[1] Hu Zili, Zhou Wanlin,. Meso-mechanical analyses of shape memory alloy wiresreinforced smart structures with damages [J]. Journal of Southeast University (English Edition), 2005, 21 (1): 97-101. [doi:10.3969/j.issn.1003-7985.2005.01.021]

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Meso-mechanical analyses of shape memory alloy wiresreinforced smart structures with damages()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

21

Issue:

2005 1

Page:

97-101

Research Field:

Materials Sciences and Engineering

Publishing date:

2005-03-30

Info

Title:

Meso-mechanical analyses of shape memory alloy wiresreinforced smart structures with damages

Author(s):

Hu Zili;  Zhou Wanlin

Aeronautical Science Key Laboratory for Smart Materials and Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Keywords:

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

PACS:

TB330.1;TB381

DOI:

10.3969/j.issn.1003-7985.2005.01.021

Abstract:

The thermo-mechanical behaviors of shape memory alloy(SMA)wires reinforced smart structures with damages are analyzed through variational principle and meso-mechanical method.A governing equation on the structure is derived.Mathematical expressions on meso-displacement field, stress-strain field of typical element with damages are presented.A failure criterion for interface failure between SMA wires and matrix is 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 interface properties, thermodynamical properties of SMA, initial debonding length L-l, etc.The results are significant to understand structural strength self-adaptive control and failure mechanism of SMA wires reinforced smart structures with damages, and provide a theoretical foundation for further study on the integrity of SMA smart structures.

References:

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Memo

Memo:

Biography: Hu Zili(1964—), male, doctor, associate researcher, huzlgp@163.com.

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