Magnetoelastic Coupled Wave Diffraction and Dynamic Stress Intensity Factor in Graded Piezomagnetic Composites with a Cylindrical Aperture

被引：4

作者：

Jiang, Yinhuan ^{[1
]}

Zhou, Chuanping ^{[2
,3
]}

Wang, Ban ^{[4
]}

Wu, Liqun ^{[3
]}

机构：

[1] Jiangsu Coll Safety Technol, Xuzhou 221000, Jiangsu, Peoples R China

[2] China Univ Min & Technol, Sch Mechatron Engn, Xuzhou 221116, Jiangsu, Peoples R China

[3] Hangzhou Dianzi Univ, Sch Mech Engn, Key Lab Mech Equipment & Technol Marine Machinery, Hangzhou 310018, Peoples R China

[4] Zhejiang Univ, Coll Elect Engn, Hangzhou 310027, Peoples R China

来源：

MATERIALS | 2020年 / 13卷 / 03期

基金：

中国国家自然科学基金;

关键词：

exponential graded piezomagnetic composites; magnetoelastic coupling wave; aperture; dynamic stress intensity factor; SH-WAVES; PROPAGATION; SCATTERING; LAYER;

D O I：

10.3390/ma13030669

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A theoretical method is developed to study the magnetoelastic coupled wave and dynamic stress intensity around a cylindrical aperture in exponential graded piezomagnetic materials. By employing the decoupling technique, the coupled magnetoelastic governing equations are decomposed. Then the analytic solutions of elastic wave fields and magnetic fields are presented by using the wave function expansion method. By satisfying the boundary conditions of the aperture, the mode coefficients, and the analytic solutions of dynamic stress intensity factors are determined. The numerical examples of the dynamic stress intensity factor near the aperture are presented. The numerical results indicate that the incident wave number, the piezomagnetic properties, and the nonhomogeneous parameter of materials highly influence the dynamic stress around the aperture.

引用

页数：11

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