OptiStruct is a proven, modern structural solver with comprehensive, accurate and scalable solutions for linear and nonlinear
analyses across statics and dynamics, vibrations, acoustics, fatigue, heat transfer, and multiphysics disciplines.

The OptiStruct Example Guide is a collection of solved examples for various solution sequences and optimization types and provides
you with examples of the real-world applications and capabilities of OptiStruct.

This section presents nonlinear small displacement analysis examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

This section presents nonlinear large displacement analysis examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

This section presents nonlinear transient analysis examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

This section presents normal modes analysis examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

This section presents complex eigenvalue analysis examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

This section presents thermal and heat transfer analysis examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

This section presents analysis technique examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

The suspension bridge topology is an optimal structure generated under a distributed load. A fine mesh is generated
to simulate the design space and loads are applied. The distributed load forms a single load case.

The air conditioner bracket is an optimal topology structure generated under both linear static stiffness and modal frequency
response. Shell elements are used to ensure that the bracket is manufacturable using a casting process.

Multi-Model Optimization can be used in applications that require optimizing parts of different sizes. This is accomplished
by using the SCALE continuation line on linked DTPL and DSIZE entries in the models on which the scaled design is to be applied.

Multi-Model Optimization is demonstrated in this Excavator example using Topology optimization design variables that are
linked between the two models.

Demonstrates topology optimization of a V-bracket with RADOPT technique, using OptiStruct. RADOPT is Radioss optimization using OptiStruct. The equivalent static load method (ESLM) is used to perform the optimization run here.

Topology optimization of a cylinder block with a bore will be performed. The cylinder block is modeled using first
order solid (Hexa and Penta) elements.

Multi-Material Optimization (MMO) can be used in applications that require optimizing the parts of different materials.
This method offers an initial concept-level look at material placement within the structure, where multiple materials
can be evaluated.

Multi-Material Optimization (MMO) can be used in applications that require optimizing the parts of different materials.
This method offers an initial concept-level look at material placement within the structure, where multiple materials
can be evaluated.

This section presents shape optimization example problems, solved using OptiStruct. Each example uses a problem description, execution procedures and results to demonstrate how OptiStruct is used in shape optimization.

The examples in this section demonstrate how topography optimization generates both bead reinforcements in stamped
plate structures and rib reinforcements for solid structures.

The examples in this section demonstrate how the Equivalent Static Load Method (ESLM) can be used for the optimization
of flexible bodies in multibody systems.

This section presents multiphysic examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

This section presents response spectrum examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

This section presents nonlinear explicit analysis examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

This section presents piezoelectric analysis examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used.

The OptiStruct Example Guide is a collection of solved examples for various solution sequences and optimization types and provides
you with examples of the real-world applications and capabilities of OptiStruct.

OS-E: 0835 Failsafe Topology Optimization of 3D Column

Demonstrates Failsafe topology optimization of a 3D column, using OptiStruct.

FSO divides the structure into damage zones and generates multiple models (equal to the
number of failure zones), wherein each model is the same as the original model minus one
failure zone. In this process, the FSO method is applied by running Topology Optimization
simultaneously for all such generated models and a final design is output which is optimized
to account for all generated models.

Note: If the number of damage zones is large, which
means the number of SPMD domains is high. Such a job typically requires
to be run on multiple nodes with cluster setup.

Model Files

Before you begin, copy the file(s) used in this example to
your working directory.

Conduct a FSO topology optimization of the 2D plate which is undergoing a compression
loading (force applied in negative Z-direction). The design space is shown in green in Figure 1. The column is modeled using first order Hexa elements.

Objective

Minimize the compliance

Constrains

Minimize 30% of the volume

Design Variables

Topology Design Variable

Results

Regular Topology optimization runs may not account for the feasibility of a design in
situations where a section of the structure fails, and the regular topology optimization
design fails even if one column fails. However, with FSO that is not case.