| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7168905 | Engineering Fracture Mechanics | 2018 | 22 Pages |
Abstract
The influences of mode II loading on fracture process in Berea sandstone were investigated by comparing mode I and mixed-mode fractures that were created by center and eccentric notch beams under three-point bending. Fracture process was characterized by Acoustic Emission (AE) and related energy. Experimental results show mode II loading does not affect the length of fully-developed fracture process zone and maximum value of AE energy. However, it affects the zone from reaching fully-developed stage, i.e., mixed-mode fracture before or at peak load, and mode I after the peak. It also breaks the similarity and symmetry of AE events pattern.
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Authors
Qing Lin, Dengtian Mao, Shan Wang, Shiyuan Li,