Home
Create Analysis
Create an analysis for your project.
Structural
Buckling Linear
You can create and solve linear buckling problems in structural analysis.

Welcome
What's New
View new features for SimSolid 2024.
Get Started
Learn the basics and discover the workspace.
Tutorials
Discover SimSolid functionality with interactive tutorials.
Interface with External Products
Interfaces that support SimSolid output file format.
Geometry
Information about treatment and properties of geometric entities in SimSolid.
Assembly
Summary of available functionality for defining the properties and behavior of parts in the model.
Connections
Connections are used to define the association of different regions of interest between parts in an assembly.
Create Analysis
Create an analysis for your project.
- Structural
  - Linear Structural Analysis
    Analysis that assumes the model is loaded slowly (static) and stresses do not exceed the yield strength of any part material (linear).
  - Non-linear Structural Analysis
    Three types of non-linear analysis are currently available: non-linear separating contact, geometric non-linear, and material non-linear.
  - Buckling Linear
    You can create and solve linear buckling problems in structural analysis.
  - Multi-loadcases
    You can use Multi-loadcases to run multiple linear structural analyses with common constraints. Linear structural analysis assumes the model is loaded slowly (static) and stresses do not exceed the yield strength of any part material (linear).
  - Sequential
    Sequential analysis is any type of structural analysis performed on a structure under prior loading (also termed preloading or prestressing).
  - Structural Thermal
    Structural analysis linked to steady state, transient thermal, thermal imported, or temperature load can be created using the Structural Thermal Workbench.
- Modal
- Dynamics
  Evaluate your design in real-time using SimSolid dynamics analysis.
- Thermal
  Thermal analysis predicts how thermal effects propagate through the model. Steady state and thermal transient analyses are supported.
- Fatigue
  Fatigue analysis is intended for predicting life of structures under cyclic loading.
Boundary Conditions
Boundary Conditions available for SimSolid.
Post Processing
Run analyses and view a variety of results in SimSolid.
Design Study
Design studies allow you to quickly evaluate and compare the structural performance from different design scenarios.
Verification Problems
Solved verification models.

Buckling Linear

You can create and solve linear buckling problems in structural analysis.

To solve linear buckling, first apply a reference level of loading, $f_{r e f}$ , to the structure.

Then, perform linear static analysis to obtain the stresses needed to form the geometric stiffness matrix, $K$ , corresponding to $f_{r e f}$ . Calculate buckling loads by solving an eigenvalue problem. Not all eigenvalues are required; only a small number of the lowest eigenvalues are normally calculated for buckling analysis.

The lowest eigenvalue $λ_{c r i t}$ is associated with buckling. The critical, or buckling, load is calculated as:

f_{c r i t} = λ_{c r i t} f_{r e f}