Crashworthiness Assessment with Finite Element Method (FEM) Guide

Crashworthiness assessment involves evaluating the ability of a vehicle to protect occupants during collisions. This guide covers the definition, motivation, evolution, legal regulations, EuroNCAP load cases, FEM software, computational resources, and modeling techniques. Images and descriptions illustrate key aspects like crashworthiness definition, motivation for physical testing and FEM simulations, evolution from historical car crashes to modern safety ratings, and the importance of legal regulations.

• Crashworthiness
• FEM
• Vehicle Safety
• EuroNCAP
• Modeling Techniques

liet_ec Follow

Uploaded on Sep 27, 2024 | 0 Views

Download Presentation

Please find below an Image/Link to download the presentation.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. Download presentation by click this link. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.

Presentation Transcript

1. Crashworthiness assessment with FEM Crashworthiness assessment with FEM Jordi Parra Porcar Jordi Parra Porcar Master in Numerical Methods in Engineering Master in Numerical Methods in Engineering

2. GUIDE 1. Definition 2. Motivation 3. Evolution 4. Legal regulations & NCAP 5 EuroNCAP load cases 6. Popular FEM Comercial software 7. Computacional resources 8. Modelling techniques 27/09/2024 Crashworthiness analysis with FEM 2

3. GUIDE 1. 1. Definition Definition 2. Motivation 3. Evolution 4. Legal regulations & NCAP 5 EuroNCAP load cases 6. Popular FEM Comercial software 7. Computacional resources 8. Modelling techniques 27/09/2024 Crashworthiness analysis with FEM 3

4. 1. Definition Crashworthiness is the ability of an automobile to protect its occupants from major injury or death in the occurrence of collisions of a specific part and gives a measure of the ability of a structure to safeguard their occupants in survivable crashes (ScienceDirect) 27/09/2024 Crashworthiness analysis with FEM 4

5. GUIDE 1. Definition 2. 2. Motivation Motivation 3. Evolution 4. Legal regulations & NCAP 5 EuroNCAP load cases 6. Popular FEM Comercial software 7. Computacional resources 8. Modelling techniques 27/09/2024 Crashworthiness analysis with FEM 5

6. 2. Motivation Physical testing /correlation FEM simulation 27/09/2024 Crashworthiness analysis with FEM 6

7. GUIDE 1. Definition 2. Motivation 3. 3. Evolution Evolution 4. Legal regulations & NCAP 5 EuroNCAP load cases 6. Popular FEM Comercial software 7. Computacional resources 8. Modelling techniques 27/09/2024 Crashworthiness analysis with FEM 7

8. 3. Evolution 5 starts EURONCAP rated car: Jaguar I pace electric (2018) US library car crash (1930) 27/09/2024 Crashworthiness analysis with FEM 8

9. GUIDE 1. Definition 2. Motivation 3. Evolution 4. Legal 4. Legal regulations regulations & NCAP & NCAP 5 EuroNCAP load cases 6. Popular FEM Comercial software 7. Computacional resources 8. Modelling techniques 27/09/2024 Crashworthiness analysis with FEM 9

10. 4. Legal regulations & NCAP But before go into the market A safe car is worthy to buy! 27/09/2024 Crashworthiness analysis with FEM 10

11. GUIDE 1. Definition 2. Motivation 3. Evolution 4. Legal regulations & NCAP 5 5 EuroNCAP EuroNCAP load cases load cases 6. Popular FEM Comercial software 7. Computacional resources 8. Modelling techniques 27/09/2024 Crashworthiness analysis with FEM 11

12. 5 EuroNCAP load cases load cases Pole MDB Compatibility test - Upcoming in 2020 Full Width ODB 27/09/2024 Crashworthiness analysis with FEM 12

13. GUIDE 1. Definition 2. Motivation 3. Evolution 4. Legal regulations & NCAP 5 EuroNCAP load cases 6. Popular FEM Comercial software 6. Popular FEM Comercial software 7. Computacional resources 8. Modelling techniques 27/09/2024 Crashworthiness analysis with FEM 13

14. 6. Popular FEM Comercial software Preprocessor Selection features Meshing Desks Postprocessor Selection features High image quality Solver high degree of interaction with the numerical model Highly developed 27/09/2024 Crashworthiness analysis with FEM 14

15. GUIDE 1. Definition 2. Motivation 3. Evolution 4. Legal regulations & NCAP 5 EuroNCAP load cases 6. Popular FEM Comercial software 7. Computacional 7. Computacional resources resources 8. Modelling techniques 27/09/2024 Crashworthiness analysis with FEM 15

16. 7. Computacional resources Explicit / implicit N dofs Material models Contact conditions 27/09/2024 Crashworthiness analysis with FEM 16

17. GUIDE 1. Definition 2. Motivation 3. Evolution 4. Legal regulations & NCAP 5 EuroNCAP load cases 6. Popular FEM Comercial software 7. Computacional resources 8. 8. Modelling Modelling techniques techniques 27/09/2024 Crashworthiness analysis with FEM 17

18. 8. Modelling techniques Elements type Hourglass control Contact algorithms Seatbelts Airbags Accelerometers Sections 27/09/2024 Crashworthiness analysis with FEM 18