Methods for repairing composite component voids are provided. For example, one method comprises locating a void in a composite component and subjecting the composite component to a process for repair. The process for repair includes creating a flow path through the void, applying a filler material to the composite component at the flow path, and processing the composite component having the filler material. In some embodiments, the flow path has a first opening on a first side of the composite component and a second opening on a second, opposite side of the composite component. In other embodiments, at least one portion of the flow path extends at a first angle with respect to a lateral direction defined by the CMC component, and at least another portion extends at a second angle with respect to the lateral direction.

Methods for repairing composite component voids are provided. For example, one method comprises locating a void in a composite component and subjecting the composite component to a process for repair. The process for repair includes creating a flow path through the void, applying a filler material to the composite component at the flow path, and processing the composite component having the filler material. In some embodiments, the flow path has a first opening on a first side of the composite component and a second opening on a second, opposite side of the composite component. In other embodiments, at least one portion of the flow path extends at a first angle with respect to a lateral direction defined by the CMC component, and at least another portion extends at a second angle with respect to the lateral direction.

A method of repairing erosion on a wind turbine blade while on a wind turbine includes placing a scanning device on an erosion zone. The device scans the erosion zone to gather an image and/or digital data. A printing system deposits a material according to the image and/or digital data. The repair system may include a frame such that scanning and/or depositing are with respect to the frame. A processing system interprets the image and/or digital data and produces an instruction file. Depositing the material may include depositing the material according to the instruction file. An unmanned aerial vehicle may be operated to position at least one of the scanning device and the printing system on the wind turbine blade. Alternatively, a rope/wire system may be operated to lower at least one of the scanning device and the printing system along the wind turbine blade.

A method of repairing erosion on a wind turbine blade while on a wind turbine includes placing a scanning device on an erosion zone. The device scans the erosion zone to gather an image and/or digital data. A printing system deposits a material according to the image and/or digital data. The repair system may include a frame such that scanning and/or depositing are with respect to the frame. A processing system interprets the image and/or digital data and produces an instruction file. Depositing the material may include depositing the material according to the instruction file. An unmanned aerial vehicle may be operated to position at least one of the scanning device and the printing system on the wind turbine blade. Alternatively, a rope/wire system may be operated to lower at least one of the scanning device and the printing system along the wind turbine blade.

A method may comprise applying a first adhesive to a cavity of a bond panel, the cavity defined by a raised body portion of the bond panel, inserting an acoustic insert assembly in the cavity, the acoustic insert assembly being secured in the cavity by the first adhesive, and securing edges of the acoustic insert assembly to the raised body portion of the bond panel with a second adhesive to create a seamless interface between the edges and the raised body portion.

A surface arrangement for a conveyor roller adapted for use in a conveyor system configured to support and move a conveyor medium, and a conveyor roller incorporating same. The surface arrangement has a cylindrical rotatable supporting surface, at least one shear stop member extending outwardly from the rotatable supporting surface, at least one lagging member positioned on the rotatable supporting surface, and a bond between the at least one lagging member and the rotatable supporting surface. The at least one lagging member is positioned on the rotatable supporting surface, with at least a portion of one end of the at least one lagging member abutting at least a portion of the side surface of the at least one shear stop member. The at least one shear stop member is adapted to resist movement of the at least one abutting lagging member in at least one direction along the circumference of the rotatable supporting surface to reduce a shear force exerted on the bond when the conveyor roller is in use. Methods of making and repairing the surface arrangement are also disclosed.

A surface arrangement for a conveyor roller adapted for use in a conveyor system configured to support and move a conveyor medium, and a conveyor roller incorporating same. The surface arrangement has a cylindrical rotatable supporting surface, at least one shear stop member extending outwardly from the rotatable supporting surface, at least one lagging member positioned on the rotatable supporting surface, and a bond between the at least one lagging member and the rotatable supporting surface. The at least one lagging member is positioned on the rotatable supporting surface, with at least a portion of one end of the at least one lagging member abutting at least a portion of the side surface of the at least one shear stop member. The at least one shear stop member is adapted to resist movement of the at least one abutting lagging member in at least one direction along the circumference of the rotatable supporting surface to reduce a shear force exerted on the bond when the conveyor roller is in use. Methods of making and repairing the surface arrangement are also disclosed.

In an embodiment, a plug formulation includes a mixture of a first part of a two-part epoxy system and artificial platelets formed from a polymeric material that expands upon exposure to ultraviolet (UV) light, moisture, or heat, wherein a portion of the first part of the two-part epoxy system is covalently bonded to a portion of the artificial platelets. In another embodiment, a plug formulation includes a mixture of a first part of a two-part epoxy system, an acrylate monomer, and artificial platelets formed from a polymeric material that expands upon exposure to ultraviolet (UV) light, moisture, or heat, wherein a portion of the first part of the two-part epoxy system is covalently bonded to a portion of the artificial platelets.

A continuous fabric for use in forming a repair liner for reinforcing a pipe. The fabric includes a top layer and one or more bottom layers. The width of the top layer is less than the width of the continuous fabric and the density of the top layer is less than the density of at least one of the at least one or more bottom layers. The top layer may serve as a guide for winding the fabric in an overlapping pattern about a mandrel so that the essentially only the top layer is visible in the fabric winding.

A continuous fabric for use in forming a repair liner for reinforcing a pipe. The fabric includes a top layer and one or more bottom layers. The width of the top layer is less than the width of the continuous fabric and the density of the top layer is less than the density of at least one of the at least one or more bottom layers. The top layer may serve as a guide for winding the fabric in an overlapping pattern about a mandrel so that the essentially only the top layer is visible in the fabric winding.