三相光敏系统中的光散射通过蒙特卡洛方法
Darshil M Shah1, Joshua P Morris1, Alireza V Amirkhizi1
1Mechanical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA. Christoper_Hansen@uml.edu.
Soft matter
|September 13, 2023
概括
数字光处理 (DLP) 用空心微球树脂的增材制造需要先进的模型. 这项研究引入了一个三相模型,根据填充剂含量预测固化尺寸,提高复杂树脂系统的准确性.
科学领域:
- 添加剂制造 添加剂制造 添加剂制造
- 材料科学 材料科学 材料科学
- 光学工程是指光学工程.
背景情况:
- 数字光处理 (DLP) 增材制造依赖于树脂系统中的精确光散射.
- 带有空洞微球的低密度树脂会产生复杂的光学行为,而目前的模型无法预测.
- 了解光散射对于3D打印零件的尺寸精度至关重要.
研究的目的:
- 在三相树脂系统 (树脂,填充剂,微球) 中模拟光散射.
- 开发基于填充剂体积分数的固尺寸的预测模型.
- 建议在DLP增材制造中用于薄膜尺寸预测的反转参数.
主要方法:
- 用米理论和一种新的蒙特卡洛模型进行光散射模拟.
- 对树脂系统进行了模拟,其中使用了10%,30%和50%体积的空心玻璃微球.
- 开发的模型预测了曲深度 (C_D) 和曲宽度 (C_W).
主要成果:
- 三相模型准确地预测了填充剂体积分数和固化尺寸之间的正相关性.
- 结果显示,加固深度和宽度增加,填充剂含量更高.
- 该模型的预测与实验数据保持一致,优于两相模型的性能.
结论:
- 这项研究阐明了三相树脂系统中的光散射复杂性.
- 开发的模型增强了用于DLP增材制造的填充树脂的设计.
- 对于复杂的,填充的树脂配方,可以准确预测固化尺寸.
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