From: Reza Rastak <rastak@stanford.edu>
Date: Sun, 31 May 2020 15:16:53 +0000 (-0400)
Subject: Introdusing transfer of quadrature data of different lengths
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d122eea66180b217ffef61c290cb16726b79f2c;p=release-papers.git

Introdusing transfer of quadrature data of different lengths
---

diff --git a/9.2/paper.tex b/9.2/paper.tex
index fb1f334..eeaba12 100644
--- a/9.2/paper.tex
+++ b/9.2/paper.tex
@@ -279,6 +279,20 @@ that we briefly outline in the remainder of this section:
   discontinuous Galerkin schemes (as well as schemes for fourth-order
   equations, see the discussion of \texttt{step-47} below) and greatly
   simplify the implementation of these methods.
+\item Previously, the \texttt{parallel::distributed::ContinuousQuadratureDataTransfer}
+  class, which transfers local quadrature point data onto the
+  children of newly refined cells, did not allow different regions of the
+  triangulation store quadrature data of different lengths. This release lifts
+  this restriction, which enables efficient quadrature data storage and data
+  transfer within a triangulation containing multiple material models, each with
+  their own number of local state variables and history variables.
+  As an example, in a solid mechanics simulation, a hyper-elastic material
+  model can be assigned to a region of the mesh requiring no history variables
+  while another part of the triangulation uses an elasto-plastic constitutive
+  model, requiring the storage of local plasticity data at quadrature points.
+  During each refinement of the mesh, \texttt{ContinuousQuadratureDataTransfer}
+  can be used to transfer and interpolate plasticity data from parent cells to
+  their children, ignoring the cells with hyper-elastic constitutive model.
 \end{itemize}
 %
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