The Boeing Company

Tony Koung

Jacob Michael Hundley

Zak C Eckel

Mark O'Masta

Frederick Theodore Calkins

Phuong Bui

Michael Robert Rush

Kenneth Cante

Daniel Harvey Fletcher

Thomas H Martig

Jacob Richard Medlang

Alvin Escobar

Zak Charles Eckel

Mark R O'MASTA

A monolithic joint system for a fuselage to wing joint in an aircraft is provided. The joint system comprises a first vertical flange, a base plate, a second vertical flange, and damage containment features associated with at least one of these components. The first vertical flange is configured to connect to a fuselage section of the aircraft and the second vertical flange is configured to connect to a rib web of a wing, while the base plate attaches outboard wing to inboard wing box. The first vertical flange, the base plate, and the second vertical flange are formed from a continuous piece of material. The damage containment features are configured to slow propagation of an active crack tip in the joint system during operation of the aircraft. Thus, the illustrative embodiments provide a one-piece joint system for the fuselage to wing joint of an aircraft.

Monolithic wing to side body upper chord assembly for aircraft

A fire retardant (FR) composite composition, including a liquid polymer, wherein the liquid polymer includes a photopolymer including at least two of a first molecule, a second molecule, and a third molecule, a FR thermoset, and a photoinitiator.

FR composite composition for light-based additive manufacturing

A sandwich structure configured to be secured with a mechanical fastener includes a core assembly, which includes a polymer component configured for supporting a mechanical fastener connector insert. The core assembly further includes an open cellular component formed from a plurality of self-propagating photopolymer waveguides positioned around the polymer component, wherein a first portion of the plurality of self-propagating photopolymer waveguides is secured to and extends from the polymer component. Further included is a first face sheet secured to a first side of the core assembly, wherein the first portion of the plurality of self-propagating photopolymer waveguides has a distal end spaced apart from the polymer component and secured to the second face sheet.

Integrated fastener insert for open cellular sandwich structure and method to install

Ratcheting shape memory alloy actuators and systems and methods including the same are disclosed herein. The ratcheting shape memory alloy actuators include a ratcheting assembly that is operatively coupled to a first bracket and a shape memory alloy element that is operatively coupled to the ratcheting assembly and to a second bracket. The first bracket is configured to be operatively coupled to a first structure, while the second bracket is configured to be operatively coupled to a second structure. The shape memory alloy element is configured to apply a motive force to the ratcheting assembly upon deformation between a first conformation and a second conformation. The ratcheting assembly is configured to utilize the motive force to selectively adjust an orientation of the first structure relative to the second structure.

Ratcheting shape memory alloy actuators and systems and methods including the same

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Seattle, WA, United States of America

Tony Koung