# Reseting displacements but not small strains

**URL:** <https://forum.itascainternational.com/t/reseting-displacements-but-not-small-strains/1033>\
**Category:** FLAC3D\
**Created:** [May 15, 2023, 4:43pm UTC](https://forum.itascainternational.com/t/reseting-displacements-but-not-small-strains/1033 "2023-05-15T16:43:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![juantello](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@juantello](https://forum.itascainternational.com/u/juantello)\
**Post date:** [May 15, 2023, 4:43pm UTC](https://forum.itascainternational.com/t/reseting-displacements-but-not-small-strains/1033/1 "2023-05-15T16:43:37Z")

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I am modeling a rockfill dam under seismic loads using the plastic hardening model with small strains. The dam is built under a given construction sequence, which generates strains and modulus degradation. I would like to be able to reset the deformations after the end of construction without reseting the modulus to G0, which appears to happend if I use

`zone gridpoint ini disp (0,0,0)`

as this does reset the strain increments and makes my model stiffer. Is there a way I can reset the deformations without reseting the strains or maybe just not reset the modulus to its initial values?

Thank you in advance,

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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:** [May 16, 2023, 11:44am UTC](https://forum.itascainternational.com/t/reseting-displacements-but-not-small-strains/1033/2 "2023-05-16T11:44:16Z")

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You can store displacements in an extra (or in a list) before running the dynamic analysis. When you want to post-process and plot the incremental displacements during seismic loading, you simply subtract the stored values from the current displacements.