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Communication Dans Un Congrès Année : 2008

Investigation on time response to impact test of a 2D shape memory structure

Résumé

A numerical implementation of the RL model for shape memory alloys (SMA) is presented in the paper, adapted to high strain rate loading. The objective is to predict the time response of a 2D SMA structure subjected to an impulse force (duration 50 ms) and following free vibration with a decreasing amplitude. The choice of the material mechanical properties has been done in order to have phases transformations during the oscillations. The damping due to these phase changes is clearly identified when the results are compared with a linear model without induced martensite. The thermomechanical constitutive relation of the SMA has been fullfiled to be able to take into account time reaction when the strain rate is very high. The full model has been implemented in a finite element code and tested on a 2D sample.

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Dates et versions

hal-00347502 , version 1 (17-07-2018)

Identifiants

  • HAL Id : hal-00347502 , version 1

Citer

Manuel Collet, Morvan Ouisse, Emmanuel Foltete, Christian Lexcellent. Investigation on time response to impact test of a 2D shape memory structure. Euromech Colloquium 498 "Non linear dynamics of composite fand smart structures", 2008, Kazimierz Dolny, Poland. pp.142-145. ⟨hal-00347502⟩
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