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Instability in Hypoelastic Simulations #771

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@ChrisZYJ

Description

@ChrisZYJ

Description

Commit 10b2209 (#727) introduces instability in some hypoelastic simulations compared to previous commit 108805c.

Test Case

  • Simulation: Simple acoustic wave propagation with sound waves from left focused at a centered stone

  • Case file: case_hypo.txt

Step 300 of the simulation (with commit 10b2209):

image

Comparison with the previous commit 108805c (top:108805c7 ; bottom:10b2209):

output.mp4

Environment & Configuration

  • Ubuntu 22.04.4 LTS
  • GNU 11.4.0
  • Using CPU with both debug enabled and disabled

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