Multiphysics FEA Simulation for Polymer Nanocomposite Laser Ultrasound Transducer
Multiphysics FEA Simulation for Polymer Nanocomposite Laser Ultrasound Transducer
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DOI：
10.1109/nano54668.2022.9928742
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发表时间：
2022-07
期刊：
影响因子：
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通讯作者：
Sipan Liu;Howuk Kim;Wei-Yi Chang;Wenbin Huang;Xiaoning Jiang;J. Ryu
中科院分区：
文献类型：
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作者：
Sipan Liu;Howuk Kim;Wei-Yi Chang;Wenbin Huang;Xiaoning Jiang;J. Ryu
采用多尺度分层模拟方法预测了蜡烛烟灰纳米颗粒（CSNP）/PDMS激光超声换能器（LUT）的声输出。首先，利用纳米尺度单元模型估算了碳/PDMS复合材料的有效性能。其次，在COMSOL中耦合波光学、传热学、结构力学和声学模块建立了LUT模型，并利用模型生成的特性参数预测LUT表面的声输出。最后，对近场波的比例进行了理论计算。对于CSNP/PDMS LUT，我们的分层模型在时域和频域输出上都具有很高的精度。
In this study, the acoustic output of candle soot nanoparticles(CSNP)/PDMS laser ultrasound transducer (LUT) was predicted by a multiscale hierarchical simulation method. Firstly, the carbon/PDMS composites' effective properties were estimated by the nanoscale unit model. Secondly, a LUT model was developed in COMSOL by coupling Wave Optics, Heat Transfer, Structural Mechanics and Acoustics modules, and the acoustic output at the LUT surface was predicted using the properties parameters generated by the model in the first step. Lastly, the near-field wave proportion was calculated theoretically. For CSNP/PDMS LUT, our hierarchical model had high accuracy on both time and frequency domain output.