Assembly of a first and second panel
There is provided an assembly of a first panel ( 1 ) and a second panel ( 2 ), wherein a head end surface ( 12 ) of the first panel is connected to a side surface ( 22 ) of the second panel, the assembly having an L-shape or T-shape when seen in a cross sectional view. The panels are bonded using at least a first adhesive ( 4 ) having a first elastic modulus (λ 1 ) and a second adhesive ( 5 ) having a second elastic modulus (λ 2 ) that is lower than the first elastic modulus (λ 1 ). The first adhesive bonds the panels in a first region, and the second adhesive bonds the panels in a second region, wherein the second region is arranged next to the first region, when seen in the cross sectional view.
1. An assembly comprised of:
a first panel having a head end surface and a second panel having a side surface, wherein
the head end surface of the first panel is connected to the side surface of the second panel such that the assembly has an L-shape or T-shape when seen in a cross sectional view, and wherein
the first and second panels are bonded together by at least a first adhesive having a first elastic modulus and a second adhesive having a second elastic modulus that is lower than the first elastic modulus, wherein
the first adhesive bonds the panels in a first region, and the second adhesive bonds the panels in a second region, the second region being arranged next to the first region when seen in the cross sectional view.
2. The assembly according to claim 1 , wherein the first and second panels form an L-shaped joint, and wherein the second adhesive seals the first adhesive from an enclosed space that is bounded by the first and second panels.
3. The assembly according to claim 1 , wherein the first panel is a floor panel of a vehicle, and the second panel is a wall panel of the vehicle.
4. The assembly according to claim 1 , wherein the first panel and the second panel are shaped so as to create a region having a wedge shape in the cross-sectional view which is at least partly filled with the second adhesive.
5. The assembly according to claim 1 , wherein the assembly comprises an extension arranged on the first panel to effectively increase the head end surface of the first panel, and wherein the second adhesive is arranged between the extension and the side surface of the second panel.
6. The assembly according to claim 5 , wherein the extension comprises an L-profile coupled to the first panel at a side surface of the first panel near the head end.
7. The assembly according to claim 6 , wherein the extension comprises metal with a stiffness between 70000 MPa and 210000 MPa.
8. The assembly according to claim 1 , wherein the first elastic modulus is in a range between 500-2000 MPa.
9. The assembly according to claim 1 , wherein the second elastic modulus is in a range between 5-20 MPa.
10. The assembly according to claim 1 , wherein the first adhesive comprises a two-component epoxy.
11. The assembly according to claim 1 , wherein the second adhesive comprises a silyl-modified polymer or polyurethane polymer.
12. A vehicle body comprising the assembly according to claim 1 .
13. The vehicle body according to claim 12 , wherein the vehicle body is a body for a high occupancy vehicle.
14. The vehicle body according to claim 13 , wherein the vehicle body is a body for a public transport bus.
15. A method of connecting a first panel and a second panel to provide the assembly according to claim 1 , the method comprising:
(i) providing at least part of the head end surface of the first panel with the first adhesive having the first elastic modulus;
(ii) placing the head end surface of the first panel onto the side surface of the second panel; and
(iii) inserting the second adhesive having the second elastic modulus between the head end surface of the first panel and the side surface of the second panel.