| Title | Finite element analyses of railroad tank car head impacts |
|---|---|
| Record ID | 47512 |
| Personal Name Creator |
Tang, Y.H.; Yu, H.; Gordon, J E; Jeong, D.Y. |
| Source | Proceedings of the 2008 ASME Rail Transportation Division Fall Technical Conference, September 24-25, 2008, Chicago, IL; 9p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.) |
| Publisher | American Society of Mechanical Engineers |
| Publication Date | 20080924 |
| Language | English |
| Abstract | This paper describes engineering analyses of a railroad tank car impacted at its head by a rigid punch. This type of collision, referred to as a head impact, is examined using dynamic, nonlinear finite element analysis (FEA). Commercial software packages ABAQUS and LS-DYNA are used to carry out the nonlinear FEA. The sloshing response of fluid and coupled dynamic behavior between the fluid inside the tank car and the tank structure are characterized in the model using both Lagrangian and Eulerian mesh formulations. The analyses are applied to examine the structural behavior of railroad tank cars under a generalized head impact scenario. Structural behavior is calculated in terms of forces, deformations, and puncture resistance. Results from the two finite element codes are compared to verify this methodology for head impacts. In addition, FEA results are compared to those from a semi-empirical method. |
| Rosap ID | dot:9901 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/9901 |
| TRT Terms | Finite element method; Structural analysis; Puncture resistance; Failure analysis; Tank cars; Impact tests; Railroad safety |
| Classification | NTL - RAIL TRANSPORTATION - Rail Safety; NTL - SAFETY AND SECURITY - Rail Safety; NTL - SAFETY AND SECURITY - Vehicle Design |
| Geographical Coverage |
United States |
| Report Number | RTDF2008-74022 |
| Availability | Volpe National Transportation Systems Center, Technical Reference Center |
| Resource type | Proceedings |
| URL | https://ntlrepository.blob.core.windows.net/lib/47000/47500/47512/rdtf2008-74022.pdf |
| Format | |
| Database | NTL Digital Repository |