LIMS 5.0.8. Demo

Download the Windows version of LIMS restricted to 3000 nodes mesh. Note that this release times out as all others (on January 31st 2025).


NOTE: The program install folder defaults to C:\lhome. Change it as you will but DO NOT install into folder containing spaces in path, as the GUI will not find its simulation engine. Most of all, avoid “Program Files” as the access controls on this folder will also prevent you from running examples or editing scripts in default folder.

Files for “Process Modeling in Composites Manufacturing”

Download the archive with files from the Apendix C of “Process Modeling in Composites Manufacturing” by Advani and Sozer.


Files for MEEG 655 “Principles of Composite Manufacturing”

Download the files for the assignments from this course.

Assignment 2 contains LIMS and LEGO files for simulation of a simple linear injection experiment. The “sample” files are just a quad, but “complete” shows the problem definition with racetracking channels and inlet tubing as well as how to work with “zone” files from lego.


Additional LIMS Tools and Samples

A great number of tools were created for LIMS over time, by the LIMS team, other users or students. Some are available. These are described below. If they are made available, there will be download link there. Note that they are without any warranty whatsoever. Utilities are generally developed to accomplish some task and shelved when this is accomplished, regardless of existing issues. If you need something that is not available and you are willing to take a risk, feel free to contact me.


Lego is a simple script-driven mesh. It proved useful to build simple models, but also to deal with cross-section models that are hard to create in other tools because of extreme geometrical aspect ratios and proper element orientation the cross-section model needs. Lego is bundled in LIMS, but there is a newer version available. I will add it to next install, otherwise, it can be downloaded here (zipped binary and .chm help file).



This command line utility converts 2.5D shell LIMS mesh into a 3D solid by extruding shell into given half-space according to element thickness in 2D mesh. This mesh may have very thin element as needed to model highly anisotropic through-the-thickness flow. It allows one to selectively extrude only a certain zone (region) in the mesh and keep the rest as it is or keep the original 2D elements. Number of layers and through-the-thickness permeability may be specified. There is “reverse” utility solid2shell.


This command line utility allows one to “fix” improperly generated mesh by merging duplicate nodes at the same (or close) coordinates and consolidating multiple elements between same nodes into one. LimsUI can do this job as well (same code) but it uses preset values. The command line utility allows better adjustment.


This command line utility allows one to “fix” improperly generated mesh by deleting nodes not connected to any elements. These might be left from the construction geometry. Again, LimsUI can do this job as well (same code) but it uses preset values.

File Converters

There are several converters to convert the following files into LIMS input. What is converted and what is not varies:

I-deas .NEU and Abaqus .INP: These are older routines of what is build-in in GUI LimsUI

Patran .IN: Very old one for 2D shells

.BDF : This one is being developed, but it is far from complete. It concentrates more on 2.5D shells and using laminate and FibersimTM output. There is also simpler AWK script for this conversion which should be easy to modify.

.NEU: Just an AWK script.