论文标题
使用有限元方法（FEM）对柔性磁复合结构进行柔性磁复合结构进行建模
Modeling light-controlled actuation of flexible magnetic composite structures using the finite element method (FEM)
论文作者
论文摘要
光活性材料对各种应用具有巨大的希望。我们提出了由33.3％二氧化碳（CRO2）和66.7％聚二甲基硅氧烷（PDMS）组成的光控制柔性磁复合结构的有限元模型。该结构的尺寸为8 mm x 2 mm x 100 um，并且先前已经过实验研究。由于居里温度较低，该结构充当执行器，在外部磁场下显示出明显的挠度，并且由于激光加热而放松。使用FEM模型进行了热和磁偏转分析。仿真结果显示，在30 mt磁通密度和303 K（室温）下经历30 mt磁通量密度和160 MW激光功率时，最大结构偏转为6.08毫米（结构长度的76％）。我们将介绍模拟模型的结果，并将其与实验数据进行比较，从而再现了先前观察到的（CRO2+PDMS）的运动。该模型将使未来的断裂和疲劳分析以及扩展到新的光活性几何形状。
Photoactive materials hold great promise for a variety of applications. We present a finite element model of light-controlled flexible magnetic composite structure composed of 33.3% Chromium dioxide (CrO2) and 66.7% Polydimethylsiloxane (PDMS) by weight. The structure has a dimension of 8 mm x 2 mm x 100 um and has been previously experimentally studied. Due to the low Curie temperature, the structure acts as an actuator, shows significant deflection under the external magnetic field and relaxation due to laser heating. Thermal and magnetic deflection analysis has been performed using the FEM model. The simulation results show a maximum structural deflection of 6.08 mm (76% of the length of the structure) when subjected to 30 mT magnetic flux density and 160 mW laser power at 303 K (room temperature). We will present the results of the simulation model and comparison to experimental data reproducing the previously observed motion of the (CrO2+PDMS). This model will enable future fracture and fatigue analysis as well as extension to new photoactive geometries.
