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Compression-only 2D members

Definition, application

Compression-only 2D members elements are plate or shell elements with behaviour 'press only'. This behaviour is nonlinear and it is necessary to run " Nonlinear calculation" for taken it into account.

Where to find it

In project data dialog in part 'Functionality' it is necessary to switch ON 'Compression-only 2D members'. After that in properties of 2D members there is new possibility 'Press only'.

How to create new one

In properties of 2D member it is necessary to switch 'FEM nonlinear model' on 'Press only'.

Limitations

1. It is not possible to calculate CDD for these membrane elements.

2. It is not possible to define ribs for these membrane elements.

3. It is not possible to define prestressed tendons for these elements.

4. It is not possible to set physical non-linearity for these elements.

Example

Truss analogy - comparison with "General plasticity"

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