Abstract
Abstract The assembly of ceramic stacks as the driver in acoustic transducers necessitates the interleaving of electrodes and jointing compounds with ceramic plates. In modelling transducers for the purpose of finite element (FE) analysis, the designer is faced with the choice either of modelling the stack in detail, leading to excessive computing demands, or of neglecting the detail of the stack construction, with consequential lack of accuracy. An approach which maintains simplicity and accuracy is to use a simple model of the stack but with material properties which represent the stack as a composite. This paper describes the methods of deriving values for these properties, with the aim of matching various performance characteristics of a simple model to those of a detailed model using known values for the properties of each material. Results are presented for a particular stack.
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