Download of Dlubal SHAPE-THIN 7.5 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The Dlubal SHAPE-THIN installer is commonly called Duenq64.exe or Duenq_Alone.exe etc.
The program lies within Photo & Graphics Tools, more precisely 3D Design. This software was originally designed by Dlubal Software. The most popular version among the software users is 7.5. This PC software is compatible with Windows XP/Vista/7/8/10/11 environment, 32-bit version.
From the developer:
Dlubal SHAPE-THIN is a program that calculates the cross-section properties for thin-walled sections of any shape and determines their stresses. The program allows you to design models of the cross-section via elements, sections, arcs and point elements, it contains an expandable library of material properties, yield strengths and limit stresses.
You may want to check out more software, such as Dlubal RSTAB 7 or Dlubal SHAPE-MASSIVE, which might be similar to Dlubal SHAPE-THIN.