Model Files for Federal Outdoor Impact Laboratory Test 03008

A long wheelbase sleeper cab tractor was developed from NCAC's original tractor-only FE model. This tractor model was modified to reflect NCAC's full scale tractor-only crash test (No.03008) and validated against that test.

Input Files for the Sleeper Cab Tractor and 48-Foot Trailer Models

• 00Main500x.k This is the input file that is submitted to LS-Dyna for analysis. It uses the *INCLUDE command to combine all the input files for the model for analysis with the tractor-semitrailer 0.50 meters from the barrier.
• 00MainAtBarrier.k This is the input file that is submitted to LS-Dyna for analysis with the tractor-semitrailer at the barrier. It uses the *INCLUDE command to combine all the input files for the model.
• 01a_Trac_Sleepr_10-0308.k The finite element model of a Freightliner FLD120 Sleeper Cab tractor. All nodes, elements, materials, connections, etc. for the tractor are included in this file.
• 01b_Intial-stress.k File containing initial stress state for the front leaf springs of the tractor to account for equilibrium load on the leaf spring components under gravity loading. Without this file, the tractor would displace significantly under gravity load, altering the center of gravity and bumper height.
• 01c_Airide_60psi.k Part, Section and Material definition for the discrete element model of the tractor Airide suspension with properties corresponding to 60 psi internal pressure. Used in tractor-semitrailer model for trailer ballasted to 80,000 lbs (36,000 kg).
• 02a_semitrailer48_10-0521.k The finite element model of 45-ft Stoughton semitrailer. All nodes, elements, connections, etc. for the trailer are included in this file.
• 02b_AirRideTrailer72p5psi.k Part, Section and Material definition for the discrete element model of the Airide suspension with properties corresponding to 72.5 psi internal pressure. Used in tractor-semitrailer model for trailer ballasted to 80,000 lbs (36,000 kg).
• 02b_TrailerMaterials_2010-0217.k Material database for the semitrailer.
• 03Tractor2Trailer_09-0206.k Creates a spherical joint connection between the trailer kingpin and the tractor fifth-wheel. Also, defines contact between the kingpin box and fifth-wheel.
• 05NJB-Ballast-foam11b.k Ballast for the trailer model
• 05contact11.k Defines contact between the ballast parts and the trailer.
• 15TL-5_Median_Barrier_Elastic.k Impacted bridge parapet barrier
• 15contact-tractor2010-0323.k Contact between tractor and median barrier
• 15contact-trailer2.k Contact between trailer and median barrier
• 20control1.k Defines *CONTROL, *DATABASE, *CONTACT_INTERIOR for the entire model. This file is always read in last and overrides any previous definitions of these parameters from the earlier input files.

Simulation

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