Fix 1D structural element Jacobian

MASTmultiphysics / mast-multiphysics

Multidisciplinary-design Adaptation and Sensitivity Toolkit (MAST) - Sensitivity-enabled multiphysics FEA for design

https://www.mast-multiphysics.com

GNU Lesser General Public License v2.1

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Fix 1D structural element Jacobian #75

Closed manavbhatia closed 4 years ago

manavbhatia commented 4 years ago

This fixes the issue discussed in #64

Streamlined computation of 1D structural internal residual vector and Jacobian
Fixed bugs in Jacobian computation that were causing indefinite stiffness matrix when section offset was specified.

jdeaton commented 4 years ago

Looks like this straightened out the issues John was seeing and his tests are now passing. I'm going to go ahead and merge this into master and close the related issues linked here. The tests that prompted this will get merged in a later PR.

manavbhatia commented 4 years ago

This was merged into v2 branch. We have already merged v2 into master through #65. I think any following merges from v2 into master will have to happen through patches, instead of merging the whole branch.