The Challenge of Reversing Theories to Hybridize Structures with Fiber Metal Laminate Design Concepts

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Abstract

To further optimize aeronautical structures, an increased level of material hybridization is required. Optimization efforts aim to identify optimal design solutions that satisfy prescribed requirements. However, this demands reversal of currently available knowledge on hybrid structural technologies, which are often formulated as theories predicting performance based on known load cases and selected material configurations. After briefly reviewing the available fundamental theories for strength, fatigue, and damage tolerance of hybrid structures, this paper discusses the challenges in reversing these theories. Solutions are proposed in which theories can be approximated to significantly reduce the computational time while maintaining the required level of accuracy.

Original languageEnglish
Number of pages8
JournalAdvanced Engineering Materials
DOIs
Publication statusE-pub ahead of print - 2018

Keywords

  • Constraint approximation
  • Design optimization
  • Fibre metal laminates

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