FEM MaterialMechanicalNonlinear/ru

Текучий материал

Усиленный материал (бетон)

Верстак "FEM"

FEM Нелинейный механический материал
Системное название
FEM MaterialMechanicalNonlinear
Расположение в меню
Model → Materials → Нелинейный механический материал
Верстаки
FEM
Быстрые клавиши
Нет
Представлено в версии
-
См. также
FEM tutorial

Описание

Creates a nonlinear mechanical material. Currently, only plasticity with simple (isotropic) hardening is available. introduced in version 0.22: Kinematic hardening is also available.

Применение

1. To create a new MaterialMechanicalNonlinear object do the following:
   • Add a Material for solid first and select it.
   • Click the Nonlinear mechanical material button or choose the Model → Materials → Nonlinear mechanical material‏‎ option from the menu.
2. To edit an existing MaterialMechanicalNonlinear object:
   • Select it in the Tree view.
   • Select the material model (isotropic (simple) hardening or introduced in version 0.22: kinematic hardening).
   • Define yield points (stress [MPa] vs plastic strain). The first point must have a zero plastic strain. Press the ... button next to ДанныеYield Points to input the points using a user-friendly list. The syntax is described in the Notes section.

Notes

• In FreeCAD 0.19 and older versions, only 3 yield points can be specified. Since version 0.20 a list of yield points can contain as many as required.
• The syntax should be:

stress_1, 0
stress_2, plastic_strain_2
...

With dot as the decimal separator since that's what CalculiX uses.

For example to define a bilinear model with hardening for S275 steel:

275, 0
490, 0.2

Or, to define perfect plasticity with no hardening for this material:

275, 0

Текучий материал

Усиленный материал (бетон)

Верстак "FEM"

FEM

• FEM Analysis

• Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor

• Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)

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Constraints

• Electromagnetic: Electrostatic potential, Current density, Magnetization

• Fluid: Initial flow velocity, Initial pressure, Flow velocity

• Geometrical: Plane rotation, Section print, Transform

• Mechanical: Fixed, Displacement, Contact, Tie, Spring, Force, Pressure, Centrif, Self weight

• Thermal: Initial temperature, Heat flux, Temperature, Body heat source

• Overwrite Constants: Constant vacuum permittivity

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• Mesh: Mesh Netgen, Mesh GMSH, Mesh boundary layer, Mesh region, Mesh group, Nodes set, Mesh to mesh

• Solve: CalculiX Standard, Elmer, Mystran, Z88; Equations: Deformation, Elasticity, Electrostatic, Electricforce, Magnetodynamic, Magnetodynamic 2D, Flow, Flux, Heat; Solver: Solver control, Solver run

• Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Warp filter, Scalar clip filter, Function cut filter, Region clip filter, Contours filter, Line clip filter, Stress linearization plot, Data at point clip filter, Filter function plane, Filter function sphere, Filter function cylinder, Filter function box

• Utilities: Clipping plane, Remove clipping planes, Open FEM examples; Mesh clear, Mesh display info

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• Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types

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