Modelling of multilayer actuator layers by homogenisation technique using Digimat software

被引：23
|
作者：
Trzepiecinski, Tomasz [1 ]
Ryzinska, Grazyna [1 ]
Biglar, Mojtaba [1 ]
Gromada, Magdalena [2 ]
机构：
[1] Rzeszow Univ Technol, Dept Mat Forming & Proc, Al Powstancow Warszawy 8, PL-35959 Rzeszow, Poland
[2] Inst Power Engn, Ceram Dept CEREL, Ul Tech 1, PL-36040 Boguchwala, Poland
来源：
CERAMICS INTERNATIONAL | 2017年 / 43卷 / 03期
关键词：
Barium titanate; Ceramic; Digimat; Homogenisation; Microstructure; MATRIX; COMPOSITES; GENERATION; BEHAVIOR;
D O I：
10.1016/j.ceramint.2016.11.157
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper is concerned with the microstructure of adhesive joints composed of BaTiO3 ceramic material and two kinds of adhesives, with a special emphasis on the numerical modelling of grain size, shape and material porosity. BaTiO3 powder for use in stacked-disk multilayer actuator production is manufactured using the solid-state technique. The properties of BaTiO3 material at each stage of its fabrication that influence its application for the stacked-disk multilayer actuator are presented and discussed. The parameters characterising the properties of the fabricated pellets are also described. Implicit time-discretisation and consistent tangent operators are employed. A 3D microstructure model of BaTiO3 using Digimat-FE software is generated. Then, effective elastic constants of BaTiO3 and epoxy adhesive composites are calculated by numerical simulation. The Mori-Tanaka homogenisation scheme for representative volume elements of BaTiO (3) and epoxy adhesives composites is carried out using Digimat-MF software in order to obtain failure characteristics of the composite material.
引用
收藏
页码：3259 / 3266
页数：8
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