Experimental Research on Impact Resistance Test of Polycrystalline Diamond Compact Based on Digital Image Correlation Method

Yuanjing Zhao; Jian Shi; Xinfeng Xu

doi:10.54097/951e4a53

Authors

Yuanjing Zhao
Jian Shi
Xinfeng Xu

DOI:

https://doi.org/10.54097/951e4a53

Keywords:

Digital Image Correlation; Polycrystalline Diamond Compact; Impact resistance; Strain.

Abstract

In this study, the impact resistance of Polycrystalline Diamond Compact (PDC) was studied with DIT drop weight tester and high speed camera. The surface of PDC was analyzed by Digital Image Correlation (DIC). The reason of impact failure of PDC was obtained by using the surface strain field of PDC. The results show that local delamination occurs near the impact point of the polycrystalline layer. The brittle fracture occurs at the maximum tensile strain of the impact resistant composite sheet. The quantitative relationship between the surface strain and the image obtained by DIC can effectively reflect the whole process of PDC composite failure, and can reasonably explain the failure process of PDC composite, and provide scientific research methods for engineering applications.

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