# Plastic Calculation

**URL:** <https://forum.itascainternational.com/t/plastic-calculation/610>\
**Category:** FLAC3D\
**Created:** [June 9, 2022, 8:19pm UTC](https://forum.itascainternational.com/t/plastic-calculation/610 "2022-06-09T20:19:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![CrissBidermann](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@CrissBidermann](https://forum.itascainternational.com/u/CrissBidermann)\
**Post date:** [June 9, 2022, 8:19pm UTC](https://forum.itascainternational.com/t/plastic-calculation/610/1 "2022-06-09T20:19:52Z")

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How is it possible that a model zone performs plastic work (calculated from the command: zone.work.plastic.total()) but does not have a plasticity stage with the command: zone state? In my model this happens and I don’t understand the logic behind it.

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**Author:** ![m.camusso](https://avatars.discourse-cdn.com/v4/letter/m/9f8e36/32.png) [@m.camusso](https://forum.itascainternational.com/u/m.camusso)\
**Post date:** [June 10, 2022, 4:43pm UTC](https://forum.itascainternational.com/t/plastic-calculation/610/2 "2022-06-10T16:43:20Z")

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What if you plot the zone state but you look to “state by any”? Could be possible that one of the sub-tets is undergoing plasticity but, “in average” the zone stays elastic?

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**Author:** ![CrissBidermann](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@CrissBidermann](https://forum.itascainternational.com/u/CrissBidermann)\
**Post date:** [June 10, 2022, 7:07pm UTC](https://forum.itascainternational.com/t/plastic-calculation/610/3 "2022-06-10T19:07:04Z")

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Indeed now if the results make sense. Thank you very much.