Multilayer Surfaces (such as Laminate, CLT) for RFEM 6
Definition of Multilayer Surfaces, Such as Laminate Surfaces or Cross-Laminated Timber (CLT)
The Multilayer Surfaces add-on allows you to define multilayer surface structures. The calculation can be carried out with or without the shear coupling. A flexible composition of layers (using surface releases) as well as a coupling of solid elements consisting of gas, for example, is possible.
A local overall stiffness matrix is created from a user-defined layer structure. The add-on is suitable, for example, for the definition of cross-laminated timber elements, textile reinforced concrete, insulating glass panes, fiber-reinforced plastic, etc. The design (currently being developed) is carried out in add-ons such as Timber Design, Concrete Design, Stress-Strain Analysis.
- Flexible definition of different layer compositions
- High efficiency due to few entries required
- Flexibility due to detailed setting options for basis and extent of calculations
- Based on the selected material model and the layers contained, RFEM generates a local overall stiffness matrix of the surface.
The data specified in the Multilayer Surfaces add-on regarding materials, load combinations, and result combinations must comply with the design concept of the standard. The material library already contains the relevant materials. RFEM allows for the automatic generation of load and result combinations in accordance with the standard. It is also possible to create the combinations manually.
The structure of layers forming the basis for the stiffness calculation can vary. You can adjust the parameters defined by the selected material model according to your individual needs. In this way completely free selection when generating the stiffnesses is provided.
The limit stresses of each layer are defined by the selected material. It is possible to adjust the values by user-defined specifications. The composition of layers is assigned as a thickness type to any surface.
The stiffnesses contain all design check formulas including standard references, so that the design checks can be precisely traced.
All input and result data are part of the RFEM printout report. You can select the report contents and extent specifically for the individual design checks.
The support of the cross-laminated timber panel deserves special attention.
- How does the "Orthotropic Plastic" material model work in RFEM?
- Why are the stresses of the 90° orientation not displayed for a layer with the orthotropy direction 90° for σb,90 in RF‑LAMINATE?
- Which Dlubal Software programs can I use to calculate and design timber structures?
- Which add-on modules and programs do I need for laminate and sandwich structures as well as cross-laminated timber (CLT)?
- What options are available for the serviceability data in RF‑LAMINATE to calculate the local deformation uz,local applied in the design?
- Is it possible to design timber structures in RFEM or RSTAB?
- Why is it not possible to design any LVL material according to the SIA 265 standard in RF‑/TIMBER Pro?
- How is it possible to display the library of RF‑LAMINATE? We would like to check this is up to date.
- How is the coupling between the individual layers controlled in the RF‑LAMINATE add-on module?
- Can I use surface releases to separate two overlapping surfaces?