引用本文: 任张瑜, 谢惠民, 鞠杨. 3D打印模型在光弹性法教学中的应用研究1)[J]. 力学与实践, 2022, 44(1): 163-170.
REN Zhangyu, XIE Huimin, JU Yang. THE APPLICATION OF 3D PRINTING TECHNIQUE IN PHOTOELASTICITY TEACHING1)[J]. MECHANICS IN ENGINEERING, 2022, 44(1): 163-170.
 Citation: REN Zhangyu, XIE Huimin, JU Yang. THE APPLICATION OF 3D PRINTING TECHNIQUE IN PHOTOELASTICITY TEACHING1)[J]. MECHANICS IN ENGINEERING, 2022, 44(1): 163-170.

## THE APPLICATION OF 3D PRINTING TECHNIQUE IN PHOTOELASTICITY TEACHING1)

• 摘要: 本文将3D打印技术引入光弹性法的教学中,解决了传统技术制作光弹模型时成型周期长、试样初始残余应力较大等问题。以圆盘为例,详细介绍了3D打印光弹模型的制备过程。基于光弹系统测量得到了对径受压模型内部的等倾线、等色线相位和条纹值。制备了含不同形状孔隙的教学模型,丰富了课堂内容。展示了数字模型设计、物理模型制备、光弹条纹图采集、应力场提取等过程,有助于学生对光弹材料制造过程、测试原理与核心技术的理解。

Abstract: In this study, 3D printing technique was introduced in the teaching of photoelasticity to fabricate model, which overcome the difficulties in traditional photoelasticity method, such as time consuming and high residual stress. A disk was used as an example to showcase the fabrication processes in 3D printing. Isoclinic and isochromatic phases and the photoelastic material stress fringe value were calculated based on a photoelastic measurement system. The introducing of 3D printing technique into photoelasticity makes it possible to teach and present the whole processes, from the design of digital models, to the fabrication of physical models, to the capture of photoelastic patterns, and finally to the extracting of stress fields. It helps students to better understand the fabrication process of photoelastic materials, measurement philosophy and key technology of photoelasticity.

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