Acta Mechanica Solida Sinica

, Volume 19, Issue 3, pp 189–195 | Cite as

Meso-mechanical analysis of shape memory alloy reinforced smart structure with damage



The mechanical behaviors of shape memory alloy (SMA) wires reinforced smart structure with damage were analyzed through the variational principle, a governing equation for the structure was derived, mathematical expressions for the meso-displacement field, stress-strain field of typical element with damage were presented, and a failure criterion for interface failure between SMA wires and matrix was established under two kinds of actuation which are dead-load and temperature, where the temperature is included in effective free restoring strain. In addition, there are some other composing factors in the failure criterion such as the interface properties, dynamical properties of SMA, initial debonding length L - l etc. The results are significant to understand structural strength self-adapted control and failure mechanism of SMA wires reinforced smart structure with damage.

Key words

smart structures damage shape memory alloy failure meso-mechanical analysis variational principle 


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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2006

Authors and Affiliations

  • Zili Hu
    • 1
  1. 1.Institute of Unmanned AircraftNanjing University of Aeronautics and AstronauticsNanjingChina

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