CASA Intuition 21.09

The Structural / Civil Engineering Application designed to facilitate an intuitive understanding of the behaviour of space-frames under various load conditions.

Aimed at students and early-career engineers, CASA Intuition enables users to construct detailed 3D models of structural frameworks and visualize both deflections and internal forces through graphical representations. The application also provides normalized numerical data to facilitate comparative analyses across different sections and structural configurations.

Note: The app does not perform actual structural analysis calculations but offers comprehensive tools for visualization and understanding purposes.

Additional information about CASA Intuition can be accessed via its integrated help system and our official website. The app features "Replay Demonstrations" that illustrate its functionalities through step-by-step guides.

Technical Features

• Automated model analysis support.
• Extensive integrated section library, including options compliant with British, European, American, Canadian, Australian, South African, Japanese, and Russian standards. (Property values displayed are normalized for comparison purposes only.)
• Section generator supporting common geometric shapes: open profiles (I/H, channel, Zed, angle, tee), hollow profiles (oval, rectangular), and solid profiles (oval, rectangular). Automatically computes properties such as area, inertia, torsional constant, elastic moduli, and mass. (Values are normalized for comparison.)
• Material library encompassing steel, aluminium, concrete, timber, and glass.
• Flexible connection types at member ends—rigid or pinned.
• Application of various load types including point loads, couples, and trapezoidal loads.
• Support for multiple load cases within a single model.
• Inclusion of gravity (self-weight) loading. (All numerical data are normalized for comparison purposes.)
• Graphical and numerical results covering reactions, deflections, bending moments, shear forces, and bending stresses. Results highlight points of interest along members and display comprehensive data throughout the entire structure. (Data are normalized; actual values are not computed.)

User Interface Features

• Compatible across iPhone, iPod touch, and iPad devices.
• Supports both metric and imperial measurement units.
• Operates through four interactive screens: Geometry, Loading, Results (for model manipulation), and Utilities (for supplementary functions).
• User-friendly modeling: tap to select or edit elements; move or copy geometry; slide nodes along members; modify spans; split members; replicate loads efficiently.
• Intuitive graphical controls allowing rotation, panning, zooming via gestures; dragging nodes and loads to update positions and magnitudes; reading off results by marker drag along members; selecting points of interest for detailed data. Users can measure distances, angles, and areas interactively between model points.
• Numeric input feature: double-tap on data points to enter precise values using an integrated calculator interface.
• Straightforward section library selection: choose by country and shape; view diagrams and properties; for custom shapes, double-tap dimensions to modify; rotate axes by 90° as needed.
• Report generation capability with customizable content layout; on-screen preview; export options including PDF sharing via email or AirPrint compatibility. All reports contain normalized data for comparison purposes.
• Additional utilities include document titling, unit system selection (UK/EU Metric or US Imperial), online help resources, and model load/save functionalities.