AWG ERIF Test Case 5: Bird Strike on Rigid Plate
| Image: | |
| Animation: | Test Case 5 Animation |
| Description: | A bird strike on a rigid plate (as replacement for a composite inlet of jet engine) is modeled with Lagrangian, ALE, SPH, S-ALE, and S-ALE with trimming approaches for the bird. This input deck serves as an example to provide consistent results among platforms and versions of the code as well as between the different modeling approaches. |
| Status: | Accepted and currently part of the AWG Test Suite |
| Classification: | Example |
| Input Deck: | Test Case 5 Input |
| Input Deck 03/14/2018 Update: | Structured ALE (S-ALE) and S-ALE with trimming models for the bird added. |
| Keywords: | *MAT_NULL |
| ... | |
| Units: | in (length), s (time), lbf-s2/in (mass), psi (stress), lbf-in (energy) |
| Model Data: | Lagrangian approach: 14400 shells / 1 shell material, 432 solids / 1 solid material, 2 parts |
| ALE approach: 16230 shells / 2 shell material, 84800 solids / 1 solid material, 3 parts | |
| SPH approach: 14400 shells / 1 shell material, 15912 SPH nodes / 1 SPH material, 2 parts | |
| Run Time: | Lagrangian approach: approx. total CPU time = 1 minutes 33 seconds (Intel® Xeon® CPU E7- 8837 @ 2.67GHz / MPP / 4 cpu's) |
| ALE approach: approx. total CPU time = 7 minutes 12 seconds(Intel® Xeon® CPU E7- 8837 @ 2.67GHz / MPP / 4 cpu's) | |
| SPH approach: approx. total CPU time = 13 minutes 36 seconds (Intel® Xeon® CPU E7- 8837 @ 2.67GHz / MPP / 4 cpu's) | |
| Earliest Version: | LS-DYNA® R4.2.1 |
| Test Case Details and Results: | Test Case 5, Documentation and Results for LS-DYNA R14.1-7-gea5f83301c |
| Test Case 5, Documentation and Results for LS-DYNA R12.2 Revision 1-g2dd504fe3d | |
| Test Case 5, Documentation and Results for LS-DYNA R14.0 Revision 461-gee93a457ac | |
| Test Case 5, Documentation and Results for LS-DYNA R13.1 Revision 93-g6e31b592d7 | |
| Test Case 5, Documentation and Results for LS-DYNA R13.0 Revision 365-gf8a97bda2a | |
| Test Case 5, Documentation and Results for LS-DYNA R12.1 Revision 204-g810450fa20 | |
| Test Case 5, Documentation and Results for LS-DYNA R12.0 Revision 148708 | |
| Test Case 5, Documentation and Results for LS-DYNA R11.2 Revision 51-g7e1aee4 | |
| Test Case 5, Documentation and Results for LS-DYNA R11.1 Revision 139325 | |
| Test Case 5, Documentation and Results for LS-DYNA R11.0 Revision 130010 | |
| Bug Issues Found and Fixed: | BUG 18081 in subcases 5.4 and 5.5: Error in subroutine wtalecps and changes to matsum internal energy. The error affected releases R12.1, R13.0, and R13.1 and the fixes are in R12.1 and R13.1, but not R13.0 |
Test Case 5 History: 03/14/2018 Update
| Input Deck: | Test Case 5 |
| Input Deck Updates: | ALE parts changed from ELFORM 12 to ELFORM 11. |
| Test Case Details and Results: | Test Case 5, Documentation and Results for LS-DYNA R10.2 Revision 134743 |
| Test Case 5, Documentation and Results for LS-DYNA R9.3 Revision 126955 | |
| Test Case 5, Documentation and Results for LS-DYNA R10.1 Revision 123136 | |
| Bug Issues Found and Fixed: | None |
Test Case 5 History: 03/18/2014 Update
| Input Deck: | Test Case 5 |
| Input Deck Updates: | Bird density was adjusted to the density of water. |
| Test Case Details and Results: | Test Case 5, Documentation and Results for LS-DYNA R9.2 Revision 118235 |
| Test Case 5, Documentation and Results for LS-DYNA R10.0 Revision 116539 | |
| Test Case 5, Documentation and Results for LS-DYNA R9.1 Revision 113467 | |
| Test Case 5, Documentation and Results for LS-DYNA R9.0 Revision 112875 | |
| Test Case 5, Documentation and Results for LS-DYNA R9.0 Revision 108899 | |
| Test Case 5, Documentation and Results for LS-DYNA R8.0.0 Revision 96167 | |
| Test Case 5, Documentation and Results for LS-DYNA R7.1.0 Revision 87770 | |
| Bug Issues Found and Fixed: | BUG 12481: SPH model differences between SMP and MPP versions, fixed in R9.0 Revision 112875. |
Test Case 5 History: 02/09/2012 Update
| Input Deck: | Test Case 5 |
| Input Deck Updates: | Modifications were made to the ALE input deck. The usage of *INITIAL_VOLUME_FRACTION_GEOMETRY in this test case was incorrect. There is only one ALE multi-material group in the model, but in the *INITIAL_VOLUME_FRACTION_GEOMETRY card, it specifies changing the material inside a shell from AMMG 2 to AMMG 1. It passed the previous test, but failed with a newly added check to make sure the change from and to AMMG IDs are in the correct range. |
| Test Case Details and Results: | Test Case 5, Documentation and Results for LS-DYNA R7.0.0 Revision 79069 |
| Test Case 5, Documentation and Results for LS-DYNA R6.1 Revision 74159 | |
| Test Case 5, Documentation and Results for LS-DYNA R6 Revision 71731 | |
| Bug Issues Found and Fixed: | BUG 6831 Different internal energy for SMP and MPP (ALE), Keyword: *DATABASE_MATSUM, fixed in R6.71666 and dev.71665 |
Test Case 5 History: 07/27/2011 Original Input Deck
| Input Deck: | Test Case 5 |
| Test Case Details and Results: | Test Case 5, Documentation and Results for LS-DYNA R5.1.1 Revision 67628 |
| Bug Issues Found and Fixed: | None |
last modified on Monday April 24, 2023 13:49:20 PDT