Abstract:
The steady-state and transient behavior of laminated hygrothermopiezoelectric
plates is studied under the coupled effects of mechanical, electrical, thermal,
and moisture fields. A three-dimensional discrete-layer model is developed for
analyzing rectangular multilayered laminated plates with various types of boundary
condition. Excitations on the laminates are specified as surface traction, electric
potential, temperature, and/or moisture concentration on top, interlaminar,
and bottom surfaces. The discrete-layer model employs one-dimensional finite-element
approximations in the through-thickness direction and two-dimensional in-plane
analytical functions (e.g, trigonometric and polynomial functions). The transient
problem is formulated in a standard matrix form and then solved by direct step-by-step
integration using the Newmark beta method. Numerical examples are demonstrated
for problems of simply supported conditions and for hygrothermal diffusion in
an infinite plate. The discrete-layer model is verified by comparing with available
exact solutions, and also some new results are presented.
KeyWords Plus:
PIEZOELECTRIC COMPOSITE PLATES, SHEAR DEFORMATION-THEORY, DYNAMIC ANALYSIS,
FINITE-ELEMENT, BEHAVIOR
Addresses:
Heyliger PR, Colorado State Univ, Dept Civil Engn, Ft Collins, CO 80523 USA
Publisher:
TAYLOR & FRANCIS LTD, LONDON
IDS Number:
275BX
ISSN:
1075-9417