| 摘要 |
The invention concerns novel close-outs for sandwich structures and fabrication methods. The sandwich structures are formed by superplastic forming, accordion expansion, or a combination thereof. The close-out structure is formed from a plurality of flat sheets and members of predesigned shapes and sizes that are positioned in such a manner as to form high strength structures after unfolding and expansion. The corners of the close-out structure are either rounded or angled. |
