This work studied a flexible and stretchable magnetoactive elastomer (MAE) film consisting of carbonyl iron (CI) particles and polydimethylsiloxane (PDMS) elastomer matrix. The deformation of the MAE film was investigated using digital image correlation (DIC) and laser Doppler velocimetry (LDV) methods. The MAE film with free boundary is highly wrinkled under a magnetic field generated by an electromagnet with the current of 0.65 A. While in fixed boundary condition, the maximum deformation appears at the center point, and the maximum displacement reaches 0.63 mm when the current is 3 A. The finite element method (FEM) results demonstrate that the maximum internal stress and strain are 33 kPa and 2.3%, respectively. The FEM results are in good agreement with the DIC and LDV tests. With the exceptional magnetic controllability, the MAE film can find extensive applications in intelligent control systems, acoustic absorption devices, and haptics.

中文翻译：

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利用DIC，LDV和FEM的磁致弹性体薄膜的磁场诱导变形分析

这项工作研究了由羰基铁（CI）颗粒和聚二甲基硅氧烷（PDMS）弹性体基质组成的柔性可拉伸磁活性弹性体（MAE）膜。使用数字图像相关（DIC）和激光多普勒测速（LDV）方法研究了MAE膜的变形。具有自由边界的MAE膜在电磁铁产生的磁场中以0.65 A的电流高度起皱。在固定边界条件下，最大变形出现在中心点，当电流为0.63 mm时，最大位移达到0.63 mm。 3 A.有限元方法（FEM）结果表明，最大内部应力和应变分别为33 kPa和2.3％。FEM结果与DIC和LDV测试非常吻合。凭借出色的电磁可控性，