Shock Programmer, Uniaxial Energy Absorber

  • M. Dannawi
  • C. Y. Chiem
  • P. Touzelet
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)

Summary

Many systems have been investigated in the past in order to solve the problem of energy absorption under impact |1 ∼ 4|. A new system of shock programming (i.e. control of the excitation level in a target) permitting for prediction of various impact parameters as well as the total duration of the shock was realised. This system can be the main part of an energy absorber which under-goes a complex state of shock loading. The shock programmer can be realized by the dissipation of energy generated during plastic buckling of the arms. Plastic deformation of cylindrical dises can be also used or a system which combines the two concepts can be also applied. The programming of the shock as obtained can vary from an acceleration factor of a few units of g to 50,000 g (g is the gravitational acceleration) and the shock duration can be changed from 100 µs to 2 m.s. This paper in mainly concerned with the buckling mode programmer and the other type to be published later.

Keywords

Cela Etant Alors 

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Copyright information

© Springer-Verlag, Berlin, Heidelberg 1987

Authors and Affiliations

  • M. Dannawi
    • 1
  • C. Y. Chiem
    • 1
  • P. Touzelet
    • 2
  1. 1.Groupe Dynamique Matériaux et Structures (DYNAMAST)Ecole Nationale Supérieure de MécaniqueNantes CedexFrance
  2. 2.Société SEREMEEvry CedexFrance

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