Collapse Mechanism Analysis in the Design of Superstructure Vehicle

The EU directive 2001/85/EC is an official European text which describes the specifications for "single deck class II and III vehicles" required to be approved by the regulation UN/ECE no.66 (R66). To prevent the catastrophic consequences by occupant during an accident, the Malaysian gover...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2016-11, Vol.160 (1), p.12007
Main Author: Nor, M K Mohd
Format: Article
Language:English
Subjects:
Catastrophic failure analysis
Collapse
Energy absorption
Injury prevention
Mathematical analysis
Nonlinear analysis
Stiffness
Superstructures
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Summary:The EU directive 2001/85/EC is an official European text which describes the specifications for "single deck class II and III vehicles" required to be approved by the regulation UN/ECE no.66 (R66). To prevent the catastrophic consequences by occupant during an accident, the Malaysian government has reinforced the same regulation upon superstructure construction. This paper discusses collapse mechanism analysis of a superstructure vehicle using a Crash D nonlinear analysis computer program based on this regulation. The analysis starts by hand calculation to define the required energy absorption by the chosen structure. Simple calculations were then performed to define the weakest collapse mechanism after undesirable collapse modes are eliminated. There are few factors highlighted in this work to pass the regulation. Using the selected cross section, Crash D simulation showed a good result. Generally, the deformation is linearly correlates to the energy absorption for the structure with low stiffness. Failure of critical members such as vertical lower side wall must be avoided to sustain safety of the passenger compartment and prevent from severe and fatal injuries to the trapped occupant.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/160/1/012007