From 647e2ece6ea0514caac008fc452a1fa739dc040b Mon Sep 17 00:00:00 2001 From: Swetha Veeraraghavan Date: Fri, 17 May 2019 11:47:22 -0400 Subject: [PATCH] Adding references #174 --- doc/content/bib/mastodon.bib | 8 ++++++++ doc/content/news/2019-03.md | 6 ++++-- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/doc/content/bib/mastodon.bib b/doc/content/bib/mastodon.bib index cf75492fa4..8b8991830f 100644 --- a/doc/content/bib/mastodon.bib +++ b/doc/content/bib/mastodon.bib @@ -377,3 +377,11 @@ @article{hashash2010recent journal = {Fifth International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, San Diego}, year = {2010} } + +@article{dvorkin1984continuum, + author = {E.~N.~Dvorkin and K.~J.~Bathe}, + title = {A continuum mechanics based four-node shell element for general non-linear analysis}, + journal = {Engineering Computations}, + volume = {1}, + pages = {77-88}, + year ={1984}} diff --git a/doc/content/news/2019-03.md b/doc/content/news/2019-03.md index 6f9d414150..53222d1107 100644 --- a/doc/content/news/2019-03.md +++ b/doc/content/news/2019-03.md @@ -38,12 +38,12 @@ A beam mesh generator has been created and is currently under testing. The mesh !row! !col! small=12 medium=6 large=6 -Implementing strain calculator for shell implements that computes the strain tensor in the shell local coordinate system. Modified the strain calculator so that the strains are calculated in the element local coordinate system. This will enable use of the shell element with the existing material models in the long run, through the use of the weak plane stress kernel. Added the stress calculators and linear elastic isotropic elasticity tensor class for shell elements that has weak plane stress assumption built in it. Also, added stress divergence kernel for shell elements using the stresses and test function gradients calculated in the shell local coordinate system. Began testing it on bending of a 4 element cantilever beam bending problem from Dvorkin and Bathe paper. The residual is diverging, mostly likely due to a bug in the linear elastic isotropic elasticity tensor for the shell. +A 4-noded shell element is being implemented in MOOSE based on the [citet:dvorkin1984continuum] formulation. This shell element can be used for problems that involve small or finite rotations. An initial tested version of this element would be available in MASTODON by end of Summer, 2019. !col-end! !col! small=12 medium=6 large=6 !media news/mar2019/Picture3.png style=width:300px;margin-left:50px id=image003 - caption=??? + caption=Illustration of the [citet:dvorkin1984continuum] 4-noded shell element. !col-end! !row-end! @@ -62,3 +62,5 @@ Extended the `ResponseHistoryBuilder`, `ResponseSpectraCalculator` and `HSICalcu !col-end! !row-end! + +!bibtex bibliography