LIRA-SAPR 2019

The new version of structural analysis software LIRA-SAPR 2019 is available: analysis, design, simulation of the life cycle of building structures.

April 17, 2019

Thermal Analysis

Transient heat transfer problem analysed in LIRA-SAPR (video)

  • New option to simulate steady-state and transient heat transfer problems. New model type (15) is introduced for this purpose. In this case, nodes of design model will have only one degree of freedom – temperature t.

New model type

New model type

  • New types of finite elements are introduced: one-dimensional, plane and 3D FE for heat transfer analysis. New special finite elements for convective heat transfer are provided to simulate the contact between the surface and environment.
  • New types of loads are introduced: predefined temperature at node, heat flow on the body surface, predefined exterior temperature for convection elements, and three types of transient loads.

New types of nodal loads for heat transfer analysis

New types of nodal loads for heat transfer analysis

Output data for thermal analysis may be presented in tabular and graphical formats: as mosaic & contour plots of temperatures.

Contour plots for distribution of temperatures in the fragment of monolithic floor slab within the thermofiller zone

Contour plots for distribution of temperatures in the fragment of monolithic floor slab within the thermofiller zone

All new FEs of heat transfer problems were verified for the convergence of solution with analytical methods. Test examples will be published in the 'Verification' section (link in Russian).

Documentation

  • 'Report Book' system is enhanced for all new options in LIRA-SAPR 2019:
    • 'Temperature' table for thermal analysis problems;
    • 'Steel' table for input data of steel structure analysis;
    • explanatory notes to the output data of selected reinforcement.


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