Consider A Shear Cap Section Attached To A Spar Of The Box Beam And Imagine That Upward Deflection Of The Wing Resulting 1 (84.97 KiB) Viewed 22 times
Consider a shear cap section attached to a spar of the box beam and imagine that upward deflection of the wing resulting from an upward distributed aerodynamic load has placed the shear cap in compression. This loading is not unlike the upward movement of the wing that you would see when looking out the window of a large aircraft during take-off or the coning of a rotor blade seen when a large heavily loaded helicopter is in a stable hover. Using engineering analysis tools (EXCEL, MATLAB, CATIA, SOLIDWORKS, etc.) first model, analyze and plot the shear properties for the sandwich core given an applied compressive centric load range from 0.0 to 600 pounds force. Assume the given dimensions and material properties provided. In this module (part 1) discussion assume "L" direction properties. 1. The honeycomb cell wall thickness is 0.015 inch; the cell diameter is 0.25 inch and the height of a core cell is 0.50 inch. 2. The honeycomb material is Nomex (Aramid Fiber) and the specimen dimension are thickness Q.5 inch, width 1.80 inches, and length 6.0 inches. Material Ultimate Tensile Stress Ultimate Shear Shear Modulus Strength Plate Shear 15-5PH Stainless Steel 150 ksi L Direction W Direction Adhesive 4.2 ksi Strength psi Modulus ksi Strength psi Modulus ksi Honeycomb 105 4 50 2 +45 Crossply 136 ksi 6.3 ksi 0.72 Msi Note below how the honeycomb cell geometry is defined and measured; good to know that the ribbon direction (L) is the stronger direction of a core sample and "goes with the pointed part" of the cell. The enlarged sample on the left is 1/4" cell honeycomb that has a 2-pound density per cubic foot and the other sample is a 3-pound density with 1/8" cell.
"L" Direction with "Ribbon" րոպոլուրերի մա பெரியாயப்பாட் redviking.com RING "w" Direction against the "Ribbon" "L" Direction with "Ribbon" "w" Direction against the "Ribbon" TE
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