'nearness report' and 'potential issues report'.

Launch video 

  watch now..


Tip 3: Using Excel to quickly create new layouts for schemas in GRANTA MI:Admin

The structure of any GRANTA MI database is captured in its schema, which defines the types of data that are to be stored, the relationships between them, and the operations that can be performed on objects in the database. This tip was first shared at last month's German-language User Group Meeting, where it was well received by those involved in modifying schema using GRANTA MI:Admin.

Working with an existing set of attributes in the schema window, an admin can highlight a selection of attributes which they wish to modify (using CTRL-click). These can be copied (right-click, and select COPY). The selected rows of the attribute table in MI:Admin can then be pasted directly into Excel, as shown below:

By inserting a new column to the left of the data in Excel, the new layout can be quickly put together. New headings can be added, in this case 'Project Details', Specimen Details', 'Ultimate Results', and 'Young's modulus', next to the attributes that should fall under each category:

Select the first two columns, and copy them.

Back in GRANTA MI, open a new layout, and press the paste button (highlighted green in the image below). This will automatically create the desired structure, with the required attributes under each of the headings.