Composite laminate and method of manufacture
View Patent ↗A composite laminate is made by providing at least a first composite ply and a second composite ply, each having longitudinally oriented fibers in a thermoplastic matrix. The second composite ply is disposed on, and in transverse relation to, the first composite ply. Preferably, the second ply is disposed at 90° relative to the first ply. An article can be manufactured by providing a core material and applying a reinforcing material to a portion of the core material. The reinforcing material is a reinforcing composite ply or a composite laminate as described herein. Optionally, the core material is a prepreg that may be a composite laminate.
1. A composite laminate comprising:
a plurality of composite plies including at least a first composite ply and a second composite ply, each composite ply comprising a plurality of longitudinally oriented fibers in a thermoplastic matrix, and the matrix substantially excludes a thermosetting material, and the fibers of the first composite ply comprise one or more of a different material than the fibers in the second composite ply;
wherein the plurality of composite plies are bonded together to form a planar sheet and wherein the first composite ply is disposed with the fibers therein oriented in transverse relation to the fibers in the second composite ply; and
a reinforcement ply provided to only a selected, localized portion of the planar sheet to provide localized reinforcement of the planar sheet, wherein the localized reinforcement is less than 100% of the second composite ply.
2. The composite laminate of claim 1 wherein the fibers in the first composite ply are disposed at about 90° relative to the fibers in the second composite ply.
3. The composite laminate of claim 2 wherein the composite laminate is configured to be a ballistic panel.
4. The composite laminate of claim 1 wherein the plurality of longitudinally oriented fibers in the thermoplastic matrix of each of the first composite ply and the second composite ply are encapsulated in the thermoplastic matrix material.
5. The composite laminate of claim 1 wherein the composite laminate is in the form of a tape.