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Strand7 Webnotes

Strand7 Webnotes are a comprehensive online library of resource materials covering Strand7 modelling, application, usage and installation, plus general background and theory of FEA.

Access to the library is available to supported Strand7 users via a secure login and forms part of our Strand7 Support and Maintenance subscription service. To log in you will need your login details, which can be found inside the Strand7 Installation Kit (DVD case). Should you require information about your login details, please email us.

Each Webnote in the library consists of a PDF describing the topic. Most Webnotes also include one or more Strand7 files to help illustrate the practical side.

We aim to continually expand the Webnote library and you will find the latest releases listed in the Recent Additions section. If there is a specific topic that interests you, or you have an idea for a Webnote that you would like to see, please email us.

We welcome your comments and feedback about any Webnotes that you download. We are also interested in hearing from you should you find any errors in them or require further clarification.

Recent Additions

0.6 MB
ST7-1.20.60.3 Applying Pre Strain Attributes in Construction Sequence Analysis
This Webnote explores the handling of the element pre strain attribute in construction sequence (staged) analysis. In a staged analysis, the dimensions of an element at the beginning of a stage may be different to the as modelled mesh dimensions. The "initial" dimension depends on the Morph setting in the element's birth stage and the morphed element dimensions, which in turn affect the amount of contraction or expansion resulting from a pre strain attribute.

2.0 MB
ST7-1.40.50.6 Aligning Orthotropic Brick Axes
This Webnote introduces the method of aligning brick axes in Strand7. Brick axis alignment is essential for orthotropic material definition as well as for the extraction of results in the material axes. It is also convenient for the extraction of results in other coordinate systems, even for isotropic materials.

7.5 MB
ST7-1.40.70.27 ROPS Analysis per ISO 3471-2008
Protection of the operator of earth moving equipment is required in circumstances where vehicle rollover is possible. This Webnote demonstrates the simulation of a Roll-Over Protective Structure (ROPS) physical test according to ISO 3471:2008. There are multiple types or classifications of ROPS; in this Webnote a multi-post ROPS typical of that seen on a backhoe digger is analysed.

1.3 MB
ST7-1.50.10.7 Generating Geometry in Strand7
Strand7 offers a range of tools to help create and manipulate geometry in preparation for automeshing. These tools are not intended as an alternative to a CAD package, however, they offer sufficient functionality to generate various basic geometries from scratch, and more importantly, to make minor additions and modifications to imported CAD geometry - this can often avoid the need to go back to the CAD package to correct unmeshable geometry.

1.0 MB
ST7-1.50.80.12 Importing and Exporting Strand7 Model Data with Spreadsheets
This Webnote examines the exchange of Strand7 finite element model data with a spreadsheet. This method is useful for exchanging model information between Strand7 and other structural analysis software packages for which Strand7 does not offer import/export functionality. The Online Editor is used for this purpose. This discussion focusses on the import of finite element model data into Strand7, although the discussion is also applicable to the export of models from Strand7.

2.3 MB
ST7-1.55.10.14 Linear Buckling Analysis of Flat Panels
This Webnote presents a simple method to analyse and verify the buckling of flat panels using different examples from the theory of elastic stability. Various combinations of in-plane compression, bending and shear loads are investigated.

0.8 MB
ST7-1.60.70.6 Installing User Defined Libraries
Strand7 ships with a number of library files which are accessed through the Strand7 graphical user interface (GUI). For example, when assigning a material property such as steel to an element property type, you are extracting data from a material library file. The libraries and their contents are customisable - they may be edited, deleted, or augmented to produce user defined libraries. This allows you to tailor the data to your needs - either to change the data, or simply to make the data you need more easily accessible.
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