{"id":394867,"date":"2024-11-21T23:10:03","date_gmt":"2024-11-21T23:10:03","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/explicit-dynamics-analysis-ends-without-error-but-doesnt-reach-100-progress\/"},"modified":"2024-11-21T23:10:03","modified_gmt":"2024-11-21T23:10:03","slug":"explicit-dynamics-analysis-ends-without-error-but-doesnt-reach-100-progress","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/explicit-dynamics-analysis-ends-without-error-but-doesnt-reach-100-progress\/","title":{"rendered":"Explicit Dynamics analysis ends without error, but doesn\u00b4t reach 100% progress"},"content":{"rendered":"

<p>Hi everyone,<\/p><p>Im trying to perform a crash test simulation using Explicit Dynamics, with the student version. Mi model consists of a car crashing at 50km\/h. To represent the whole evolution of the crash i need to perform the simulation with an “end time” of 0,1s. My problem is that the simulation “ends successfully” before reaching 100% progress, without any error notification.<\/p><p><\/p><p>As you can see in the image above, the simulation stops at 0,06219s, with 140364 cycles and at 62,19%, and without any message or error. I only get the following warning “The solver proceeds correctly with material Structural Steel NL having Specific Heat Constant Pressure, Cp, equal to the value of Specific Heat Constant Volume, Cv.”<\/p><p>These are the analysis settings and the time step evolution graph<\/p><p><\/p><p><\/p><p>I tried upping the “maximum number of cycles”, and setting manualy a very small value for the “minimum time step” but i get the same problem.<\/p><p>On the other hand, i realized that the finer the mesh, the sooner the simulation ends (less cycles performed and less progress% reached), but with a very coarse mesh i can make the simulation reach an “end time” closer to what i want.<\/p><p>Anyone can help me to solve this?<\/p><p>Thank you!<\/p><\/p>\n

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