> For the complete documentation index, see [llms.txt](https://docs.enercalc.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.enercalc.com/e3d-user-manual/interface/toc175916526/toc161393755/toc161393772.md).

# Sub-Mesh Shells

How to sub-mesh selected shells into multiple segments with automatic load transfer and node merging.

Modify > Sub-Mesh Shells prompts you with the following dialog.

![](https://560001759-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FWNe8U6EBBBdUJHdb2X9G%2Fuploads%2Fgit-blob-2be5c913f42b77028462639b3403ddf9c396ba43%2FFASTFR~1_img35.png?alt=media)

It allows you to sub-mesh selected shells by specifying 2 or more segments along sides 1-2 & 4-3 and sides 2-3 & 1-4. Loads on the original shells are assigned automatically to the generated shells after sub-meshing. You have the option to merge nodes and elements after sub-meshing. You should check this option unless duplicate nodes are explicitly permitted.

The input in the dialog above is applied to the shells in screen capture below\...

![](https://560001759-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FWNe8U6EBBBdUJHdb2X9G%2Fuploads%2Fgit-blob-c2fbc039005acacc04df05ea01c8cfa096c97f3b%2FFASTFR~1_img36.png?alt=media)

shells before sub-meshing

...to generate the shells in the screen capture below by meshing.

![](https://560001759-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FWNe8U6EBBBdUJHdb2X9G%2Fuploads%2Fgit-blob-6182404af68696a4110c81b72942624eb1c041ae%2FFASTFR~1_img37.png?alt=media)

shells after sub-meshing


---

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