TY - JOUR
T1 - 3D fracture behaviors of epoxy-alumina composites
T2 - Quantitative analysis of micro-CT images through digital volume correlation and LEFM
AU - Tang, Yichun
AU - Hao, Yuetong
AU - Wang, Yanran
AU - Shuai, Jianguang
AU - Chen, Jiun Shyan
AU - Du, Jing
N1 - Publisher Copyright:
© 2025
PY - 2025/10
Y1 - 2025/10
N2 - This paper presents the results of an experimental investigation of the fracture behaviors of particle-reinforced epoxy-alumina composite in three dimensions (3D). Three-point bending of single-edge notched bend specimens were performed coupling with micro X-ray computed tomography (micro-CT). The 3D full-field strain and displacement inside the specimens was computed through digital volume correlation. Linear elastic fracture mechanics theory was applied to analyze the strain field and displacement filed, respectively, to estimate the crack tip position in 3D. The crack resistance curves (R-curves) were then calculated. The effects of voxel size of the micro-CT images were studied. The implications on the accessibility of the device and the feasibility of the method were discussed.
AB - This paper presents the results of an experimental investigation of the fracture behaviors of particle-reinforced epoxy-alumina composite in three dimensions (3D). Three-point bending of single-edge notched bend specimens were performed coupling with micro X-ray computed tomography (micro-CT). The 3D full-field strain and displacement inside the specimens was computed through digital volume correlation. Linear elastic fracture mechanics theory was applied to analyze the strain field and displacement filed, respectively, to estimate the crack tip position in 3D. The crack resistance curves (R-curves) were then calculated. The effects of voxel size of the micro-CT images were studied. The implications on the accessibility of the device and the feasibility of the method were discussed.
UR - https://www.scopus.com/pages/publications/105012111068
UR - https://www.scopus.com/pages/publications/105012111068#tab=citedBy
U2 - 10.1016/j.tafmec.2025.105134
DO - 10.1016/j.tafmec.2025.105134
M3 - Article
AN - SCOPUS:105012111068
SN - 0167-8442
VL - 139
JO - Theoretical and Applied Fracture Mechanics
JF - Theoretical and Applied Fracture Mechanics
M1 - 105134
ER -