A fiber-reinforced polymer composite component formed from a polymer matrix material containing fiber reinforcement. The component comprises a main portion and at least one raised feature extending from a surface plane s of said main portion. The at least one raised feature is arranged to incur visually perceptible damage when the component is subject to an impact with an energy above a predetermined impact energy threshold and to resist an impact with an energy below the predetermined impact energy threshold.

A method and apparatus for the additive manufacturing of three-dimensional objects are disclosed. Two or more materials are extruded simultaneously as a composite, with at least one material in liquid form and at least one material in a solid continuous strand completely encased within the liquid material. A means of curing the liquid material after extrusion hardens the composite. A part is constructed using a series of extruded composite paths. The strand material within the composite contains specific chemical, mechanical, or electrical characteristics that instill the object with enhanced capabilities not possible with only one material.

A fiber-reinforced resin prepreg and a molded article obtained by molding a molding material including the fiber-reinforced resin prepreg are described. The fiber-reinforced resin prepreg contains a carbon fiber bundle and a matrix resin composition. The ipa value of the carbon fiber bundle measured by an electrochemical measurement method is 0.14 A/cm.sup.2 or more. The impact strength of a film obtained by solidifying the matrix resin composition under particular molding conditions is 12.0 kJ/m or more.

A system for manufacturing modular aircraft includes at least at least a common tooling component, including at least one or more of a first component in a shape of a nose and a second component in a shape of a wing. The system further including at least a modular tooling component in a shape of a main body, wherein connecting the at least a common tooling components to the at least modular component forms a mold in a shape of at least a portion of a blended wing body (BWB) aircraft with no clear demarcation between the shape of the wing and a shape of a main body along an edge of the shape of the BWB.

The present disclosure provides a molding system for fabricating a FRP composite article. The molding system includes a detector, a resin dispenser, a processing module, and a molding machine. The detector is configured to capture a graph of a woven fiber from a top view. The resin dispenser is configured to provide a resin to the woven fiber to form a FRP. The processing module is configured to receive the graph and a plurality of parameters of the FRP. The processing module includes a CNN model, and is configured to use the CNN model to obtain a plurality of predicted mechanical properties of the FRP according to the graph and the plurality of parameters of the FRP. The molding machine is configured to mold the FRP to fabricate the FRP composite article according to the plurality of predicted mechanical properties.

An object of the present disclosure is to provide a method of recycling carbon fibers that allows efficiently obtaining carbon fibers suitable for reuse. An embodiment is the method of recycling carbon fibers that includes: preparing a carbon fiber reinforced plastic molded product containing a carbon fiber reinforced plastic containing a carbon fiber and a resin; performing a process of at least one of a heating process or an ultraviolet irradiation process on the carbon fiber reinforced plastic molded product; and removing the resin after the process from the carbon fiber by injecting a first liquid to at least the carbon fiber of the carbon fiber reinforced plastic molded product after the process.

The present invention provides a molding precursor for a fiber-reinforced polyimide resin molded article, which is formed by impregnating a functional fiber with an addition-reaction type polyimide resin. The molding precursor has a melt viscosity in the range of 300 to 3200 kPa.Math.s under conditions of keeping for 1 to 10 minutes at a temperature 5 to 20 C. lower than the thickening-start temperature so as to effectively prevent a fiber-reinforced polyimide resin molded article from warping. The present invention provides also a method for producing the molding precursor.

There is disclosed a method of providing through-thickness reinforcement in a laminated material. A guide foot is moved to a datum location relative the laminated material, at which the guide foot abuts a reinforcement zone on a surface of the laminated material. An insertion operation is conducted by inserting an insertion element through the guide foot into the laminated material along an insertion direction when the guide foot is in the datum location. The insertion element comprises a needle for forming a hole in the laminated material; a reinforcement rod to be received in the laminated material; or a tamping pin for tamping a reinforcement rod received in the laminated material. A corresponding insertion apparatus is disclosed.

A method and apparatus for the additive manufacturing of three-dimensional objects are disclosed. Two or more materials are extruded simultaneously as a composite, with at least one material in liquid form and at least one material in a solid continuous strand completely encased within the liquid material. A means of curing the liquid material after extrusion hardens the composite. A part is constructed using a series of extruded composite paths. The strand material within the composite contains specific chemical, mechanical, or electrical characteristics that instill the object with enhanced capabilities not possible with only one material.

The purpose of the present invention is to provide a sandwich structure that has both excellent heat dissipation properties and excellent mechanical properties. In order to achieve this purpose, the sandwich structure of the present invention has the following structure. The sandwich structure includes a core member (I), and a fiber reinforced member (II) disposed on both sides of the core member (I), wherein the core member (I) includes a sheet-shaped heat conductive member (III) having an in-plane thermal conductivity of 300 W/m.Math.K or more.