ODB SHELL MODEL
The ODB shell model effectively implements the latest developments of LS-DYNA codes and provides users with a stable and targeted analysis.
- Used by BMW Group and CATARC
- According to tests conducted by CATARC, the GNS ODB model has higher accuracy than similar products. CATARC recommends the GNS ODB to customers
- Numerous dynamic tests in both the component area and with full barriers allow for consistent and finer calibration. This goes beyond the regulated barrier control process
- The development of the models is based on many years of expertise in customer projects
- Simulations can be evaluated in comparison with real test results
- Competent technical support is available at all times
- Animator4, developed by GNS, supports the customer in postprocessing the results
Specifications
The specification of the ECE Regulation No. 94 (Annex 9) served as the basis for the development of our Offset Deformable Barrier (ODB). The ODB model is used for assessment of frontal vehicle impacts. The goal is to comply with or exceed the requirements described in the regulations above. Our ODB model is an ideal basis for successful development of your vehicle structures.
Element Type: Shell
Number of Elements: 1.700.000
Timestep: 5.0×10-4 ms
Validation Code: LS-DYNA R9.3.0
Regulation Test: ECE R94
Regulation Speed: 56 km/h
| Element Type | Numbers of Elements | Timestep | Validation Code | Regulation Test | Regulation Speed |
|---|---|---|---|---|---|
| Shell | 1,700,000 | 5.0x10-4 ms | LS-DYNA R9.3.0 | ECE R94 | 56 km/h |
Validation
The LS-DYNA model of the ODB was created to comply with the stiffness requirements described in the ECE Regulation No. 94. Additionally, it was improved using multiple real test load cases to model phenomena of deformation and failure. Our ODB model was refined using various impactors placed at different positions. Comparing deflection curves and recognizing optical phenomena resulting from real component tests led to an evolved ODB model, that accurately represents the behavior of a real ODB.
