MICRO-CRACKING

作品数：8被引量：24H指数：3
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相关期刊：《Journal of Wuhan University of Technology(Materials Science)》《International Journal of Mining Science and Technology》《Collagen and Leather》《Transactions of Nonferrous Metals Society of China》更多>>
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Propagation criterion of hydraulic fracture in rock based on the rock micro-cracking mechanism
《International Journal of Mining Science and Technology》2025年第3期433-449,共17页Qingwang Cai Bingxiang Huang Xinglong Zhao Yuekun Xing 
supported by the National Key Research and Development Program of China (No.2021YFC2902102);the National Natural Science Foundation of China (Nos.52374103 and 52274013)。
Hydraulic fracture(HF)formed in rock significantly helps with the development of geo-energy and georesources.The HF formation condition was challenging to understand,with obscure rock micro-cracking mechanisms being a...
关键词：Hydraulic fracture Propagation criterion Micro-cracking mechanism Pore pressure Stress singularity 
High performance strain sensor based on leather activated by micro-cracking conductive layer
《Collagen and Leather》2023年第4期76-87,共12页Jianzhong Ma Zhijie Cheng Sha Tan Tian Zheng Yan Zong 
supported by the National Natural Science Foundation of China(No.51903143);Special Foundation for Science and Technology Major Plan of Xianyang(No.2018k01-46).
Flexible strain sensors are capable to detect external force induced strain change owing to their unique ability to convert deformation into electrical signals.Generally,micro/nano patterning of conductive layer in st...
关键词：a-MWCNTs LDHS LEATHER Flexible strain sensor 
Experimental and numerical investigation on the dynamic shear failure mechanism of sandstone using short beam compression specimen被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2023年第8期1911-1923,共13页Zelin Yan Feng Dai Yi Liu 
The authors thank the financial support from the National Natural Science Foundation of China(Grant.Nos.52039007 and 52225904);the Youth Science and Technology Innovation Research Team Fund of Sichuan Province(Grant.No.2020JDTD0001).
In this study,a novel testing method is proposed to characterize the dynamic shear property and failure mechanism of rocks by introducing the short beam compression(SBC)specimen into the split Hopkinson pressure bar(S...
关键词：Dynamic shear property Short beam compression(SBC) Dynamic fracture energy Micro-cracking mechanism 
Performance Evaluation of MWCNTs Reinforced Cement Mortar Composites using Natural and Commercial Surfactants
《Journal of Wuhan University of Technology(Materials Science)》2022年第1期47-57,共11页Qareeb Ullah Rao Arsalan Khushnood Sajjad Ahmad Muhammad Usman Shad Muhammad Jean-Marc Tulliani 
An efficient and promising approach for effectively dispersing multi-walled carbon nanotubes(MWCNTs)in cementitious composites has been investigated.The naturally occurring organic extracts from species of indigenousl...
关键词：MWCNTS acacia nilotica gum keekar triton X-100 FRACTURE crack bridging cement mortar early age micro-cracking SUSTAINABILITY 
Influence of grain size on strength of polymineralic crystalline rock: New insights from DEM grain-based modeling被引量：9
《Journal of Rock Mechanics and Geotechnical Engineering》2021年第4期755-766,共12页Jun Peng Louis Ngai Yuen Wong Cee Ing Teh 
in part supported by the National Natural Science Foundation of China(Grant Nos.41877217 and 51609178);the General Research Fund of the Research Grants Council(Hong Kong,China)(Grant No.17303917);the Singapore Academic Research Fund Tier 1 Grant(RG112/14).
Grain size effect on rock strength is a topic of great interest in geotechnical engineering.A consensus obtained from earlier laboratory tests is that rock strength generally decreases with the increase of grain size ...
关键词：Grain size Rock strength Grain-based modeling(GBM)approach Grain boundary Micro-cracking behavior 
Displacive transformation as pathway to prevent micro-cracks induced by thermal stress in additively manufactured strong and ductile high-entropy alloys被引量：10
《Transactions of Nonferrous Metals Society of China》2021年第4期1059-1073,共15页Rui-di LI Peng-da NIU Tie-chui YUAN Zhi-ming LI 
financial support of the National Natural Science Foundation of China (51505166,51971248);the Huxiang Young Talents Project (2018RS3007,2019RS1001);the Innovation-Driven Project of Central South University,China (2020CX023);Science and Technology Project of Hunan Province (2020GK2031)。
The micro-cracking behaviors of two high-entropy alloys(HEAs) of the FeMnCoCrNi family prepared by selective laser melting were systematically studied. Residual stresses were also analyzed by X-ray diffraction techniq...
关键词：selective laser melting high-entropy alloys phase transformation MICRO-CRACKING residual stress 
CRACK HEALING UTILISING BACTERIAL SPORES IN CONCRETE
《Journal of Green Building》2017年第3期103-114,共12页Alan Richardson Leon Amess Simon Neville Christopher Walton 
This self repair system is based upon harmless ground borne bacteria as the self-healing agent.The bacteria are activated after the concrete is cracked and the bacterial spores are exposed to moisture and air.The bact...
关键词：SELF-HEALING bio-based mortar MICRO-CRACKING light weight aggregates liquid-tightness 
Transition from Multiple Macro-Cracking to Multiple Micro-Cracking in Cementitious Composites被引量：4
《Tsinghua Science and Technology》2008年第5期669-673,共5页张君 冷冰 
the National Natural Science Foundation of China (No. 50178043)
This paper presents an experimental study of the possibility of transition from multiple macro-cracking to multiple micro-cracking in cementitious composites. Conventional polyvinyl alcohol fiber reinforced cementitio...
关键词：fiber reinforced cementitious composites crack width polyvinyl alcohol fibers 
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