# Layered shell (composite) with spring element

**URL:** <https://calculix.discourse.group/t/layered-shell-composite-with-spring-element/414>\
**Category:** Uncategorized\
**Created:** [January 25, 2021, 7:30pm UTC](https://calculix.discourse.group/t/layered-shell-composite-with-spring-element/414 "2021-01-25T19:30:29Z")\
**Posts on this page:** 1\
**Showing post:** 36

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**Author:** ![JuanP74](https://avatars.discourse-cdn.com/v4/letter/j/b5a626/32.png) [@JuanP74](https://calculix.discourse.group/u/JuanP74)\
**Post date:** [February 7, 2023, 8:53pm UTC](https://calculix.discourse.group/t/layered-shell-composite-with-spring-element/414/36 "2023-02-07T20:53:52Z")

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this post:[Compilation error with gfortran10 - #3 by JuanP74](https://calculix.discourse.group/t/compilation-error-with-gfortran10/1048/3)

I recommend implementing the changes in this file ONTO the new version of c`ubtri.f` since it seems some syntax was updated by dhondt.

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