SH Wave Scattering and Dynamic Stress Concentration in Piezomagnetic Materials with Non-Circular Openings

被引：2

作者：

Zhou, Chuanping ^{[1
]}

Weng, Jiayou ^{[1
]}

Wang, Zhiwen ^{[1
]}

Pei, Wanrong ^{[1
]}

Hu, Ning ^{[1
]}

Zhou, Rougang ^{[1
]}

Gong, Youping ^{[1
]}

机构：

[1] Hangzhou Dianzi Univ, Sch Mech Engn, Hangzhou 310018, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 12期

关键词：

piezomagnetic materials; SH wave; dynamic stress concentration coefficient; conformal mapping; non-circular opening; PROPAGATION;

D O I：

10.3390/app13126972

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The study uses complex variable functions and conformal mapping to investigate the scattering and dynamic stress concentration phenomena of SH waves in non-circular opening magnetic-elastic materials. Elastic dynamics and piezomagnetic equations are employed to derive expressions for the scattered wave intensity and dynamic stress concentration coefficient around non-circular openings. Special attention is devoted to elliptical openings, where different incident angles and dimensionless wave numbers exhibit varying effects on the dynamic stress concentration coefficients. The numerical results indicate a positive correlation between the dynamic stress concentration coefficient and the illumination region of elliptical openings, with low wave numbers exerting a more significant influence. These findings provide a valuable theoretical foundation for studying fatigue mechanics in piezomagnetic materials. Therefore, to enhance the performance and reliability of piezomagnetic materials, it is imperative to conduct elastic dynamic analysis of non-circular defects in low-frequency environments.

引用

页数：12

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