| 摘要 |
PCT No. PCT/US82/01248 Sec. 371 Date Sep. 15, 1982 Sec. 102(e) Date Sep. 15, 1982 PCT Filed Sep. 15, 1982 PCT Pub. No. WO84/01128 PCT Pub. Date Mar. 29, 1984."I" beam or web structures of laminated composite material or sheets are being stiffened by transverse webs stiffeners having a tubular configuration with flattened end portions. The flattened end is inserted between the laminated web material or sheets and cured therewith to form an integral stiffened web structure.
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