About
11
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Introduction
Current institution
Current position
- Ph.d.-studerende·Institut for Miljø- og Ressourceteknologi
Additional affiliations
July 2021 - July 2022
Position
- Research Assistant
Description
- Developing an application to visualize and quantitatively analyze three-dimensional micro-structure in fractured cement-based composite materials by automatically processing X-ray computed tomography (XCT) images.
Education
September 2018 - June 2021
September 2012 - June 2016
Publications
Publications (11)
Accurate detection of fine damage in composite materials is essential for advancing research and
engineering practices in various industries. This study introduces a novel method for detecting
fine damage by integrating Digital Volume Correlation (DVC) and U-Net. X-ray computed tomography
(XCT) images are analyzed to correlate microstructural featu...
Self-healing is one of the research hotspots in composite materials, but evaluating healing performance has always been challenging. This study proposed a novel method to distinguish between mechanically healed cracks and unhealed cracks with non-adhesion filling by utilizing in-situ X-ray computed tomography (XCT) and digital volume correlation (D...
The integrality and connectivity of detected cracks are critical to quantitatively analyzing the fracture patterns of cementitious
materials using X-ray computed tomography (XCT). Owing to noise, uneven gray values, pores, and other additions with gray values similar
to those of the cracks in the raw images, image segmentation results of microcrack...
摘要:
为提高混凝土的受拉性能，通常会在混凝土中添加纤维材料改善材料的力学性能．纤维混凝土在受外力荷载时，内部应变场非常复杂，现有技术很难对应变进行测量．采用X射线断层扫描（X-ray computed tomography, XCT）原位三点抗折实验，对纤维混凝土加载过程进行跟踪测试，用数字体积相关（digital volume correlation, DVC）计算不同纤维质量分数的试样在不同加载阶段材料内部的体应变．结果表明，在混凝土中加入纤维能较好地改善混凝土的断裂性能，明显减少裂缝的长度、宽度和体积．通过XCT结合DVC的方法得到不同纤维质量分数试样在不同加载阶段的体应变演化，发现试样破坏时，断裂面外仍然存在着不可忽略的变形耗能．通过体应变的分析可以得到试样受载后的内部变形响应．...
In order to improve the plasticity of composites, rubber is usually incorporated in cement composites, but the rubber greatly increases complexity in the analysis of internal structures. In this study, X-ray computed tomography (XCT) and digital volume correlation (DVC) were adopted to investigate the internal structure and volumetric strain of rub...
In order to improve the ductilityof cement-based materials, rubber is often added to cement-based materials. But the rubber-cement interface will introduce more initial defects, and make the three dimensional images obtained by the X-ray micro-computed tomography (X-ray μCT) technology more complex, and finally, which leads to the full threshold me...
As a combination of a brittle cement matrix and ductile rubber particles, rubberized concrete has complex fracture characteristics at the microscale level. To better understand the fracture pattern of rubberized concrete, in this study, a novel image processing method is developed to extract the cracks in the specimens accurately, especially the mi...
Due to the complexity of the interior of a rubber-cement composites, its internal stress/strain is very complex. In this study, a digital volume correlation based on X-ray computed tomography was used to obtain the interior volumetric displacement and volumetric strain of the rubber-cement composites under uniaxial compression. The results showed t...
Questions
Questions (3)
The global higher education sector is undergoing upheaval as COVID-19 forces domestic students off campuses, out of labs and into a world of virtual learning.
During my first and postgraduate years, my circle of friends included several people who were studying for their PhD. It was easy to see how our lives had changed. My day was full of classes and assignments (and quite a bit of free time), most of their free time. Or so I thought. They got paid to study, and I did not get paid for my efforts. So, the grass is definitely green in the PhD patch.
If you have certain qualities, your path to scientific research will be easier, these are the people who are better suited to scientific research.
