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.
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页数：12
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