Arup Cellbond Barrier Models – **New: Full Width Deformable Barrier (FWDB)
Arup Cellbond Barrier Models A range of robustly validated finite element models for LS-DYNA. Full Width Deformable Shell Barrier This…
Arup Cellbond Barrier Models
A range of robustly validated finite element models for LS-DYNA.
*NEW* IIHS (Specification 2.0) Side Impact Barrier
This new specification barrier model has been developed as a Shell element model which provides a more accurate representation of the physical model. All information on this page relates to this new specification Shell element model.
The previous specification model (Solid element type) is still available. Please get in touch for more information.
Upgraded Test Protocol
The specifications used for the development of the IIHS Side Impact Moving Deformable (MDB) Barrier 2.0 Specification described here have been taken from ‘Side Impact Crashworthiness Evaluation Moving Deformable Barrier 2.0 Specification’, Version 1, October 2020.
This moving barrier replaces the previous IIHS Side Impact Barrier developed back in 2000-2001. IIHS is now upgrading their side impact test protocol to include an updated deformable barrier (Specification 2.0) and a test setup that continues to reflect changes in vehicle types and accidents.
This new Specification 2.0 barrier has been redesigned to better represent the front-end shape of certain types of vehicles, SUVs and Pick-ups and is being introduced to make the barrier to vehicle tests more representative of real-life vehicle impacts. Planned introduction for the new test protocol is 2022.
Validation
The LS-DYNA model calibration has been done using the test data provided by Cellbond for three different impact conditions. The tests involve the barrier on a trolley impacting a vertical impactor, offset vertical impactor and a flat wall. The force-deflection curves for the barrier (generated from analyses and tests) have been compared.
Additionally, material testing has also been performed to define the material models for the different parts of the barrier. The barrier model has also been tested against a full vehicle model to calibrate its behaviour under regulation conditions.
This validation work has been carried out in both SMP and MPP versions of LS-DYNA R12.0.0 to ensure performance and accuracy.
Specifications
| Element Type | LS-DYNA Release Version | Total Number of Elements | Timestep | Regulation Test | Regulation Speed |
|---|---|---|---|---|---|
| Regulation Speed | LS-DYNA 971 R12.0.0 SMP/MPP | 1239920 | 1.0E-6 | IIHS Side Impact Tests | 60kph |
If you would like to discuss this models or get a quotation please get in touch.
Brochure
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