Details:

Creators:
Yu, Hailing ; Tang, Yim H. ; Gordon, Jeffrey E. ; Jeong, David Y.
Yu, Hailing ; Tang, Yim H. ; Gordon, Jeffrey E. ; Jeong, David Y. Less -
Corporate Creators:
John A. Volpe National Transportation Systems Center (U.S.) ; MacroSys Research and Technology
John A. Volpe National Transportation Systems Center (U.S.) ; MacroSys Research and Technology Less -
Subject/TRT Terms:
[+]
Dynamic Testing
Fracture Mechanics
Hazardous Substances
Structural Analysis (Engineering)
Tank Cars
Dynamic Structural Analysis
Dynamic Tests
Fracture Tests
Hazardous Materials
Impact Tests
Puncture Resistance
Shells (Structural Forms)

Publication/ Report Number:
IMECE2009-11926
Resource Type:
Proceedings
NTL Classification:
NTL-SAFETY AND SECURITY-Highway Safety ; NTL-SAFETY AND SECURITY-Accidents ;
Abstract:
This paper presents a computational framework that

analyzes the effect of fluid-structure interaction (FSI) on the

impact dynamics of pressurized commodity tank cars using the

nonlinear dynamic finite element code ABAQUS/Explicit.

There exist three distinct phases for a tank car loaded with a

liquefied substance: pressurized gas, pressurized liquid and the

solid structure. When a tank car comes under dynamic impact

with an external object, contact is often concentrated in a small

zone with sizes comparable to that of the impacting object.

While the majority of the tank car structure undergoes elasticplastic

deformations, materials in the impact zone can

experience large plastic deformations and be stretched to a state

of failure, resulting in the loss of structural integrity.

Moreover, the structural deformation changes the volume that

the fluids (gas and liquid) occupy and consequently the fluid

pressure, which in turn affects the structural response including

the potential initiation and evolution of fracture in the tank car

structure.


Format:
PDF
Collection(s):
Volpe
Main Document Checksum:
[+]
urn:sha256:b99896404cf51694e35aeb197a7bd093835ae12a0b2338932c14034a7f05a09f
File Type:

Supporting Files

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