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VERSION:2.0
PRODID:-//Memento EPFL//
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SUMMARY:Virtual MEchanics GAthering -MEGA- Seminar: Breakage of transverse
 ly isotropic rock: observations from acoustic emission and X-ray computed 
 tomography
DTSTART:20210408T161500
DTEND:20210408T173000
DTSTAMP:20260510T063112Z
UID:f2927ae0da167bd0c4a493e0ff3eae9d2def71a567729a89dd600048
CATEGORIES:Conferences - Seminars
DESCRIPTION:Guanyi Lu (GEL\, EPFL)\nAbstract Shale is typically an anisot
 ropic material for which the mechanical characteristics can vary significa
 ntly along different orientations with regard to its bedding planes. In un
 derground formations\, the strength of shale shows strong dependence on th
 e pre-existing weaknesses and the water content. This study is concerned w
 ith the mechanical behavior of Marcellus shale specimens under three-point
  bending where loading is applied in different directions with respect to 
 its bedding plane orientation under both dry and saturated conditions. Aco
 ustic Emission (AE) is recorded in order to investigate the nucleation of 
 microfracturing via AE locations and Moment Tensor Analysis (MTA). Complim
 entary to the AE detection and analysis\, X‐ray Computed Tomography (CT)
  is utilized to image internal damage sustained due to loading. Additional
 ly\, visualization of the internal fracture paths using image segmentation
  on the CT results show more complex fracture systems in parallel loading 
 cases\, which brings together localized fractures generated by different m
 echanisms.\n\nBio Guanyi Lu joined the Geo-energy Laboratory (GEL) of EPF
 L in 2021. He received his PhD in Civil Engineering from University of Pit
 tsburgh. His research interests include rock/fracture mechanics\, poroelas
 ticity\, modeling on solid-fluid coupled problems\, time-dependent and ani
 sotropic characteristics of rocks. In GEL\, his research focuses on fractu
 ring experiments in different rocks to explore the non-linearity/anisotrop
 y/process zone/microcracking around the growing fractures\, and developing
  numerical tools for injection in fractured fault systems.\n 
LOCATION:https://epfl.zoom.us/s/84678428267 Passcode: 174387 https://epfl.
 zoom.us/s/84678428267
STATUS:CONFIRMED
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