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Material and Geometric Properties of the Boeing 767-200ER

Material and Geometric Properties of the Boeing 767-200ER. Oscar Ardila Civil Engineering Purdue University. Objectives. Define material properties for the different parts included in the LS-Dyna B767 model Assign section properties to beam and shell elements in the plane model

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Material and Geometric Properties of the Boeing 767-200ER

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  1. Material and Geometric Properties of the Boeing 767-200ER Oscar Ardila Civil Engineering Purdue University

  2. Objectives • Define material properties for the different parts included in the LS-Dyna B767 model • Assign section properties to beam and shell elements in the plane model • Include mass contribution due to non-structural components not modeled

  3. Plane Parts Modeling Element types used in the B767 model: • Fuselage and wing skin, ribs and spars (wings, tail), passenger cabin floor, etc, are modeled using shell elements

  4. Plane Parts Modeling Element types used in the B767 model: • Floor supports, as well as fuselage rings and ribs are modeled using beam elements • Engine core and landing gear are modeled with solid elements (hexahedrons)

  5. Plane Parts Modeling Sectional Properties of Elements: • Limitations on available information regarding structural details of plane components make it difficult to define accurately beam element section dimensions and shell element thickness • Selected values must reflect the actual mass and stiffness distribution of the plane structure

  6. Plane Parts Modeling Materials used in the B767 model: • Most of the components of the plane structure are made of aluminum: fuselage and wing skin, ribs and spars, floor beams, fuselage rings • Engine core, landing gear supports, and skin at the regions where the fuselage meets the wings and the tail are modeled as titanium parts • No important use of steel for part modeling

  7. Empty Weight of the B767-200ER General Information • Target Mass: 83300 Kg • Purdue B767 Model Mass: ~83000 Kg • Major mass contributions come from the engines (core), fuselage (skin, rings and ribs) and wings (skin, ribs and spars)

  8. Structural Elements Wing Structure (12%) Ribs: 4600 Kg Spars: ~5000 Kg Fuselage Structure (13%) Rings: 6300 Kg Ribs: ~5000 Kg Floor Supports (8%) Floor beams: ~1500 Kg Longitudinal supports: 5600 Kg Others: Skin (25%) Fuselage: ~12000 Kg Wings and Tail: 8500 Kg Engines (10%) Core: ~7500 Kg (2 engines) Fan and Housing: 1200 Kg Empty Weight of the B767-200ERMass Contribution of Most Relevant Parts

  9. Empty Weight of the B767-200ERAdditionalMass Contributions • Some elements not included in the model make important contributions to the total mass of the plane: A/C Units: ~1500 Kg Doors: ~1500 Kg Overhead bins: 1000 Kg Cargo containers and seats: >3000 Kg • This mass is included in the model by assigning uniform non-structural mass to the floor shell elements

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