Thermal Effects on Geometrically Nonlinear Vibrations of Rectangular Plates With Fixed Ends Available to Purchase

Large-amplitude vibrations of rectangular plates subjected to harmonic excitation and thermal loads are investigated. The von Ka´rma´n nonlinear strain-displacement relationships are used to describe the geometric nonlinearity and the effect of thermal loads are included. Calculations are performed for a AISI 304 stainless-steel thin plate which has been tested experimentally. The plate is fixed to a AISI 410 stainless-steel frame which has a different coefficient of thermal expansion. Both calculations and experiments show a very large effect of temperature changes of the order of one degree Celsius on the nonlinear results.