TY - GEN
T1 - Orientation dependence on electro-mechanical coupling behavior of 1-3 piezoelectric composites under compression
AU - Zhao, Ping
AU - Li, Jackie
PY - 2008
Y1 - 2008
N2 - The nonlinear electro-mechanical behavior of 1-3 piezoelectric composites with PZT5A1 fibers embedded in an epoxy matrix are studied under multi-axial mechanical loading. In order to evaluate the orientation effects of the polarization in PZT fibers to the overall performance of the ferroelectric composite system, the direction of the applied compressive loading is oriented by an angle of θ toward to the PZT fiber direction which is also the polarization direction. The non-linear responses in stress-strain and stress-electric displacement were measured at given loading angle θ. A two-level micromechanics theory based on irreversible thermodynamics and physics of domain switch is applied to compare with our experimental data. The theoretical results are found to be in good qualitative and quantitative agreement with our experimental data.
AB - The nonlinear electro-mechanical behavior of 1-3 piezoelectric composites with PZT5A1 fibers embedded in an epoxy matrix are studied under multi-axial mechanical loading. In order to evaluate the orientation effects of the polarization in PZT fibers to the overall performance of the ferroelectric composite system, the direction of the applied compressive loading is oriented by an angle of θ toward to the PZT fiber direction which is also the polarization direction. The non-linear responses in stress-strain and stress-electric displacement were measured at given loading angle θ. A two-level micromechanics theory based on irreversible thermodynamics and physics of domain switch is applied to compare with our experimental data. The theoretical results are found to be in good qualitative and quantitative agreement with our experimental data.
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U2 - 10.1115/SMASIS2008-312
DO - 10.1115/SMASIS2008-312
M3 - Conference contribution
AN - SCOPUS:78149398363
SN - 9780791843314
T3 - Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
SP - 167
EP - 171
BT - Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
T2 - ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
Y2 - 28 October 2008 through 30 October 2008
ER -