Imperial College London
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DrJianshengXiang

Faculty of Engineering, Department of Earth Science & Engineering

Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 6534j.xiang

 
 
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Location

 

4.90Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Chen:2019,
author = {Chen, B and Latham, JP and Xiang, J and Bakker, RR},
title = {Experimental and numerical investigation of the microscale failure mechanism of a porous sandstone during Brazilian tensile test conditions},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Rock failure is normally simulated with the mesoscale or macroscale model and the corresponding damage or fracture model based on laboratory scale intact strength parameters. The mesoscale or macroscale model predicts the rock failure plausibly in mesoscale or macro scale problems but may fail in some specific failure mechanisms where the microstructure is believed to play an important role. As an initial step of investigating the complex failure mechanism of sandstone in the context of water jet drilling, the microstructure model of the sandstone was constructed based on CT-scan data in this work and the corresponding failure mechanism during Brazilian tensile test was analyzed. A novel CT-scan based approach is proposed to mimic sandstone microstructure in the numerical model and a compromise between the accuracy of the microstructure model and the computation cost is reached. The microstructure model is solved with the FEMDEM. The capacity of the proposed model in simulating microscale failure of sandstone is well proved in numerical cases.
AU  - Chen,B
AU  - Latham,JP
AU  - Xiang,J
AU  - Bakker,RR
PY  - 2019///
TI  - Experimental and numerical investigation of the microscale failure mechanism of a porous sandstone during Brazilian tensile test conditions
ER  -
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