Numerical Studies on Crashworthiness of Layered Sorbothane–Steel Bumper Beam for Passenger Car.
Saved in:
| Title: | Numerical Studies on Crashworthiness of Layered Sorbothane–Steel Bumper Beam for Passenger Car. |
|---|---|
| Authors: | Lakew, Molla Asmare1 (AUTHOR), Rao, D. K. Nageswara2 (AUTHOR), Paramasivam, Velmurugan3 (AUTHOR) drvelmuruganp@bdu.edu.et, Majumder, Himadri (AUTHOR) himu.nita@gmail.com |
| Source: | Journal of Engineering (2314-4912). 10/13/2025, Vol. 2025, p1-16. 16p. |
| Subjects: | Automobile bumpers, Steel, Automobile safety, Engineering design, Cushioning materials, Safety, Absorption, Impact (Mechanics) |
| Abstract: | A bumper beam is the front and rear structural component of a vehicle designed to absorb energy during low‐velocity impacts, which occur mostly during frontal collisions. Improvements in designs are based on the selection of new materials to enhance crashworthiness, reduce mass, and improve esthetics. This study explores a layered steel and Sorbothane material construction as an alternative to the existing hollow steel bumper filled with functionally graded foam. Three‐point bending impact simulations are conducted using Ansys LS‐DYNA. The specific energy absorption (SEA) for the present design is 3.613 kJ/kg, compared to 2.828 kJ/kg for the existing design, representing an increase of 27.76%. The study includes the choice of stacking sequence, cross‐section, and radius of curvature of the beam for higher SEA and deflection at low stress. The hollow rectangular cross‐section exclusively considered in this work is found to provide better crashworthiness properties compared to the existing type and its modified version. It is found that an increase in the radius of curvature results in a decrease in SEA and an increase in stress. In other words, the curved beam performs better than the straight one. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Engineering (2314-4912) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | A bumper beam is the front and rear structural component of a vehicle designed to absorb energy during low‐velocity impacts, which occur mostly during frontal collisions. Improvements in designs are based on the selection of new materials to enhance crashworthiness, reduce mass, and improve esthetics. This study explores a layered steel and Sorbothane material construction as an alternative to the existing hollow steel bumper filled with functionally graded foam. Three‐point bending impact simulations are conducted using Ansys LS‐DYNA. The specific energy absorption (SEA) for the present design is 3.613 kJ/kg, compared to 2.828 kJ/kg for the existing design, representing an increase of 27.76%. The study includes the choice of stacking sequence, cross‐section, and radius of curvature of the beam for higher SEA and deflection at low stress. The hollow rectangular cross‐section exclusively considered in this work is found to provide better crashworthiness properties compared to the existing type and its modified version. It is found that an increase in the radius of curvature results in a decrease in SEA and an increase in stress. In other words, the curved beam performs better than the straight one. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 23144904 |
| DOI: | 10.1155/je/7519317 |
