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Results charts

The Charts views provide graphical insight into section behaviour under combined loading. These include interaction diagrams and Moment-Stiffness-Curvature charts.

Interaction diagram​

When you open the Interaction diagram tab, a 3D interaction diagram is displayed showing the relationship between axial force and moment.

You can use the controls below the chart to:

  • Adjust the grid offset
  • Trim the surface at the current cut plane
  • Switch to wireframe view

Load points and status​

Load points applied to the section are shown directly on the interaction surface.

This provides an immediate visual check of section capacity.

Adjusting the cut plane​

You can change the moment angle by:

  • Moving the slider, or
  • Entering a value directly

On the right side, a 2D interaction diagram is displayed.

This 2D diagram is a slice taken at the current cut plane, which is highlighted on the 3D diagram.

Understanding the 2D diagram shape​

The 2D interaction curve may not appear perfectly smooth or symmetrical.

This is because the 3D interaction surface is a faceted approximation, and the 2D diagram represents a direct slice through that surface.

Moment–Moment diagrams​

You can switch to a moment–moment (M–M) diagram by selecting MM under Diagram type.

When in this mode, you can:

  • Adjust the axial force
  • View the corresponding moment interaction behaviour

ULS and SLS surfaces​

Additional surfaces can be displayed by interacting with the legend, including:

  • ULS no-tension surface
  • ULS no-compression surface
  • ULS balanced yield surface
  • SLS cracking surface

The SLS cracking surface indicates whether a load case causes cracking:

  • Load points inside the surface are uncracked
  • Load points outside the surface are cracked

Copying load points​

You can copy the load points from the active 2D chart by selecting Copy data.

  • The points are copied to the clipboard
  • You can paste them into external tools (for example, spreadsheets)
  • Points from all active charts are included, such as ULS and SLS cracking surfaces

More charts​

Under the More charts tab, you can view:

  • Moment–Stiffness-Curvature charts

As with the interaction diagrams, you can adjust:

  • Moment angle, or
  • Axial force

to explore section behaviour under different conditions.

Video overview​

The following video provides a visual overview of the charts views in AdSec:

Oasys AdSec: Results charts

Note
This video provides a visual overview of the Results charts views. It may have been recorded using an earlier version of AdSec, so some details may differ from the version you have installed.