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Load Transfer in Truck Cab Structures under Initial Phase of Frontal Collision
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A new parameter U** that represents load paths in structures is applied to a truck cab under collision. Since the main part of a compartment should be maintained in a linear elastic condition, a linear U** analysis can be applied. U** for the deformed body is statically calculated from the extracted deformation results of a crash simulation. A substitution-modulus method is applied to reproduce the material and geometrical nonlinearities. An index "m2-4msU**" is proposed as a standard condition for the truck cab. The predominant load paths along the floor member and the shear effect of the floor panel are demonstrated.
Keywords
Truck Cab Structure, Structural Analysis, Load Path, Frontal Collision, Safety, Finite Element Method.
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