# Examples#

These examples demonstrate the behavior and usage of DPF-Core.

## Basic DPF examples#

These examples explain the basic concepts of DPF.

Field and field containers overview

Create your own entities using DPF operators

Bring a field’s data locally to improve performance

Use result helpers to load custom data

Scope results over custom time domains

Scope results over custom space domains

Communicate in process or via gRPC

Get material properties from the result file

## Transient analysis examples#

These examples show how to use DPF to extract and plot displacements, stresses, and strains for a transient result.

Transient analysis result example

Choose a time scoping for a transient analysis

Results extraction and analysis from LS-DYNA sources

## Modal analysis examples#

These examples show how to use DPF to extract and manipulate results from modal analyses.

Use Result Helpers to compare mode shapes for solids and then shells

Plot and animate mode shapes with DPF

## Harmonic analysis examples#

These examples show how to use DPF to extract and manipulate results from harmonic analyses.

Multi-harmonic response example

Expand harmonic modal superposition with DPF

## Advanced and miscellaneous examples#

These examples show advanced use cases to demonstrate the high level of workflow customization.

Multi-stage cyclic symmetry using advanced customization

Solve harmonic problem (with damping) using matrix inverse

Average elemental stress on a given volume

Extrapolation method for stress result of a 3D element

Extrapolation method for strain result of a 2D element

Stress gradient normal to a defined node

Pressure vessel analysis according to an ASME standard

Calculate the number of cycles to fatigue failure

Read results from distributed files

Manage the DPF licensing logic using the server context

Use incremental evaluation helper

## File manipulation and input-output examples#

These examples show how to manipulate files, as well as importing or exporting from or to specific formats.

HDF5 export and compare precision

Get reduced matrices and make export

HDF5 export and import operations

## Plotting examples#

These examples show how to use the `ansys.dpf.core.plotter.DpfPlotter`

class.

Review of available plotting commands

Compare results using the plotter

Load case combination for principal stress

Plot results on a specific path

Warp the mesh by a field for plotting

Review of available animation commands

## Examples for postprocessing on distributed processes#

These examples show how to create workflows on different processes (possibly on different machines) and connect them.

Postprocessing of displacement on distributed processes

Create a custom workflow on distributed processes

Distributed mode superposition (MSUP)

Distributed MSUP distributed modal response

Average Stress in distributed Workflows

## Examples of creating custom operator plugins#

These examples show how to create a basic operator plugin or plug-in packages with multiple operators. Plugins wrap your custom operators so that you can use them like native DPF operators.

Create a basic operator plugin

Create a plug-in package with multiple operators

Create a plug-in package that has third-party dependencies

## Averaging examples#

These examples show how to use some of DPF’s averaging operators.

## Mesh operations examples#

These examples show how to manipulate meshes.

Create and display a mesh with polygon and polyhedron elements

Convert nodal coordinates field to local coordinate system

## Cyclic symmetry examples#

These examples show how to post-process cyclic symmetry models.

Expand mesh and results for modal cyclic symmetry

Get base and duplicate sectors (real and imaginary) results for modal cyclic symmetry

Multi-stage cyclic symmetry example

## Fluids examples#

These examples show how to post-process Fluid models.

Compute iso-surfaces on fluid models

## Streamlines examples#

These examples show how to compute and plot streamlines.

Compute and plot 3D streamlines

Compute and plot 2D streamlines