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# OpenLSTO | ||
**Open Source Code for Level Set Topology Optimization** | ||
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OpenLSTO is an open-source software for level set based structural topology optimization, written in C++, developed and Maintained by researchers at UC San Diego and Cardiff University. | ||
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The topology optimization method deals with the problem of determining the optimal distribution inside a design domain in order to obtain the best structural performance. Level Set Method was originally developed as a mathematical tool for tracking the motion of interfaces. Its natural handling of topological changes coupled with a clear and smooth interface representation led to its use for structural topology optimization. | ||
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This first full release implements the M2DO lab’s level set topology optimization method to solve the problems of minimizing compliance (maximizing stiffness) under a volume constraint and minimizing stress under a volume constraint in 2D and 3D design domains. A hole nucleation algorithm for the compliance problem is also included. While OpenLSTO has been designed with ease of installation and use in mind, some third-party packages have been used in order for the code to be able to handle more complex problems. | ||
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The level-set module of this software, M2DO_LSM, was adapted from code written by [Lester Hedges](https://github.com/lohedges/slsm), which can be found [here](https://github.com/lohedges/slsm). | ||
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## Installation | ||
- Download | ||
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To clone the repository to the local machine,(git client) | ||
```git clone https://github.com/M2DOLab/OpenLSTO.git``` | ||
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<!--- | ||
The Zip file is also available with the following static link: | ||
[Download link]() TODO: include link once added to website | ||
---> | ||
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- CLI environment | ||
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In general, all OpenLSTO execution occurs via command line arguments within a terminal. For Unix/Linux or Mac OS X users, the native terminal applications are needed. | ||
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- Execution | ||
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Go to the relevant folder under projects to run a specific module, e.g to compliance minimization: | ||
> cd projects/compliance | ||
Compile & Build: | ||
> make main | ||
Execution | ||
> ./bin/a.out | ||
Clean existing compilation files: | ||
> make clean | ||
clean existing object files: | ||
> make clean_obj | ||
clean existing output files: | ||
> make clean_results | ||
- External dependency | ||
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Users of OpenLSTO need a data visualization tool to post-process solution files. The software currently supports .vtk output format natively read by [*ParaView*](https://www.paraview.org/). | ||
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## Licensing | ||
OpenLSTO is available for download under the [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) license. Please refer to the License page for terms and conditions. | ||
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## Contributors | ||
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[Prof. Hyunsun Alicia Kim](http://m2do.ucsd.edu) (UCSD, Cardiff U.) | ||
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Dr. Sandilya Kambampati (UCSD) | ||
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[Dr. Lester Hedges](http://lesterhedges.net) | ||
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Dr. Zongliang Du (UCSD) | ||
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Dr. Renato Picelli (Cardiff U.) | ||
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Dr. Scott Townsend (Cardiff U.) | ||
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Dr. Xiao-Yi Zhou (Cardiff U.) | ||
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Dr. Hayoung Chung (UCSD) | ||
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Dr. Eliana Bortot (UCSD) | ||
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Ms. Carolina Jauregui (UCSD) | ||
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Mr. Andreas Neofytou (Cardiff U.) | ||
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Mr. Douglas de Aquino Castro (UCSD) |
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