Surface Release
Glossary Term
Entering in RFEM
A surface release can be defined using the menu 'Insert' → 'Model Data' → 'Surface Releases' or using the project navigator data 'Model Data' → 'Surface Releases'. First, select the original surface, which is a basis for the surface release, graphically in the work window by using the 'New Surface Release' dialog box. Then, define a suitable surface release type, that is, in which local directions the objects are released or nonlinearities such as failure for only one direction. Similarly, you can also define inclined releases by means of spring constants. Finally, define the released objects.
Keywords
Surface release Contact Nonlinearity
Reference
Links
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In RFEM 5 and RSTAB 8, it is possible to assign nonlinearities to member end releases. In addition to the nonlinearities ‘Fixed if’ and ‘Partial activity’, you can also select ‘Diagram’. If you select the ‘Diagram’ option, you have to specify the according settings for the activity of the member end release. For the individual definition points, it is necessary to specify the abscissa and ordinate values (deformations or rotations and the according internal forces) that define the release.
![Stress-Strain Curve in the Tension Area According to [1] to Determine Internal Forces and Deformations in Nonlinear Methods](/-/media/Images/website/img/000001-010000/008701-008800/008788.png?la=en&mlid=BEDB75F95C384C80979F601673392F3E&hash=382A68808EA231CCE3ED4905E84351ED41F9475E)
![Stress-Strain Curve on the Tension Side According to [1] for Cross-Section Design in the Ultimate Limit State](/-/media/Images/website/img/000001-010000/008701-008800/008789.png?la=en&mlid=F9D2D35AC2D544D0838DE9AD7C7C619F&hash=E5CF0B3D24F80972843BE62328337D669C2D45A1)
![Stress-Strain Diagram According to [4] for the Compression Zone: a) for the Nonlinear Calculation; b) for the Cross-Section Design](/-/media/Images/website/img/000001-010000/008701-008800/008790.png?la=en&mlid=7B66E8A666184FE1A3030AB873686901&hash=9C6E3B3DF508864F0FE95C93CAF12F417B75E179)
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Depending on stiffness, mass, and damping, structures react differently to wind action.
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Associated Products
Main Program
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
3,540.00 USD
