TY - JOUR
T1 - The nonlinear behaviour of a piezoelectric wafer
T2 - Constitutive equations and simulation
AU - Kim, Sang Joo
AU - Kwak, Moon K.
PY - 2004/2
Y1 - 2004/2
N2 - A piezoelectric wafer has been widely used as a key component of actuators or sensors of a layer type. According to recent research, the piezoelectric wafer behaves in a nonlinear way under excessive electro-mechanical loadings. In the present paper, a simple one-dimensional model for the nonlinear behaviour of a piezoelectric wafer near a poled state is proposed, based on the principles of thermodynamics and a simple viscoplasticity theory. The constitutive model is rate-dependent as well as nonlinear. The predictions of the developed model are compared with experimental observations.
AB - A piezoelectric wafer has been widely used as a key component of actuators or sensors of a layer type. According to recent research, the piezoelectric wafer behaves in a nonlinear way under excessive electro-mechanical loadings. In the present paper, a simple one-dimensional model for the nonlinear behaviour of a piezoelectric wafer near a poled state is proposed, based on the principles of thermodynamics and a simple viscoplasticity theory. The constitutive model is rate-dependent as well as nonlinear. The predictions of the developed model are compared with experimental observations.
UR - http://www.scopus.com/inward/record.url?scp=1342306114&partnerID=8YFLogxK
U2 - 10.1088/0964-1726/13/1/021
DO - 10.1088/0964-1726/13/1/021
M3 - Article
AN - SCOPUS:1342306114
SN - 0964-1726
VL - 13
SP - 184
EP - 190
JO - Smart Materials and Structures
JF - Smart Materials and Structures
IS - 1
ER -