United States Department of Transportation
i
Finite element analyses of railroad tank car head impacts
-
2008-09-24
-
[PDF-292.08 KB]
Details:
-
Alternative Title:Proceedings of the 2008 ASME Rail Transportation Division Fall Technical Conference
-
Creators:
-
Corporate Creators:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
NTL Classification:NTL-RAIL TRANSPORTATION-Rail Safety;NTL-SAFETY AND SECURITY-Rail Safety;NTL-SAFETY AND SECURITY-Vehicle Design;
-
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.
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
