The version of MDSolids that you download from this site may be used free-of-charge for a 30-day evaluation period. After 30-days, the unregistered software will cease to operate. To continue using MDSolids, you must purchase a registration code. The purchase of a registration code buys you a license to continue using the MDSolids software.

There are two versions of MDSolids 3.x:

• Student Version: A registration code for the Student Version costs only $25 US. This version includes all of the features included in previous versions of MDSolids plus the following new features.
  • Combined Loadings Module: Explains and illustrates problems involving combined axial stresses, combined normal and shear stresses, and combined axial, shear, and torsion stresses. The module uses 3d rendering and animation to provide a detailed explanation of the effects of combined loadings on typical types of structures and components.
  • Animated explanations: Problems such as punching shear, bolted connections, segmented axial members, and many others are explained visually through the use of 3d rendering and animations. These animations clearly depict failure surfaces, free-body diagrams, and other aspects of basic problems that are difficult to most students to visualize.
  • Determinate Beam Module: Linearly distributed loads have been added to the concentrated load, concentrated moment, and uniformly distributed load types that were previously available.
  • Enhanced screen layout: Many of the screens have been streamlined and updated to make MDSolids easier to use.
  • File Access/Printing/Bitmaps/Excel Output: These features described below are included in five selected modules in the Student Version
    • Truss Module
    • Determinate Beam Diagrams Module
    • Section Properties Module
    • Mohr's Circle Transformations Module
    • Stress-Strain Curve routine
      
      
• Full Version: A registration code for the Full Version of MDSolids costs only $60 US. In addition to the features described above, the Full Version of MDSolids includes:
  • File Access: File Open/Save/Save As/Save All capability is now available. Users may elect to save data from an individual MDSolids module or may save data from an entire session.
  • Printing: Print/Print Form/Print Screen capability has been added to every routine.
  • Bitmaps: Bitmap Capture and Copy to Clipboard capability is available for routines that feature images.
  • Excel Output: Data from the Stress-Strain routine, the Section Properties module, and the General Analysis Module can be saved in Excel spreadsheet format (.xls).
  • Customize Material Lists: Users can create and modify the list of material properties (e.g., Elastic moduli, shear moduli, stress limits, etc.) used by MDSolids.
  • Customize Unit Preference: Users can set a preference for either SI or US units.
    

Your registration code must be entered in the MDSolids program. On the Help menu, you will find an item called "Register MDSolids." Click on this item, and then enter your name and registration code in the dialog boxes. The code will remove the 30-day limitation.