预制光斑作为增强数字图像相关性光斑图案效率的增强,用于体测试
Aimi Munirah Jalilluddin1,2, Fadzli Mohamed Nazri1, Muhammad Umar Zulkefli3
1School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Pulau Pinang, Malaysia.
MethodsX
|January 6, 2026
概括
一种新的水传输打印方法简化了用于数字图像相关性 (DIC) 的斑点图案的应用,将体分析的准备时间减少了20%. 这种技术可确保均的斑点应用,以准确的全场应变测量.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 实验力学 实验力学 实验力学
背景情况:
- 数字图像相关性 (DIC) 要求高质量的斑点图案,用于精确的应变和变形分析.
- 传统的斑点应用方法往往耗时,需要精心处理.
- 在不均的表面上实现一致的斑点忠实性是一个重大挑战.
研究的目的:
- 为了研究预制光斑应用的有效性,使用水传输印刷方法 (WTP) 对体样本进行测试.
- 与传统技术相比,评估WTP方法对准备时间和斑点图案质量的影响.
- 评估WTP方法对于需要均斑点分布的DIC应用的适用性.
主要方法:
- 开发和应用一种水传输印刷机制,用于涂抹预制斑点.
- 进行比较分析,涉及应变计和不同的斑点大小.
- 在固体粘土上进行单轴压缩测试,以评估应变测量的准确性.
主要成果:
- 在较大的标本 (> 8000 mm2) 中,WTP方法将准备时间缩短了约20%.
- 在不均的表面上保持了一致的斑点图案统一性和忠实性.
- 使用WTP方法进行的应变分析显示与传统方法有很好的一致性,提供全场测量优势.
结论:
- 水传输印刷方法提供了一个简化,用户友好和高效的替代方案,用于DIC的斑点图案.
- 该方法确保了均的斑点分布,这对于可靠的全场应变测量至关重要.
- 这种技术是实现对体和其他材料的DIC分析中一致的斑点质量的可行选择.
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