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    Carbon Fiber Birch Core

    Dimensions

    Our fabrication process produces a carbon fiber birch plywood sandwich structure that is exceptionally flat, stable, and lighter than a solid Carbon Fiber laminate sheet. DragonPlate™ Carbon Fiber sandwich sheets are currently available in thicknesses from .025 to .250 inches. Each laminated sheet has a symmetrical and balanced carbon fiber lay-up schedule with varying core materials. Our core materials vary (depending on thickness) from wood fiber to high-quality birch plywood. Standard sizes range from 6 x 6 inches up to 24 x 48 inches. DragonPlate offers our carbon fiber sandwich sheets in full sizes (6", 12", 18", 24" etc.) unlike some other manufacturers whose cut sizes result in up to 20% less material. Custom-sized carbon fiber sheets are available upon quotation.

    Appearance

    DragonPlate carbon fiber laminate sandwich sheets are produced with one side very shiny and clear for appearance and the other side with a dull finish for bonding. The shiny side of the carbon sheet is pristine with no bubbles or voids. All DragonPlate gloss carbon fiber sheets incorporate a .005" thick epoxy gel-coat surface, for a superior deep, rich finish. This added surface preserves the natural shape of the carbon fibers. The carbon fiber cloth literally shimmers under the crystal clear epoxy. Without this extra gel coat, the carbon fibers will appear flattened or smashed, as seen in cheaper, lesser-quality carbon fiber sheets.

    The bonding side of the carbon sheet is flat and non-reflective and the surface has the feel of a very fine fabric-like texture superimposed on the weave of the carbon fiber fabric. Both surfaces are completely sealed

    Workability

    DragonPlate Carbon Fiber Laminate sheets are easy to work with. They can be cut with a band saw, coping saw, scroll saw, end mill, or Dremel tool. They can be drilled with standard twist drills and can be assembled with fasteners or bonded with epoxy.

    What is a Sandwich Structure?

    A composite sandwich combines the superior strength and stiffness properties of carbon fiber with a lower density core material. In the case of Dragonplate sandwich sheets, the carbon fiber creates a thin laminate skin over an aircraft-grade birch plywood core. By strategically combining these materials, one is able to create a final product with a much higher stiffness-to-weight ratio than with either alone. For applications where weight is critical, Dragonplate carbon-fiber sandwich sheets may be the right fit.

    A composite sandwich structure is mechanically equivalent to a homogeneous I-Beam construction in bending. This equivalency is shown in Figure 1.

    Figure 1: Diagram showing carbon-fiber composite sandwich and equivalent I-Beam

    Referring to the picture of the sandwich structure, at the center of the beam (assuming symmetry) lies the neutral axis, which is where the internal axial stress equals zero. In Figure 2, moving from bottom to top in the diagram, the internal stresses switch from compressive to tensile. Bending stiffness is proportional to the cross-sectional moment of inertia, as well as the material modulus of elasticity. Thus for maximum bending stiffness, one should place an extremely stiff material as far from the neutral axis as possible. By placing carbon fiber furthest from the neutral axis, and filling the remaining volume with a lower density material, the result is a composite sandwich material with high stiffness to weight ratio.

    Figure 2: Comparison of internal stress distribution for solid laminate and sandwich construction in bending.

    FEA analyses comparing Dragonplate sandwich laminate with solid carbon fiber are shown in Figure 3. These calculations show the deflections of a cantilever beam with a load placed at the end. In the figure, 3/16” Dragonplate sandwich sheet is shown next to a solid carbon fiber layup of equal weight. Due to the reduced thickness of the solid carbon beam, it deflects significantly more than the equivalent beam made from Dragonplate. As the thickness increases, this disparity becomes even greater due to the large weight savings from the core. In a similar light, one can replace a solid carbon structure with a lighter one of equivalent strength and stiffness made from Dragonplate sandwich laminate.

    Figure 3: Finite element analysis comparison between Dragonplate sandwich laminate and solid carbon fiber

    Dragonplate materials were extensively tested at Cornell University through a grant from NYSTAR. Figure 4 shows a piece of Dragonplate undergoing a 3-point bending test. In addition to bending, the Cornell laboratory performed tensile, shear, and fracture testing of Dragonplate.

    Figure 4: Cornell Laboratory 3-Point Bending Test

    Please Note: For matte-finish carbon fiber sheets allow 3-5 days before the product ships.

    Sort by
    Display per page

    SKU

    DESCRIPTION

    SHEET SIZE

    SHEET THICKNESS

    CORE MATERIAL

    PRICE
    DragonPlate Carbon Fiber Birch Core
    FDPL04_0606

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 6" x 6"

    06" x 06"1/8"Birch Plywood$28.37
    485
    FDPL04_1212

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 12" x 12"

    12" x 12"1/8"Birch Plywood$93.49
    483
    FDPL04_1224

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 12" x 24"

    12" x 24"1/8"Birch Plywood$166.97
    472
    FDPL04_2424

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 24" x 24"

    24" x 24"1/8"Birch Plywood$293.94
    468
    FDPL04_2448

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 24" x 48"

    24" x 48"1/8"Birch Plywood$507.87
    545
    FDPL06_0606

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 6" x 6"

    06" x 06"3/16"Birch Plywood$30.21
    537
    FDPL06_1212

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 12" x 12"

    12" x 12"3/16"Birch Plywood$100.84
    535
    FDPL06_1224

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 12" x 24"

    12" x 24"3/16"Birch Plywood$181.67
    524
    FDPL06_2424

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 24" x 24"

    24" x 24"3/16"Birch Plywood$323.34
    520
    FDPL06_2448

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 24" x 48"

    24" x 48"3/16"Birch Plywood$566.68
    467
    FDPL03_0606

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 6" x 6"

    06" x 06"3/32"Birch Plywood$27.54
    459
    FDPL03_1212

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 12" x 12"

    12" x 12"3/32"Birch Plywood$90.15
    457
    FDPL03_1224

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 12" x 24"

    12" x 24"3/32"Birch Plywood$160.29
    446
    FDPL03_2424

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 24" x 24"

    24" x 24"3/32"Birch Plywood$280.57
    442
    FDPL03_2448

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 24" x 48"

    24" x 48"3/32"Birch Plywood$481.14
    Sku:FDPL04_0606
    DragonPlate Carbon Fiber Birch Core
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 6" x 6"

    Sheet Size:06" x 06"
    Sheet Thickness:1/8"
    Core Material:Birch Plywood
    Price:$28.37
    Sku:FDPL04_1212
    485
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 12" x 12"

    Sheet Size:12" x 12"
    Sheet Thickness:1/8"
    Core Material:Birch Plywood
    Price:$93.49
    Sku:FDPL04_1224
    483
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 12" x 24"

    Sheet Size:12" x 24"
    Sheet Thickness:1/8"
    Core Material:Birch Plywood
    Price:$166.97
    Sku:FDPL04_2424
    472
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 24" x 24"

    Sheet Size:24" x 24"
    Sheet Thickness:1/8"
    Core Material:Birch Plywood
    Price:$293.94
    Sku:FDPL04_2448
    468
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 1/8" x 24" x 48"

    Sheet Size:24" x 48"
    Sheet Thickness:1/8"
    Core Material:Birch Plywood
    Price:$507.87
    Sku:FDPL06_0606
    545
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 6" x 6"

    Sheet Size:06" x 06"
    Sheet Thickness:3/16"
    Core Material:Birch Plywood
    Price:$30.21
    Sku:FDPL06_1212
    537
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 12" x 12"

    Sheet Size:12" x 12"
    Sheet Thickness:3/16"
    Core Material:Birch Plywood
    Price:$100.84
    Sku:FDPL06_1224
    535
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 12" x 24"

    Sheet Size:12" x 24"
    Sheet Thickness:3/16"
    Core Material:Birch Plywood
    Price:$181.67
    Sku:FDPL06_2424
    524
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 24" x 24"

    Sheet Size:24" x 24"
    Sheet Thickness:3/16"
    Core Material:Birch Plywood
    Price:$323.34
    Sku:FDPL06_2448
    520
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/16" x 24" x 48"

    Sheet Size:24" x 48"
    Sheet Thickness:3/16"
    Core Material:Birch Plywood
    Price:$566.68
    Sku:FDPL03_0606
    467
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 6" x 6"

    Sheet Size:06" x 06"
    Sheet Thickness:3/32"
    Core Material:Birch Plywood
    Price:$27.54
    Sku:FDPL03_1212
    459
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 12" x 12"

    Sheet Size:12" x 12"
    Sheet Thickness:3/32"
    Core Material:Birch Plywood
    Price:$90.15
    Sku:FDPL03_1224
    457
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 12" x 24"

    Sheet Size:12" x 24"
    Sheet Thickness:3/32"
    Core Material:Birch Plywood
    Price:$160.29
    Sku:FDPL03_2424
    446
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 24" x 24"

    Sheet Size:24" x 24"
    Sheet Thickness:3/32"
    Core Material:Birch Plywood
    Price:$280.57
    Sku:FDPL03_2448
    442
    Name:

    DragonPlate Carbon Fiber Birch Core ~ 3/32" x 24" x 48"

    Sheet Size:24" x 48"
    Sheet Thickness:3/32"
    Core Material:Birch Plywood
    Price:$481.14








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