ASPECT Newsletter #100

Hello everyone!

       This is ASPECT newsletter #100.

It automatically reports recently merged features and discussions about the ASPECT mantle convection code.

Below you find a list of recently proposed or merged features:

#3446: fix type of quadrature degree increase in GravityPointValues (proposed by tjhei)
#3445: Patterns::Double and Integer arguments (proposed by tjhei)
#3444: Rheology module for viscosity multiplication (proposed by naliboff)
#3443: Add elastic plate flexure benchmark (proposed by naliboff)
#3442: Refactor viscoelastic computations (proposed by gassmoeller; merged)
#3441: doxygen fixes and update parameters (proposed by tjhei; merged)
#3440: tests: normalize/remove TimerOutput text frame (proposed by tjhei; merged)
#3439: Remove viscoelastic plastic material model and test suite (proposed by naliboff; merged)
#3438: Set the precision of gravity to 12 in gravity_point_values postprocessor (proposed by LudovicJnnt; merged)
#3437: Add test for visco plastic additional outputs (internal angle of friction) (proposed by naliboff; merged)
#3436: Qr bilinear interpolation (proposed by sac-bsa)
#3435: clang 10 fixes (proposed by tjhei; merged)
#3434: Fix deprecation warning (proposed by gassmoeller; merged)
#3433: Only average viscosity for gmg (proposed by gassmoeller; merged)
#3430: fix path of convection-box.prm as mentioned in manual (proposed by tjhei; merged)
#3429: update gitignore (proposed by tjhei; merged)
#3427: avoid deal.II deprecation of n_array_elements (proposed by tjhei; merged)
#3426: Prescribed plastic dilation (proposed by tjhei; merged)
#3420: Add average- minimun- and maximum gravity/potential in Gravity Postprocessor (proposed by LudovicJnnt; merged)
#3377: Workaround for issue 3359 (proposed by gassmoeller; merged)
#3306: Add viscoelasticity to the visco plastic material model (proposed by naliboff; merged)

And this is a list of recently opened or closed discussions:

#3432 precompile headers with recent deal.II dev is broken (opened and closed)

A list of all major changes since the last release can be found at this website .

Thanks for being part of the community!

Let us know about questions, problems, bugs or just share your experience by visting our [forum](https://community.geodynamics.org/c/aspect), or by opening issues or pull requests on [Github](https://www.github.com/geodynamics/aspect).
Additional information can be found at our [official website](https://aspect.geodynamics.org/), and CIG's [ASPECT website](https://geodynamics.org/cig/software/aspect/).