# \#viscoplastic

**URL:** https://community.geodynamics.org/tag/viscoplastic/114.md

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## [Visco plastic material model results in constant (minimum) viscosity](https://community.geodynamics.org/t/visco-plastic-material-model-results-in-constant-minimum-viscosity/3454)

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**Author:** [@SarahChinski](https://community.geodynamics.org/u/SarahChinski)\
**Replies:** 9\
**Last updated:** [May 24, 2024, 7:59pm UTC](https://community.geodynamics.org/t/visco-plastic-material-model-results-in-constant-minimum-viscosity/3454 "2024-05-24T19:59:46Z")

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Hello ASPECT community! I’m a grad student working on modeling convection in an icy shell, I have a question about a 2D visco plastic model with variable viscosity that my advisor and I have been working on. Specificall…

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## [Strip pattern in viscosity when using visco plastic](https://community.geodynamics.org/t/strip-pattern-in-viscosity-when-using-visco-plastic/2546)

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**Author:** [@Liu](https://community.geodynamics.org/u/Liu)\
**Replies:** 15\
**Last updated:** [October 24, 2022, 8:55pm UTC](https://community.geodynamics.org/t/strip-pattern-in-viscosity-when-using-visco-plastic/2546 "2022-10-24T20:55:54Z")

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Hi, I am running a 2D subduction model using Visco plastic and I am using version 2.4.0-pre. The results I got are behaving weirdly. There are a few problems: There is a weird high viscosity at the bottom center. I l…