A method for assembling a box structure includes elementary parts assembled along an understructure of stiffeners and skins. The understructure and skins are made of composite material with a polymer matrix. The method includes sizing the box structure for the loads to which it is subjected and for a glued assembly. A map of the loads on the structure is obtained and a first load limit is defined depending on the probability of the structure being damaged. The understructure and the skins are assembled by gluing them. An additional layer is applied that covers the assembled elementary parts to areas of the assembled box structure where the first load limit is reached.

A method for applying a thermoreactive seam tape to a seam is provided. The thermoreactive seam tape may be positioned adjacent to the seam, which may include a first fabric surface and an adjacent second fabric surface. The thermoreactive seam tape may include an interior planar surface that engages both the first fabric surface and the second fabric surface of the seam. The thermoreactive seam tape may further include an exterior surface opposite the interior surface, where the exterior surface is substantially non-planar with respect to the interior planar surface along a length of the thermoreactive seam tape. Heat and pressure may be applied to the thermoreactive seam tape, wherein the heat and the pressure facilitate adhesion of the thermoreactive seam tape to the first fabric surface and the second fabric surface of the seam.

A method for applying a thermoreactive seam tape to a seam is provided. The thermoreactive seam tape may be positioned adjacent to the seam, which may include a first fabric surface and an adjacent second fabric surface. The thermoreactive seam tape may include an interior planar surface that engages both the first fabric surface and the second fabric surface of the seam. The thermoreactive seam tape may further include an exterior surface opposite the interior surface, where the exterior surface is substantially non-planar with respect to the interior planar surface along a length of the thermoreactive seam tape. Heat and pressure may be applied to the thermoreactive seam tape, wherein the heat and the pressure facilitate adhesion of the thermoreactive seam tape to the first fabric surface and the second fabric surface of the seam.

A method of fabricating a composite assembly may include providing a first laminate and a second laminate respectively formed of first and second composite plies, and having a respective first and second cured section and a respective first and second uncured section. The method may further include interleaving the first composite plies in the first uncured section with the second composite plies in the second uncured section to form an interfacial region. The method may additionally include curing the interfacial region to join the first laminate to the second laminate and form a unitized composite assembly.

A method of adhesively bonding a first substrate on a second substrate in an adhesive bonding zone by an adhesive joint integrating a support mesh, wherein surplus adhesive joint is folded over onto one or the other of the first or second substrates so that the support mesh is present over the entire adhesively bonded zone after curing.

An assembly includes a first part made of composite material including a polymer matrix and a second part made of metal. The two parts are assembled by opposite or assembly faces along an interface subjected to shear loads. The first part is made of a composite having continuous reinforcing fibers in a thermoplastic matrix. The second part includes, on its assembly face, a coupling form having a plurality of patterns. Each pattern has a closed contour in a plane parallel to the assembly face of the second part and extends along a direction normal to the assembly face of the second part. A method for making such an assembly is also provided.

The invention relates to a system and process of the sealing of an area of an object intended to be covered, such as an opening slot, by a sealing strip which becomes adhesive in an excited state when subjected to ultrasound. This procedure comprises the steps of: supplying a sealing strip between an object and a sonotrode having a linear application area; supporting or pressing the linear application area of the sonotrode with the sealing strip to thereby adhere the sealing strip area, which is in contact with the linear application area of the sonotrode, to a corresponding area of the object; and displacing the object in relation to the sonotrode according to a profile of the sealing area, so as to apply the sealing strip to the sealing area of the object.

The invention relates to a system and process of the sealing of an area of an object intended to be covered, such as an opening slot, by a sealing strip which becomes adhesive in an excited state when subjected to ultrasound. This procedure comprises the steps of: supplying a sealing strip between an object and a sonotrode having a linear application area; supporting or pressing the linear application area of the sonotrode with the sealing strip to thereby adhere the sealing strip area, which is in contact with the linear application area of the sonotrode, to a corresponding area of the object; and displacing the object in relation to the sonotrode according to a profile of the sealing area, so as to apply the sealing strip to the sealing area of the object.

A wind turbine blade 2 comprises a profiled contour including a leading edge 34 and a trailing edge 33 as well as a pressure side and a suction side. The profiled contour is formed by a first shell part 10 and a second shell part 15 being bonded together in a bonding region between the first and the second shell part by a curable bonding means 40. The first and the second shell part 10; 15 are formed in a fiber-reinforced polymer. The wind turbine blade further comprises resistive heating means 50 being arranged in thermal connection with the bonding means 40 such that the resistive heating means 50 supplies heat for curing of the curable bonding means 40 during assembling of the wind turbine blade.

Corner joints and methods of forming corner joints are described herein. The corner joints may provide the appearance of a mortise and tenon joint on both the exterior and interior surfaces of the corner joint, but include a mitered connection within the joint. Structures including at least one of the corner joints are also described.