| Autor: |
Wu LB; Department of Mechanics, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China.; China Construction Second Bureau Installation Engineering Co., Ltd., Beijing 100176, China., Fan YF; China Construction Second Bureau Installation Engineering Co., Ltd., Beijing 100176, China., Sun FB; China Construction Second Engineering Bureau Co., Ltd., Beijing 100160, China., Yao K; Department of Mechanics, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China., Wang YS; Department of Mechanics, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China.; Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China. |
| Abstrakt: |
In this letter, we propose a nonlinear Magnetoelastic Energy (ME) with a material parameter related to electron interactions. An attenuating term is contained in the formula of the proposed nonlinear ME, which can predict the variation in the anisotropic magneto-crystalline constants induced by external stress more accurately than the classical linear ME. The domain wall velocity under stress and magnetic field can be predicted accurately based on the nonlinear ME. The proposed nonlinear ME model is concise and easy to use. It is important in sensor analysis and production, magneto-acoustic coupling motivation, magnetoelastic excitation, etc. |
