Abstract: A device for structure monitoring of a surface to which the device can be applied, includes a carrier layer and a signal processing means, wherein the carrier layer is provided with electrical conductor paths, the signal processing means is electrically connected to the conductor paths for monitoring an electrical property of the conductor paths, the carrier layer to which the electrical conductor paths are applied is slotted, so that the carrier layer has openable cuts and the electrical conductor paths have openable contact points above it, so that when the cuts are closed the contact points are also closed and when the cuts are open the contact points are also open and thus the electrical conductor paths are reversibly interrupted, and the electrical property of the conductor paths monitored by the signal processing means is selected such that it has a different value for the case of closed contact points than for open contact points.

Abstract: A pipe element is formed of a metal pipe and at least one metal connector, fastened to an end of the metal pipe such that torques and axial forces can be transmitted between the metal pipe and the metal connector. The metal connector has thread, in particular a conical thread, or a flange, by way of which the metal connector can be screwed to another metal connector of an additional pipe element in order to connect two pipe elements. The metal connector is screwed to an inner sleeve by way of a cylindrical thread so that the metal pipe is a really clamped between the metal connector on the outside and the inner sleeve on the inside in a connection region. The connection region is conically tapered toward the pipe end.

Abstract: A pipe element is formed of a metal pipe and at least one metal connector, fastened to an end of the metal pipe such that torques and axial forces can be transmitted between the metal pipe and the metal connector. The metal connector has thread, in particular a conical thread, or a flange, by way of which the metal connector can be screwed to another metal connector of an additional pipe element in order to connect two pipe elements. The metal connector is screwed to an inner sleeve by way of a cylindrical thread so that the metal pipe is a really clamped between the metal connector on the outside and the inner sleeve on the inside in a connection region. The connection region is conically tapered toward the pipe end.

Abstract: A tube of fiber-reinforced plastic has a fitting face. A process for producing the tube includes the following steps: a) winding a fiber reinforcing material onto a winding core and applying a matrix material to form the tube; b) centering a fitting shaping tool in relation to the winding core; c) pushing the fitting shaping tool in the axial direction onto the later fitting face, which is formed on an annular part of the external circumferential face of the tube, wherein the fitting shaping tool rotates relative to the tube and to the winding core at least temporarily as it is being pushed on; d) thermally treating the tube in a furnace to cure the matrix material. The shaping tool remains in contact with the part of the external circumferential face during the thermal treatment and generates a defined surface on the outer side of the tube.

Abstract: A torque transmission device includes a shaft, particularly a drive shaft for a drive train of a vehicle, and at least one coupling element which is connected with an end of the shaft. The shaft and the at least one coupling element each consists completely or at least partly of a fiber-reinforced plastic material.

Abstract: A torque transmission device includes a shaft, particularly a drive shaft for a drive train of a vehicle, and at least one coupling element which is connected with an end of the shaft. The shaft and the at least one coupling element each consists completely or at least partly of a fiber-reinforced plastic material.