Dynamic anti-plane behavior for a semi-infinite piezoelectric medium with a locally debonded cylindrical inclusion near the surface
Source abstract
Abstract
The problem of dynamically debonded cylindrical inclusion near the interface of semi-infinite piezoelectric materials was theoretically investigated. The effects of different geometric and physical parameters on the dynamic stress intensity factor (DSIF) of the crack tip are discussed. The theoretical expressions for the crack (debonding) DSIF were obtained using methods that included Green’s function, the complex variable function, and multipolar coordinates, and the numerical results showed that the dynamic characteristics of the debonded structure were more obvious under conditions of low frequency and large piezoelectric characteristic parameters. In addition, the period of the DSIF at the crack tip became shorter as the incident wave number increased. There are, therefore, important theoretical and engineering considerations for the dynamic analysis of piezoelectric materials with debonded cylindrical inclusion.
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Research context
OpenAlex topics: Numerical methods in engineering · Ultrasonics and Acoustic Wave Propagation · Geotechnical Engineering and Underground Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Aerospace and Civil Engineering, Harbin Engineering University , Harbin 150001, China
Funding
National Sicence and Technology Majoy Project of the Ministry of Science and Technology of China [Large Advanced PWR Nuclear Power Station] · China University Scientific Fund · The Fundamental Research Funds in Heilongjiang Provincial Universities
References (26)
Show source-provided references
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