The result tables of the RF‑DYNAM Pro add-on module do not display the stresses for solids. In order to display the stresses and internal forces, it is necessary to export the results to a load case or a result combination. Then, you can view the results in a load case or result combination as usual.
Question
Is there any option to display the stresses for a solid model after a dynamic time history analysis?
![KB 001879 | Influence of Bending Stiffness of Cables](/en/webimage/049953/3835546/Seil.png?mw=512&hash=83e64fde3c3d0a1d2649d8e64587b93f4ab71876)
![KB 001848 | Timber Column Design as per the 2018 NDS Standard in RFEM 6](/en/webimage/040983/3525158/Timber_Column_for_KB_1848.png?mw=512&hash=8767c3300658d77c253bb7ff632327937a04dd95)
![The Parametric FEM Toolbox is a Grasshopper plugin that is publicly available at https://www.food4rhino.com/app/parametric-fem-toolbox (© Diego APELLÁNIZ)](/en/webimage/034055/3377907/Figure1.jpg?mw=512&hash=5bca67427e02392e39e3a5ecc2b2ba8fcc585c2e)
!["Dashpot" Member Type in RFEM](/en/webimage/006814/1584802/001354-en-png.png?mw=512&hash=5c210d6575799307ef44759e87c2984a8c4f5d20)
The member type 'Dashpot' can be used for time history analyzes in RFEM/RSTAB with the add-on modules RF-/DYNAM Pro - Forced Vibrations and RF-/DYNAM Pro - Nonlinear Time History. This linear viscous damping element considers forces dependent on velocity.
With regard to viscoelasticity, the member type 'Dashpot' is similar to the Kelvin-Voigt model, which consists of the damping element and an elastic spring (both connected in parallel).
![Feature 002843 | Dimensioning with Result Function](/en/webimage/051576/3982510/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
For design objects, you can optionally display sags or extreme results.
![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).