On the Determination of Edge Reinforcement Properties for Optimum Lightweight Design of Composite Stiffeners

  • Philipp WeißgraeberEmail author
  • Christian Mittelstedt
  • Wilfried Becker
Part of the Advanced Structured Materials book series (STRUCTMAT, volume 15)


In this work the determination of the properties of an edge reinforcement of a composite plate stiffener is treated. A minimum stiffness criterion for the edge reinforcement on the basis of a closed-form buckling analysis of a composite plate with edge reinforcement and elastic clamping is given. The minimum stiffness criterion is given in explicit form and in a fully dimensionless representation. A composite stiffener designed by this criterion will exhibit a local buckling mode of the web, rather than a global simultaneous buckling of both the web and the edge reinforcement. The determination of an optimum lightweight design is discussed. In an example the criterion is applied to the dimensioning of a stiffener design.


Stability Composite stiffeners Lightweight design 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Philipp Weißgraeber
    • 1
    Email author
  • Christian Mittelstedt
    • 2
  • Wilfried Becker
    • 1
  1. 1.TU DarmstadtFachgebiet StrukturmechanikDarmstadtGermany
  2. 2.Team Method and ToolsELAN GmbHHamburgGermany

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