ElasticMembranePlateSection

ElasticMembranePlateSection(user_name: str = 'Unnamed', *, E: float, nu: float, h: float, rho: float)

Bases: Section

Linear elastic section for shell and plate elements.

This section type represents a homogeneous elastic material that resists both membrane (in-plane) and plate (out-of-plane bending) actions. It is parameterized by material moduli and the section thickness.

Tcl form

section ElasticMembranePlateSection <tag> <E> <nu> <h> <rho>

Note

This section is ideal for modeling elastic slabs, diaphragms, and shear walls where nonlinear behavior is not expected.
rho is the mass density per unit volume.

Tip

Use this section with ShellMITC4 or ShellDKGQ elements for structural analysis of 2D surfaces.

Example

from femora.core.model import Model
import femora.components.section.shell  # noqa: F401

model = Model()
sec = model.section.shell.elastic_membrane_plate(
    user_name="SlabSection",
    E=3600.0,
    nu=0.2,
    h=8.0,
    rho=0.00015,
)
print(sec.tag)

Create an ElasticMembranePlateSection with validated constants.

Parameters:

Name	Type	Description	Default
`user_name`	`str`	Unique identifier for the section.	`'Unnamed'`
`E`	`float`	Young's modulus of the shell material.	required
`nu`	`float`	Poisson's ratio.	required
`h`	`float`	Thickness of the shell.	required
`rho`	`float`	Mass density (mass per unit volume).	required

Raises:

Type	Description
`ValueError`	If any parameter is not numeric, if E or h are non-positive, if nu is not in [0, 0.5), or if rho is negative.