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CRASHWORTHINESS OF FORD F250® TRUCK “ROLL OVER –INVERTED VEHICLE DROP TEST (SAE J996)”

by

Pritesh K Shah
B.E. Mechanical Engineering, January 2003, Pune University, INDIA

A Project Report Submitted to the Faculty of Old Dominion University in
Partial Fulfillment of the Requirement for the Degree of

MASTER OF ENGINEERING

in

DESIGN & MANUFACTURING

MECHANICAL ENGINEERING

OLD DOMINION UNIVERSITY

August 2011

[pic]

ME-11-0082

CRASHWORTHINESS OF FORD F250® TRUCK “ROLL OVER –INVERTED VEHICLE DROP TEST (SAE J996)”

by

Pritesh K Shah
B.E. Mechanical Engineering, January 2003, Pune University, India

A Project Report Submitted to the Faculty of Old Dominion University in
Partial Fulfillment of the Requirement for the Degree of

MASTER OF ENGINEERING in DESIGN & MANUFACTURING

MECHANICAL ENGINEERING

OLD DOMINION UNIVERSITY

August 2011

Approved By:

___________________________ (Advisor)

___________________________

ABSTRACT

A finite element analysis of roof strength for Ford F250®® truck as per SAE J996 standard is performed using LS-DYNA®. A detailed finite element model was taken from NCAC (National Crash Analysis Centre) at George Washington University Virginia. NCAC is one of the prominent leaders in vehicle safety research. Efforts were taken to subject the F250 FEM (finite element model) for roll over impact study with the procedure suggested by SAE J996.

After running the F250 FEM for roll over, key areas for reduced impact on the roof structure of the truck were addressed and were redesigned. Further, a detailed study is carried out to compare the results between the original F250 model with the redesigned model. A comparison chart was made to illustrate the reduced impact on the predefined nodal points on the roof

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