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Methods to make photoelastic samples
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Once you managed to [get photoelastic images](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/method-image) of your sample you can either be happy about such a nice picture or you may want to go a bit further and get something more quantitative. In this section we will present the different analysis you can carry out and what you could expect to measure. What you can get highly depends on the accuracy of your pictures, the sensitivity of sample and the behavior of its constitutive material. For different situations we tell you the best you can get and how you should proceed.
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Once you managed to [get a photoelastic image](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/method-image) of your loaded sample you can either be happy about such a nice picture or you may want to go a bit further and get something more quantitative. In this section we will present the different analysis you can carry out and what you could expect to measure. What you can get highly depends on the accuracy of your pictures, the sensitivity of sample and the behavior of its constitutive material. For different situations we tell you the best you can get and how you should proceed.
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The applications given here are dedicated to photoelastic granular samples. However it can be generalized to any other geometries.
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