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Postbuckling and
delamination growth for delaminated piezoelectric
elastoplastic laminated beams under hygrothermal
conditions
Ying-Li Li, Yi-Ming Fu and Hong-Liang Dai |
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Vol. 7 (2012), No. 1, 85–102
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Abstract |
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The postbuckling and delamination growth for delaminated piezoelectric elastoplastic laminated beams under hygrothermal conditions are investigated. By considering hygrothermal environments, transverse shear deformation, geometrical nonlinearity and piezoelectric effect, the incremental nonlinear equilibrium equations of the piezoelectric elastoplastic laminated beams with delamination are obtained. The finite difference method and iterative method are adopted to solve the equations. Based on these, the delamination growth for the piezoelectric elastoplastic laminated beams is studied using J-integral theory. In the numerical examples, the effects of hygrothermal environments, transverse shear deformation, geometrical nonlinearity and piezoelectricity on the postbuckling behavior and delamination growth for the delaminated piezoelectric elastoplastic laminated beams are discussed in detail. |
Keywords
hygrothermal conditions, piezoelectric effect,
postbuckling, delamination growth, J-integral
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Milestones
Received: 24 December 2010
Revised: 10 April 2011
Accepted: 11 April 2011
Published: 28 March 2012
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Authors |
| Ying-Li Li | |
| State Key Lab of Advanced Design and
Manufacturing for Vehicle Body College of Mechanical and Vehicle Engineering Hunan University Changsha, 410082 China |
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| Yi-Ming Fu | |
| College of Mechanical and Vehicle
Engineering Hunan University Changsha, 410082 China |
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| Hong-Liang Dai | |
| College of Mechanical and Vehicle
Engineering Hunan University Changsha, 410082 China |
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