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Discover how Ansys LS-DYNA is revolutionizing vehicle safety through its crashworthiness evaluations.

The Importance of Crashworthiness in Vehicle Safety and The Challenges

Crashworthiness plays a crucial role in ensuring vehicle safety. When a car is involved in an accident, the ability of its structural components to absorb and dissipate energy can mean the difference between life and death for the occupants. Crashworthiness evaluations aim to assess the performance of vehicles in various crash scenarios, helping manufacturers design safer cars.

Engineering Challenges

  • Meet/exceed crash standards rating
  • Safely reduce weight
  • Minimize expensive physical tests
  • Increase security of the cabin passengers.
  • Comply with local safety regulations.

However, crashworthiness evaluations come with their own set of challenges. The complexity of real-world accidents, the need for accurate simulation models, and the ever-evolving safety standards make crashworthiness evaluations a demanding task. To overcome these challenges, engineers rely on advanced simulation tool as Ansys LS-DYNA.

Understanding Ansys LS-DYNA's Capabilities

Ansys LS-DYNA is a powerful finite element analysis software specifically designed for simulating complex dynamic events, including vehicle crashes. With its robust capabilities, engineers can accurately model and simulate various crash scenarios, allowing them to evaluate the crashworthiness of different vehicle designs.

One of the key features of Ansys LS-DYNA is its ability to simulate material behavior under extreme loading conditions. This includes modeling the deformation and failure of different materials, such as metals, composites, and polymers. By accurately capturing the behavior of these materials, engineers can predict how a vehicle's components will respond during a crash, helping them optimize the design for maximum safety.

Additionally, Ansys LS-DYNA offers advanced contact algorithms, allowing engineers to simulate interactions between different vehicle components, such as the interaction between the car body and the airbags. This level of detail helps engineers gain insights into the performance of safety systems and make informed design decisions.

Ansys LS-DYNA Capabilities

  • Accuracy: Crash/impact simulation including occupant, airbag and constraint models used by over 80% of major automotive OEMs
  • Complete vehicle crash simulations with seatbelts, airbags, dummies, and the vehicle
  • Replace physical prototypes to shorten the duration of the product development cycle.
  • High-fidelity: predict crash performance through explicit simulations (LS-Dyna)
  • Variance-based robustness analysis of the crash simulation model (optiSLang)
  • Damage prediction
  • Crash effects on passengers
  • Airbag deployment verification
  • Fulfill legal requirements and adhere to car safety regulations

Overall, Ansys LS-DYNA's capabilities empower engineers to conduct comprehensive crashworthiness evaluations, leading to the development of safer vehicles and improved vehicle safety standards.

Ozen Engineering Experience with Crashworthiness Analyses

An expert in providing simulation solutions, Ozen Engineering has a great deal of experience with Ansys LS-DYNA explicit analysis. Our skilled engineers have contributed to multiple projects that have helped automakers improve the safety of their cars.

Through our expertise in using Ansys LS-DYNA, Ozen Engineering has been able to simulate and evaluate various crash scenarios, including frontal impacts, side impacts, and rollovers. By analyzing the structural response, occupant kinematics, and safety system performance, we have provided valuable insights to our clients, enabling them to make data-driven design decisions.

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Post by Kamil Koyunlu
November 30, 2023