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Arup-Cellbond Advanced Chinese Mobile Deformable Barrier (AC-MDB)

For C-IASI 2023 side impact crashworthiness evaluations

This barrier model is a Shell element model.

The Advanced Chinese Mobile Deformable Barrier (AC-MDB) model has been developed according to CAERI’s Side Impact Crash Test Protocol (2023 version), in compliance with the C-IASI 2023 Side Impact Crashworthiness Evaluation Crash Test Protocol 2023, for implementation in 2023.

Validation

The Ansys LS-DYNA model calibration has been done using the test results for various quasi-static and dynamic loading conditions

The honeycomb blocks have been validated in compliance to the AC-MDB specifications. As the cell size of the mesh is larger than the true one, the thickness of the honeycomb walls is not the real one, but it is calibrated against the corridors provided in the AC-MDB barrier specifications. The LS-DYNA model calibration has been done using the simulation results for a 40kph dynamic impact against a rigid wall and validated against physical test data. The test involves the barrier on a trolley impacting a rigid wall. The force-deflection curves (generated from model’s analyses) for the individual block of the barrier have been compared against the corridors from the specification document. The total force from the summation of all individual blocks have also been compared against specification corridors and test results. This work has been carried out in MPP SP versions of LS-DYNA R9.3.1, 11.2.2, and R12.2.2 to ensure performance and accuracy.

Additional validation studies have been carried out using sedan vehicle tests.

The analyses have been run in MPP version of LS-DYNA R11.2.2 to ensure performance and accuracy.

Specifications

If you would like to discuss this models or get a quotation please get in touch.

From left: Simulation image of Arup-Cellbond AC-MDB v1.0 in Oasys LS-DYNA Environment; Physical barrier image of the AC-MDB v1.0 by Cellbond.