A fluid with a constant density in a homogeneous gravity field exerts a hydrostatic pressure on its comprehensive container wall according to Pascal's law. This loading can be simulated very efficiently in a load case in RFEM by means of the free rectangular loads.
KB 000481 | Hydrostatic Pressure on Vessel Structures
![Hydrostatic Pressure on Vessel Structure](/en/webimage/010543/2963116/01-en.png?mw=512&hash=65e98cfe859ce35a3e3e9da47a0ef9335401520e)
![Node Between Two Members](/en/webimage/015236/2968617/01_Node_between_2_Points_en.png?mw=512&hash=f7d921141f846f6dee5c6e24e1f49f27dfbd5086)
![Deformations as First Result of FEM Calculation](/en/webimage/008929/581233/KB_1571-01-en.png?mw=512&hash=ac2c4fcf777d6d1e5dd5800b86624ba6fd1a1005)
![Wind Loading](/en/webimage/009529/2419249/01-en-png.png?mw=512&hash=e5b08a40fd9a5a16825be6182b3138f78627561e)
![Feature 002423 | Displaying Results in Solids](/en/webimage/031923/3325382/FE_Solid_EN.jpg?mw=512&hash=d2950a5e2123942fab13aad296e814c67695c955)
The results of solid stresses can be displayed as colored 3D points in the finite elements.
![Improved Calculation Performance by Optimized Consideration of Nodal Degrees of Freedom in RFEM](/en/webimage/015531/2983511/Berechnungsperformance_EN_(1).png?mw=512&hash=ea9bf0ab53a4fb0da5c4ed81d32d53360ab2820c)
The number of degrees of freedom in a node is no longer a global calculation parameter in RFEM (6 degrees of freedom for each mesh node in 3D models, 7 degrees of freedom for the warping torsion analysis). Thus, each node is generally considered with a different number of degrees of freedom, which leads to a variable number of equations in the calculation.
This modification speeds up the calculation, especially for models where a significant reduction of the system could be achieved (for example, trusses and membrane structures).
![Extended Display of Surface Strains](/en/webimage/012851/2635393/N_386_02.png?mw=512&hash=8ca45b89302044b96809c681e2688d15a0f63fe4)
Display extended strains of members, surfaces, and solids (for example, the important principal strains, equivalent total strains, and so on) in the Project Navigator - Results in RFEM as well as in Table 4.0.
For example, you can display governing plastic strains when performing the plastic design of connections with surface elements.
![Export RFEM or RSTAB Models to *.glb or *.glTF Format](/en/webimage/010965/2466101/N_386_03.png?mw=512&hash=148c1c16f3620b9ca170dc77253f6c2830d84b73)
RFEM and RSTAB models can be saved as 3D glTF models (*.glb and *.glTF formats). View the models in 3D in detail with a 3D viewer from Google or Babylon. Take your VR glasses, such as Oculus, to "walk" through the structure.
You can integrate the 3D glTF models into your own websites using JavaScript according to these instructions (as on the Dlubal website Models to Download): "Easily display interactive 3D models on the web & in AR" .