A method and an apparatus for joining a composite structural member to a metallic structural member is provided. The apparatus includes a composite structural member, a metallic transitional member, and a metallic structural member. The metallic transitional member may have a substantially H-shaped
A method and an apparatus for joining a composite structural member to a metallic structural member is provided. The apparatus includes a composite structural member, a metallic transitional member, and a metallic structural member. The metallic transitional member may have a substantially H-shaped cross sectional geometry and may include at least two tapered flanges and at least one web portion. An adhesive joint may be used to attach the composite structural member to the tapered flange and the web portion. At least two welds attach the metallic transitional member to the metallic structural member.
대표청구항▼
What is claimed is: 1. An apparatus joining a composite structural member to a metallic structural member, comprising: a metallic transitional member comprising at least two tapered flanges and at least one web portion, wherein the at least two tapered flanges are adhesively attached to face sheets
What is claimed is: 1. An apparatus joining a composite structural member to a metallic structural member, comprising: a metallic transitional member comprising at least two tapered flanges and at least one web portion, wherein the at least two tapered flanges are adhesively attached to face sheets of the composite structural member, and the at least one web portion is adhesively attached to a core portion of the composite structural member, wherein the core portion is disposed between the face sheets of the composite structural member; and at least two welds joining the metallic transitional member to the metallic structural member. 2. The apparatus of claim 1, wherein the metallic transitional member has a substantially H-shaped cross sectional geometry. 3. The apparatus of claim 1, wherein the metallic transitional member includes at least one gusset. 4. The apparatus of claim 3, wherein the metallic structural member includes at least one stiffener and wherein the gusset is positioned in alignment with a stiffener on the metallic structural member. 5. The apparatus of claim 1, wherein the at least two tapered flanges of the metallic transitional member are adhesively attached to the face sheets of the composite structural member using a paste adhesive, and at least one web portion is adhesively attached to the core portion of the composite structural member using the paste adhesive. 6. A composite to metal joint assembly, comprising: a composite structural member, including a core portion, a first face sheet, and a second face sheet; adhesively attached to a metallic transitional member, having a substantially H-shaped cross-sectional geometry, and including a first tapered flange, a second tapered flange, and a web portion; and a metallic structural member welded to the metallic transitional member. 7. The composite to metal joint assembly of claim 6, wherein the composite structural member is a balsa core composite sandwich panel. 8. The composite to metal joint assembly of claim 6, wherein the first and second face sheets are made from an E-glass fabric/vinyl ester material. 9. The composite to metal joint assembly of claim 6, wherein the composite structural member is fabricated using a vacuum assisted resin transfer molding process. 10. The composite to metal joint assembly of claim 9, wherein the composite structural member is adhesively bonded to the metallic transitional member by a paste adhesive. 11. The composite to metal joint assembly of claim 6, wherein the metallic transitional member includes a gusset portion. 12. The composite to metal joint assembly of claim 11, wherein a gap is provided between the gusset portion and the metallic structural member. 13. The composite to metal joint assembly of claim 6, wherein the metallic transitional member includes a first leg portion and a second leg portion. 14. The composite to metal joint assembly of claim 13, wherein the first leg portion and the second leg portion are each welded to the metallic structural member. 15. The composite to metal joint assembly of claim 13, wherein the metallic structural member includes a first stiffener and a second stiffener that each align with the first leg portion and the second leg portion, respectively. 16. A structural apparatus securing a composite structural member to a steel deck structure of a ship, comprising: a metallic transitional member comprising a substantially H-shaped cross-sectional geometry and at least two tapered flanges which are adhesively attached to face sheets of the composite structural member; and at least two welds joining the metallic transitional member to the steel deck structure. 17. The apparatus of claim 16, wherein the metallic transitional member includes at least one web portion. 18. The apparatus of claim 17, wherein the composite structural member is further adhesively attached to the at least one web portion. 19. The apparatus of claim 16, wherein the metallic transitional member includes at least one gusset. 20. The apparatus of claim 19, wherein the steel deck structure includes at least one stiffener and wherein the at least one gusset is positioned to align with a stiffener on the steel deck structure. 21. The apparatus of claim 16, wherein the at least two tapered flanges of the metallic transitional member are adhesively attached to the face sheets of the composite structural member using a paste adhesive. 22. The apparatus of claim 1 wherein the metallic transitional member is disposed in between the composite structural member and the metallic structural member. 23. The apparatus of claim 1 wherein the metallic transitional member is disposed over a top portion of the metallic structural member and the composite structural member is disposed over a top portion of the metallic transitional member and the top portion of the metallic structural member. 24. The composite to metal joint assembly of claim 6 wherein the metallic transitional member is disposed in between the composite structural member and the metallic structural member. 25. The composite to metal joint assembly of claim 6 wherein the metallic transitional member is disposed over a top portion of the metallic structural member and the composite structural member is disposed over a top portion of the metallic transitional member and the top portion of the metallic structural member. 26. The apparatus of claim 16 wherein the metallic transitional member is disposed in between the composite structural member and the steel deck structure. 27. The apparatus of claim 16 wherein the metallic transitional member is disposed over a top portion of the steel deck structure and the composite structural member is disposed over a top portion of the metallic transitional member and the top portion of the steel deck structure. 28. The apparatus of claim 1 wherein the face sheets of the composite structural member are tapered, and wherein the core portion is disposed between the tapered face sheets of the composite structural member. 29. The structural apparatus of claim 16 wherein the face sheets of the composite structural member are tapered, and the substantially H-shaped cross-sectional geometry and the at least two tapered flanges are adhesively attached to the tapered face sheets of the composite structural member.
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Novak Miloslav (Pittsburgh PA) Rao Valisetty R. (Murrysville PA) Teply Jan L. (Monroeville PA) Antoninka Andrew P. (Lower Burrell PA) Siemon John T. (Cheswick PA) Grimm Ross E. (Tarentum PA) Byars Cl, Wall assembly for offshore use.
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