{"id":462405,"date":"2026-08-10T06:12:19","date_gmt":"2026-08-10T06:12:19","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/crashworthiness\/"},"modified":"2026-08-10T06:12:19","modified_gmt":"2026-08-10T06:12:19","slug":"crashworthiness","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/crashworthiness\/","title":{"rendered":"Crashworthiness"},"content":{"rendered":"
I am a final-year Mechanical Engineering student currently working on an academic project involving the replication of a published research paper titled “Optimization of Bi-Hexagonal Crash Box Design Using Metal 3D Printing Technology for Enhanced Crashworthiness.” (https:\/\/doi.org\/10.1016\/j.nxmate.2026.101841<\/a>)<\/div>\n
For our validation study, we replicated the M2 crash box model from the research article using ANSYS Workbench 2026 R1 student version (Explicit Dynamics). We carefully followed the geometry, material properties, boundary conditions, meshing strategy, and loading conditions described in the paper.<\/div>\n
However, after completing the simulation, we observed that our crashworthiness results differ significantly from those reported in the paper. The values of:<\/div>\n
Energy Absorption (EA)<\/div>\n
Specific Energy Absorption (SEA)<\/div>\n
Crush Force Efficiency (CFE)<\/div>\n
Peak Crushing Force (PCF)<\/div>\n
show approximately 40% deviation from the published results.<\/div>\n
We have repeatedly reviewed our model, including the material assignment, contact definitions, mesh quality, boundary conditions, and analysis settings, but we have not been able to identify the reason for such a large difference.<\/div>\n
Since this project is part of our academic research, we would greatly appreciate your guidance. We would be grateful if you could review our simulation setup or suggest possible reasons that could lead to this level of deviation. Any recommendations regarding solver settings, contact formulations, element types, material modelling, or other simulation parameters would be extremely valuable.<\/div>\n","protected":false},"template":"","class_list":["post-462405","topic","type-topic","status-publish","hentry","topic-tag-explicit_dynamic-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t