HYBRID JOINT

Abstract

A hybrid bonded-fastened (HBF) joint 100 is described. The hybrid bonded-fastened (HBF) joint comprises: a first component 110 having a first joint surface 111, wherein the first component 110 is a composite component; a second component 120 having a second joint surface 121, wherein the second component 121 is a metallic component; a set of projections 130, including a first projection 130A, mutually interlocking the first component 110 and the second component 120 via the first joint surface 111 and the second joint surface 121; and an adhesive 140 mutually adhesively bonding the first component 110 and the second component 120 via the first joint surface 111 and the second joint surface 121; wherein the adhesive 140 comprises and/or is a disbondable adhesive.

Claims

1. A hybrid bonded-fastened (HBF) joint comprising: a first component having a first joint surface, wherein the first component is a composite component, a metallic component or a ceramic component; a second component having a second joint surface, wherein the second component is a composite component, a metallic component or a ceramic component; a set of projections, including a first projection, mutually interlocking the first component and the second component via the first joint surface and the second joint surface; and an adhesive mutually adhesively bonding the first component and the second component via the first joint surface and the second joint surface; wherein the adhesive comprises and/or is a disbondable adhesive.

2. The HBF joint according to claim 1, wherein the set of projections is provided, at least in part, by the second component.

3. The HBF joint according to claim 1, wherein the first joint surface and the second joint surface mutually correspond and wherein the adhesive mutually adhesively bonds the first joint surface and the second joint surface.

4. The HBF joint according to claim 1, further comprising a metallic joint connector plate having opposed joint surfaces, wherein the metallic joint connector plate is disposed between the first joint surface and the second joint surface.

5. The HBF joint according to claim 4, wherein the set of projections is provided, at least in part, by the metallic joint connector plate.

6. The HBF joint according to claim 5, wherein the set of projections perforates the first component and optionally the second component.

7. The HBF joint according to claim 4, wherein the metallic joint connector plate comprises and/or is a ferromagnetic metal.

8. The HBF joint according to claim 4, wherein the metallic joint connector plate provides a set of electrical terminals for resistive heating thereof.

9. The HBF joint according to claim 1, further comprising a metallic joint insert, wherein the metallic joint insert is disposed between the first joint surface and the second joint surface and wherein the metallic joint insert comprises and/or is a shape memory alloy or a bimetallic strip.

10. The HBF joint according to claim 1, wherein the adhesive comprises a functional additive.

11. The HBF joint according to claim 1, wherein the second component is a composite component.

12. A method of joining a first component having a first joint surface, wherein the first component is a composite component, a metallic component or a ceramic component, and a second component having a second joint surface, wherein the second component is a composite component, a metallic component or a ceramic component, the method comprising: mutually interlocking the first component and the second component via the first joint surface and the second joint surface using a set of projections, including a first projection; and mutually adhesively bonding the first component and the second component via the first joint surface and the second joint surface using an adhesive; wherein the adhesive comprises and/or is a disbondable adhesive; thereby joining the first component and the second component using a hybrid bonded-fastened (HBF) joint.

13. The method according to claim 12, further comprising disposing a metallic joint connector plate, having opposed joint surfaces, between the first joint surface and the second joint surface.

14. A method of disjoining a hybrid bonded-fastened (HBF) joint; wherein the HBF; joint comprises: a first component having a first joint surface, wherein the first component is a composite component, a metallic component or a ceramic component; a second component having a second joint surface, wherein the second component is a composite component, a metallic component or a ceramic component; a set of projections, including a first projection, mutually interlocking the first component and the second component via the first joint surface and the second joint surface; and an adhesive mutually adhesively bonding the first component and the second component via the first joint surface and the second joint surface; wherein the adhesive comprises and/or is a disbondable adhesive, wherein the method comprises: mutually spacing apart the first component and the second component by disbonding the adhesive and thereby releasing the set of projections from the first joint surface and the second joint surface.

15. The method according to claim 14, wherein disbonding the adhesive comprises mutually spacing apart the first component and the second component.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0079] Embodiments of the invention will now be described by way of example only with reference to the figures, in which:

[0080] FIG. 1 shows a cross-section of a hybrid bonded-fastened, HBF, joint, according to an exemplary embodiment;

[0081] FIG. 2 shows a cross-section of the HBF joint of FIG. 1, after disassembly;

[0082] FIG. 3 shows a method according to an exemplary embodiment;

[0083] FIG. 4 shows a method according to an exemplary embodiment; and

[0084] FIG. 5 shows a cross-section of a hybrid bonded-fastened, HBF, joint, according to an exemplary embodiment, before joining.

DETAILED DESCRIPTION

[0085] FIG. 1 shows a cross-section of a hybrid bonded-fastened, HBF, joint 100, according to an exemplary embodiment. The hybrid bonded-fastened, HBF, joint comprises: a first component 110 having a first joint surface 111, wherein the first component 110 is a composite component; a second component 120 having a second joint surface 121, wherein the second component 121 is a metallic component; a set of projections 130, including a first projection 130A, mutually interlocking the first component 110 and the second component 120 via the first joint surface 111 and the second joint surface 121; and an adhesive 140 mutually adhesively bonding the first component 110 and the second component 120 via the first joint surface 111 and the second joint surface 121; wherein the adhesive 140 comprises and/or is a disbondable adhesive.

[0086] In this example, the set of projections 130 is provided by the second component 120. In this example, the first component 110 comprises a first set of apertures 150, including a first aperture 150A, arranged to receive the set of projections therein and/or therethrough. In this example, the first aperture 150A provides a clearance fit with respect to the first projection 130A, wherein the adhesive 140 infiltrates the first aperture 150A and mutually bonds the first projection 130A and walls of the first aperture 150A.

[0087] FIG. 2 shows a cross-section of the HBF joint 1 of FIG. 1, after disassembly.

[0088] FIG. 3 shows a method 300 according to an exemplary embodiment. The method is of joining a first component having a first joint surface, wherein the first component is a composite component, a metallic component or a ceramic component, and a second component having a second joint surface, wherein the second component is a composite component, a metallic component or a ceramic component. The method comprises: mutually interlocking the first component and the second component via the first joint surface and the second joint surface using a set of projections, including a first projection 302; and mutually adhesively bonding the first component and the second component via the first joint surface and the second joint surface using an adhesive 304; wherein the adhesive comprises and/or is a disbondable adhesive; thereby joining the first component and the second component using a hybrid bonded-fastened, HBF, joint. In this example, the first component comprises a first set of apertures, including a first aperture, arranged to receive the set of projections therein and/or therethrough. In this example, the first aperture provides a clearance fit with respect to the first projection, wherein the adhesive infiltrates the first aperture and mutually bonds the first projection and walls of the first aperture.

[0089] The method may include any of the steps described with respect to the first aspect, the second aspect and/or the third aspect.

[0090] FIG. 4 shows a method 400 according to an exemplary embodiment. The method is of disjoining a hybrid bonded-fastened, HBF, joint. The HBF joint comprises: a first component having a first joint surface, wherein the first component is a composite component, a metallic component or a ceramic component; a second component having a second joint surface, wherein the second component is a composite component, a metallic component or a ceramic component; a set of projections, including a first projection, mutually interlocking the first component and the second component via the first joint surface and the second joint surface; and an adhesive mutually adhesively bonding the first component and the second component via the first joint surface and the second joint surface; wherein the adhesive comprises and/or is a disbondable adhesive. The method comprises: mutually spacing apart the first component and the second component by disbonding the adhesive and thereby releasing the set of projections from the first joint surface and the second joint surface 402. In this example, the first component comprises a first set of apertures, including a first aperture, arranged to receive the set of projections therein and/or therethrough. In this example, the first aperture provides a clearance fit with respect to the first projection, wherein the adhesive infiltrates the first aperture and mutually bonds the first projection and walls of the first aperture. In this way, disbonding of the adhesive in the set of apertures further urges release of the set of projections therefrom. The method may include any of the steps described with respect to the first aspect, the second aspect and/or the third aspect.

[0091] FIG. 5 shows a cross-section of a hybrid bonded-fastened, HBF, joint 500, according to an exemplary embodiment, before joining. The hybrid bonded-fastened, HBF, joint comprises: a first component 510 having a first joint surface 511, wherein the first component 510 is a composite component; a second component 520 having a second joint surface 521, wherein the second component 521 is a composite component; a set of projections 530, including a first projection 530A, mutually interlocking the first component 510 and the second component 520 via the first joint surface 511 and the second joint surface 521; and an adhesive 540 mutually adhesively bonding the first component 510 and the second component 520 via the first joint surface 511 and the second joint surface 521; wherein the adhesive 540 comprises and/or is a disbondable adhesive.

[0092] In this example, the HBF joint comprises a metallic joint connector plate 560 having opposed joint surfaces, wherein the joint connector plate 560 is disposed between the first joint surface 511 and the second joint surface 521 and the set of projections 530 is provided by the joint connector plate 560. In this example, the first component 510 comprises a first set of apertures 550, including a first aperture 550A, arranged to receive the set of projections 530 therein and/or therethrough. In this example, the second component 520 comprises a second set of apertures 570, including a first aperture 570A, arranged to receive the set of projections 530 therein and/or therethrough. In this example, the first aperture 550A provides a clearance fit with respect to the first projection 530A, wherein the adhesive 540 infiltrates the first aperture 550A and mutually bonds the first projection 530A and walls of the first aperture 550A. In this example, the first projection 530A is a barbed pin. In this example, the first aperture 550A is a frustoconical aperture. In this example, respective apertures of the first set of apertures 550 and of the second set of apertures 570 are as described with respect to the first aperture 550A.