Journal
THIN-WALLED STRUCTURES
Volume 103, Issue -, Pages 253-262Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2015.12.026
Keywords
Omega stringer; Stiffened panel; Stability; Varying cross section; Non-rectangular skin fields
Categories
Funding
- German Ministry of Defence [FFS5]
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Modern lightweight structures commonly use stiffeners of constant cross section to increase the stability of thin shells. This paper introduces a particular Omega stringer with variable cross section, allowing an increase of local skin buckling load, through an effective partitioning of the skin fields. The present work contains a methodology to develop a feasible design for stiffened shells. Parametric studies including criteria like stability, strength and damage tolerance, are performed. Additionally, a static compression experiment is conducted. Considering actual sizing criteria it can be shown that the introduced type of stringer leads to improved load carrying capacity through weight quotients. (C) 2016 Elsevier Ltd. All rights reserved.
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