Electro-Mechanical Response of a Cracked Piezoelectric Cantilever Beam

摘要：

　　Piezoelectric ceramics are of importance to the field of aerospace,electric and electronic.However,crack often happens on the surface of piezoelectric ceramics due to harsh working environment.The purpose of this article is to study the impacts of crack on the electro-mechanical response of a piezoelectric beam.Firstly,a finite element model of the piezoelectric cantilever beam was set up by using the software of ABAQUS.And subsequently,the mechanic and electric induced response of the cantilever beam was discussed.Thereafter,a cracked piezoelectric cantilever beam was developed.The effects of crack on the electro-mechanical response of a cantilever beam were studied.Results indicate that the electro-mechanical response is proportional to the input force and the input voltage.As crack propagates,the variation rule of the electro-mechanical response depends on the crack size.This conclusion is helpful to the prediction of crack size,and to provide a new idea for the prediction of the piezoelectrical structure life.

关键词： Piezoelectric ceramic Crack Electro-mechanical response

作者: Chao Liu Wenguang Liu Yaobin Wang

作者单位: School of Aeronautical Manufacturing Engineering,Nanchang Hangkong University,Nanchang 330063,China

会议类型: 国际会议

会议名称: 2019机械设计国际会议暨第20届机械设计学术年会

会议地点: 浙江湖州

会议语种:英文

页码: 412-423

在线出版日期: 2019-08-12（万方平台首次上网日期，不代表论文的发表时间）