[1]徐向阳,陈振宁,黄正,等.大型混凝土梁全场变形测量中数字散斑场的制作和应用[J].东南大学学报(自然科学版),2018,48(5):896-902.[doi:10.3969/j.issn.1001-0505.2018.05.017]
　Xu Xiangyang,Chen Zhenning,Huang Zheng,et al.Fabrication and application of digital speckle pattern in full-field measurement of deformed large concrete beams[J].Journal of Southeast University (Natural Science Edition),2018,48(5):896-902.[doi:10.3969/j.issn.1001-0505.2018.05.017]
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大型混凝土梁全场变形测量中数字散斑场的制作和应用()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
48
期数:
2018年第5期
页码:
896-902
栏目:
建筑学
出版日期:
2018-09-20

文章信息/Info

Title:
Fabrication and application of digital speckle pattern in full-field measurement of deformed large concrete beams
作者:
徐向阳1; 2; 陈振宁1; 2; 黄正1; 涂永明1; 吴刚1; 何小元1; 2
1东南大学土木工程学院, 南京 210096; 2东南大学江苏省工程力学分析重点实验室, 南京 210096
Author(s):
Xu Xiangyang1; 2;  Chen Zhenning1; 2;  Huang Zheng1;  Tu Yongming1Wu Gang1;  He Xiaoyuan1; 2
1College of Civil Engineering, Southeast University, Nanjing 210096, China
2Jiangsu key Laboratory of Engineering Mechanics, Southeast University, Nanjing 210096, China
关键词:
水转印;  大型结构实验;  数字图像相关;  数字散斑场
Keywords:
water transfer printing;  large-scale structural experiments;  digital image correlation;  digital speckle pattern
分类号:
TU198
DOI:
10.3969/j.issn.1001-0505.2018.05.017
摘要:
为了在大型试件表面制作高质量散斑场、保证数字图像相关测量时散斑场的一致性,采用具有操作简单、环境污染小、散斑质量高、易于重复等优点的水转印方法在大型钢筋混凝土薄腹梁试件表面制作优化数字散斑场.该方法将电脑生成的数字散斑场转印到试件表面,无需喷漆制作散斑场.实验结果表明,采用水转印方法制作的散斑场在测量精度、计算速度、抗噪能力方面均优于采用喷漆方法制作的散斑场.水转印方法适用于在混凝土表面制作高质量数字散斑场.采用该方法可以扩大数字图像相关方法使用范围,提高数字图像相关方法的测量精度.
Abstract:
To produce a high-quality speckle pattern on the surface of a large specimen and ensure the consistency of the speckle pattern during digital image correlation(DIC)measurement, the water transfer printing(WTP)method with the advantages of simple operation, small environmental pollution, high speckle quality, and easy repetition was adopted to fabricate the optimized digital speckle pattern on the surface of a large-scale reinforced concrete specimen with thin web girder. This method can transfer a digital speckle pattern generated by computer to the surface of the test piece without painting. The results show that the speckle pattern produced by water transfer printing is superior to the conventional speckle pattern produced by spray painting in terms of the accuracy, the calculation speed, and the anti-noise ability. The water transfer printing method is suitable for making a high-quality digital speckle field on the concrete surface. This method can expand the use of digital image correlation methods and improve the measurement accuracy of the digital image correlation methods.

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备注/Memo

备注/Memo:
收稿日期: 2018-03-08.
作者简介: 徐向阳(1994—),男,硕士生;何小元(联系人),男,博士,教授,博士生导师,mmhxy@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(11532005).
引用本文: 徐向阳,陈振宁,黄正,等.大型混凝土梁全场变形测量中数字散斑场的制作和应用[J].东南大学学报(自然科学版),2018,48(5):896-902. DOI:10.3969/j.issn.1001-0505.2018.05.017.
更新日期/Last Update: 2018-09-20