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Oasys PRIMER is the pre-processor designed to make preparation and modification of LS-DYNA models as quick and as simple as possible.





With support for every LS-DYNA keyword, you can read and write models with the confidence that no data will be lost or corrupted. The Oasys PRIMER user interface is designed specifically for LS-DYNA – with no compromises – giving you convenient access to a range of powerful pre-processing tools.

Our users choose Oasys PRIMER due to the following reasons:

  • Reliability of data security
  • Quickly find and fix modeling errors before LS-DYNA is started
  • This saves CPU and also working time
  • Easy and quick access of all LS-DYNA data, and a quick understanding of the model structure
  • Special tools, such as:
    • Generation of spotwelds
    • Folding of AirbagsSeatbelt fitting
    • Mechanism (for example, for Seat adjustability)Swapping of parts etc.
  • Primer is easy to learn and easy to use
  • Typically, time for assembly, modifications and errors is greatly reduced with Oasys PRIMER
  • The proportion of error-free LS-DYNA runs is increased
  • The model can be configured so that multiple users can work on different components in parallel

Oasys PRIMER 19.1

Although primarily a bug fix release, this latest version does have an important addition:
CORA & ISO 18571  

Included with T/HIS 19.1 as a JavaScript is a new correlation tool that implements calculations according to CORA[1] and ISO 18571[2] methods. 

You can use the T/HIS CORA tool to compare your LS-DYNA simulation results against other simulations, or against physical test data. 

The CORA and ISO 18571 correlations can also be automated via the T/HIS JavaScript API. 


For more information on the new features included in Oasys 19 – please see here.

Oasys 19.1 release notes

For 19.1 support for reading JT files in PRIMER has been removed. 

Note also for models with *ELEMENT_MASS_PART_SET which use *SET_PART_COLLECT PRIMER was not reporting the model mass correctly, omitting the mass of the *ELEMENT_MASS_PART. This has been corrected for 19.1. For other bugs that have been fixed, please see the release notes. 

Oasys 19.1 is available for 64 bit architectures, on both Windows and Linux. 

The software can be downloaded here.

Full release notes outlining the enhancements and bug fixes can be downloaded here.

PRIMER Version 17.0

This new version of the software has exciting new features and updates within PRIMER, D3PLOT, T/HIS, REPORTER and SHELL, including:


    • A new user interface giving a modern look and feel
    • Improved speed and performance
    • A more integrated suite of products
    • More expert tools and functionality
    • Use of a new licensing platform (LM-X) for increased security

Version 17.0 is available for 64 bit architectures on both Windows and Linux.


PRIMER Version 16.0

Download Release Notes

Download New Features

Download Installation Guide (Windows)

Download Installation Guide (Linux)

Download PRIMER Manual

Download PRIMER 16 JavaScript API Manual