Abstract: The present disclosure provides a polymer matrix composite comprising reinforcement fibres and a (meth)acrylate copolymer matrix formed from a (meth)acrylate monomer and a halogenated flame retardant monomer; a method of preparing the polymer matrix composite, and a composition for use in the method.

Abstract: The present disclosure provides a composite comprising a (meth)acrylate polymer matrix, a halogenated organic flame retardant, an inorganic flame retardant synergist, and fibrous reinforcement, a method of preparing the polymer matrix composite, and a composition for use in the method.

Abstract: A base assembly for an aircraft seat is disclosed. The base assembly may include one or more leg sub-assemblies. Each leg sub-assembly may include a front leg, a rear leg, and a link beam configured to couple the front leg to a portion of the rear leg. At least one of the front leg or the rear leg being at least partially formed of a hybrid composite structure. The link beam being at least partially formed of the hybrid composite structure. The hybrid composite structure formed of at least a first material and a second material, where the first material is different from the second material, the first material including a thermoplastic material configured to provide ductility for the base assembly, the second material being a composite material configured to provide strength for the base assembly.

Abstract: A method for augmented reality (AR) assisted ply placement for assembly and manufacture of composite structures is disclosed. In embodiments, the method includes providing AR viewing devices to individuals directly involved in the assembly of the composite structure and loading an assembly sequence for the particular composite structure. For each step of the assembly structure, the AR viewing devices display virtual representations of each ply or layer in the order of assembly, indicating the proper positioning and orientation of each ply over adjacent previously installed layers or plies. The AR viewing devices display any operator alerts associated with assembly steps and accept control input from the operators indicating completion of an assembly step. The AR devices capture or record the completion of each step and generate a record of the full assembly sequence based on each completed step for quality assurance.

Abstract: A head-pan diaphragm structure attachable to or an integral part of a seat back structure, the head-pan diaphragm structure including high-performance fibers and the head-pan diaphragm structure positionable in a head strike target area of the seat back structure. A seat back assembly including a seat back frame member including spaced portions, a torsion bar attached between the spaced portions, a head-pan diaphragm structure positioned in a framed opening formed by the torsion bar and a portion of the seat back frame member, the head-pan diaphragm structure positioned in a head strike target area, and the head-pan diaphragm member including integrated high-performance fibers.

Abstract: A head-pan diaphragm structure attachable to or an integral part of a seat back structure, the head-pan diaphragm structure including high-performance fibers and the head-pan diaphragm structure positionable in a head strike target area of the seat back structure. A seat back assembly including a seat back frame member including spaced portions, a torsion bar attached between the spaced portions, a head-pan diaphragm structure positioned in a framed opening formed by the torsion bar and a portion of the seat back frame member, the head-pan diaphragm structure positioned in a head strike target area, and the head-pan diaphragm member including integrated high-performance fibers.

Abstract: A thermoplastic seatback for a passenger seat includes a thermoplastic peripheral structural frame for attachment to a seat assembly and a thermoplastic diaphragm overmolded onto a forward face of the frame. An aircraft passenger seat and a method of constructing a passenger seatback is also disclosed.