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Fused Filament Fabrication
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To 3D printing a photoelastic sample an other option exist: using Fused Filament Fabrication technology with transparent material. Generaly speaking this is not the best option with cheap 3D printer since it induces a lot of residual stresses and porosity that make the sample barely transparent. Still the company [Stratasys](https://www.stratasys.com/) proposes a quite recent material called [Veroclear](https://www.stratasys.com/materials/search/veroclear) which is perfectly clear and as photoelastic (and stiff) as plexiglass.
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The main drawback here is that the material is very stiff and expensive just like the printing techonology.
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https://www.nature.com/articles/s41598-017-11433-4
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To 3D printing a photoelastic sample an other option exist: using Fused Filament Fabrication technology with transparent material. Generaly speaking this is not the best option with cheap 3D printer since it induces a lot of residual stresses and porosity that make the sample barely transparent. Still the company [Stratasys](https://www.stratasys.com/) proposes a quite recent material called [Veroclear](https://www.stratasys.com/materials/search/veroclear) which is perfectly clear and as photoelastic (and stiff) as plexiglass. Another option is to use Durus White 430 which is less transparent but also less expensive. Veroclear has been used to make photoelastic samples [here](https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-5-6182) and [here](https://www.nature.com/articles/s41598-017-11433-4) by Yang Ju and co-workers while Durus White has been used by Osvanny Ramos and co-workers [here](http://www.revistacubanadefisica.org/index.php/rcf/article/view/22/12) to make photoelastic granular matter. The main drawback here is that these materials are very stiff and expensive just like the printing techonology.
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![Capture_du_2019-01-09_12-47-50](uploads/f99e69aeb413a603a395662518435dee/Capture_du_2019-01-09_12-47-50.png)
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Pictures of a [Veroclear](https://www.stratasys.com/materials/search/veroclear) sample in normale light and under compression between crossed polarisers extracted from [here](https://www.nature.com/articles/s41598-017-11433-4).
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[<go back to home](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/home) |
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