Robust design – A concept for imperfection insensitive composite structures
Lee, M.C.W. and Mikulik, Z. and Kelly, D.W. and Thomson, R. and Degenhardt, Richard (2010) Robust design – A concept for imperfection insensitive composite structures. Composite Structures, 92 (6), pp. 1469-1477. Elsevier Ltd.. DOI: 101016/j.compstruct.2009.09.0549. ISSN 0263-8223.
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Robust design is a philosophy that aims to ensure that a structure will be tolerant to unknown variations and imperfections. This is an important consideration as highly optimised critical structures are required to survive unexpected loading and operating conditions. In some ways, robust design appears to be similar to damage tolerant design but its application to aerospace structural design is neither well established nor understood. In order to demonstrate the differences between the two concepts, a stiffened composite panel has been analysed for damage tolerance and robustness properties. Damage tolerance has been studied experimentally with the panel subjected to impact damage. The effect of laminate stacking sequence on the robustness of the panel has been assessed using finite element analysis and a Robust Index applied to quantify the robustness. The differences between designs are discussed together with the possible future directions for robust design applied to aerospace composite structures.
|Title:||Robust design – A concept for imperfection insensitive composite structures|
|Journal or Publication Title:||Composite Structures|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 1469-1477|
|Keywords:||Defects; Statistical properties/methods; Robust design; Damage tolerant design; Stiffened composite structures; COCOMAT|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Structures & Materials|
|Institutes and Institutions:||Institute of Composite Structures and Adaptive Systems > Structural Mechanics|
|Deposited By:||Doris Ries|
|Deposited On:||22 Jun 2010 09:36|
|Last Modified:||04 Apr 2013 16:22|
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