CRACK

作品数：991被引量：1789H指数：15
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相关领域：理学更多>>
相关作者：周丽君王媛范天佑潘登丁洪志更多>>
相关机构：北京理工大学河海大学南京航空航天大学哈尔滨工业大学更多>>
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相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家教育部博士点基金更多>>
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Numerical simulation of the deformation risk in thin slab continuous casting process with liquid core reduction
《International Journal of Minerals,Metallurgy and Materials》2025年第5期1114-1127,共14页Zhida Zhang Jize Chen Cheng Ji Yutang Ma Miaoyong Zhu Wenxue Wang 
supported by the National Natural Science Foundation of China(No.52474355);the Liaoning Province Science and Technology Plan Joint Program(Key Research and Development Program Project),China(Nos.2022JH25/10200003 and 2023JH2/101800058).
The application of liquid core reduction(LCR)technology in thin slab continuous casting can refine the internal microstruc-tures of slabs and improve their production efficiency.To avoid crack risks caused by large de...
关键词：thin slab continuous casting liquid core reduction three-dimensional thermal-mechanical critical strain crack risk maxim-um theoretical reduction amount 
Impact of injection pressure and polyaxial stress on hydraulic fracture propagation and permeability evolution in graywacke:Insights from discrete element models of a laboratory test
《Journal of Rock Mechanics and Geotechnical Engineering》2025年第4期2344-2359,共16页Haimeng Shen Jeoung Seok Yoon Arno Zang Hannes Hofmann Xiaying Li Qi Li 
supported by the Knowledge Innovation Program of Wuhan-Basic Research (Grant No.2022010801010159);support from the Helmholtz Association's Initiative and Networking Fund for the Helmholtz Young Investigator Group ARES (Contract number VH-NG-1516);supported by the Swedish Radiation Safety Authority (Project SSM2020-2758).
Understanding the hydromechanical behavior and permeability stress sensitivity of hydraulic fractures is fundamental for geotechnical applications associated with fluid injection.This paper presents a three-dimensiona...
关键词：Hydraulic fracture Discrete element model(DEM) Polyaxial stress Permeability evolution Crack front Fluid pressure front 
An improved fluid flow algorithm for hydraulic fracturing:Optimizing domain volume and crack pressure update strategies
《International Journal of Mining Science and Technology》2025年第4期639-657,共19页Wei Zhang Jing Bi Yu Zhao Yongfa Zhang Chaolin Wang Yang Pan 
supported by the National Natural Science Foundation of China(Nos.52164001,52064006,52004072 and 52364004);the Science and Technology Support Project of Guizhou(Nos.[2020]4Y044),[2021]N404 and[2021]N511);the Guizhou Provincial Science and Technology Foundation(No.GCC[2022]005-1),Talents of Guizhou University(No.201901);the Special Research Funds of Guizhou University(Nos.201903,202011,and 202012).
With the widespread adoption of hydraulic fracturing technology in oil and gas resource development,improving the accuracy and efficiency of fracturing simulations has become a critical research focus.This paper propo...
关键词：Hydraulic fracturing Fluid flow algorithm Domain volume optimization Crack pressure update Borehole size 
Thermal fracture analysis of two collinear cracks in a functionally graded medium based on the three-phase-lag model
《Applied Mathematics and Mechanics(English Edition)》2025年第3期501-520,共20页Zhangna XUE Huameng WANG Jianlin LIU Minjie WEN Z.T.CHEN 
Project supported by the Natural Science Foundation of Shandong Province of China(No.ZR2024MA085);the Science and Technology Plan Project of Zhejiang Province of China(No.2023C03143);the Fundamental Research Funds for the Central Universities of China。
The three-phase-lag(TPL)heat conduction model is an accurate representation of the actual heat transfer process.It would be interesting to investigate how the TPL model affects the thermal fracture behavior when there...
关键词：three-phase-lag(TPL) collinear crack functionally graded material(FGM) stress intensity factor(SIF) 
Crack sensitivity of high-manganese cryogenic steels in initial solidification during continuous casting
《Journal of Iron and Steel Research International》2025年第3期682-694,共13页Yang Li Johann Winkler Peter Presoly Christian Bernhard Xu-feng Qin Chang-gui Cheng 
supported by National Natural Science Foundation of China(Grant Nos.52174324,51974213 and 52204351);the China Postdoctoral Science Foundation(2022M722487);Open fund project(Grant No.FMRUlab23-05)supported by Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education;support under the scope of the COMET program within the K2 Center“Integrated Computational Material,Process and Product Engineering(IC-MPPE)”(Project No.886385).
Cryogenic steels,i.e.,steels with maximum toughness at particularly low temperature,are increasingly becoming the focus of research.Cryogenic steels are usually alloyed with 5%–9%nickel.Ni can also be substituted by ...
关键词：High-manganese cryogenic steel Submerged split chill tensile test Crack sensitivity Initial solidification Hot crack 
Crack and failure behaviors of sandstone subjected to dynamic loads visualized by micro-computed tomography
《Journal of Rock Mechanics and Geotechnical Engineering》2025年第3期1459-1473,共15页Xingyu Zhang Pengfei Guo Xiangbo Gao Chunjiang Zou Kaiyu Wang Jinzhu Hu Yan Sun Liang Lei 
supported by Research Center for Industries of the Future(RCIF);Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province(No.ZJRMG-2022-03);Key Research and Development Program of Guangxi Province(No.Guike AB22080035);which are gratefully acknowledged.In addition,we are grateful for the valuable and constructive feedback provided by the anonymous reviewers,which has greatly improved this manuscript.
Microscopic dynamic failure behaviors of rocks are significant to rock engineering,which is still insufficiently understood.This study combines split Hopkinson pressure bar(SHPB)and micro-CT(computed tomography)to exp...
关键词：Dynamic rock failure 3D observation Microscopic failure mechanism 
A model LayerDFN for characterizing the inherent anisotropic rocks with large-scale and dense joints
《Journal of Rock Mechanics and Geotechnical Engineering》2025年第3期1569-1584,共16页Gang Han Shuling Huang Chuanqing Zhang Xiuli Ding Yuting Zhang Yang Gao Jun He 
supported by financial support from the National Natural Science Foundation of China(Grant Nos.52309122 and U2340229);the Innovation Team of Changjiang River Scientific Research Institute(Grant No.CKSF2024329/YT).
Large-scale and heavily jointed rocks have inherent planes of anisotropy and secondary structural planes,such as dominant joint sets and random fractures,which result in significant differences in their failure mechan...
关键词：Inherent anisotropic rocks Secondary structural planes Constitutive model Crack tensor Damage tensor 
CNN-based multi-output regression model to estimate infrastructural surface crack dimensions adopting a generalised patch size and FWHM-based width quantification
《Digital Twins and Applications》2025年第1期75-102,共28页Sudipta Debroy Arjun Sil 
To cater the need for real-time crack monitoring of infrastructural facilities,a CNN-regression model is proposed to directly estimate the crack properties from patches.RGB crack images and their corresponding masks o...
关键词：ablation CNN convolution neural network CRACK crack patch estimation FWHM length multi-output regression segmentation uncertainty WIDTH 
Flexible Strain Sensors with Ultra‑High Sensitivity and Wide Range Enabled by Crack‑Modulated Electrical Pathways
《Nano-Micro Letters》2025年第3期246-264,共19页Yunzhao Bai Yunlei Zhou Xuanyu Wu Mengfei Yin Liting Yin Shiyuan Qu Fan Zhang Kan Li YongAn Huang 
support from the National Key R&D Program of China(2021YFB3200700);the National Natural Science Foundation of China(Grant No.0214100221,51925503).
This study presents a breakthrough in flexible strain sensor technology with the development of an ultrahigh sensitivity and wide-range sensor,addressing the critical challenge of reconciling sensitivity with measurem...
关键词：Flexible strain sensor FABRIC CRACK Response regulation Epidermal device 
Effect of solidification path and volume shrinkage on cracking susceptibility at different cooling rates
《Journal of Iron and Steel Research International》2025年第2期418-425,共8页Wei-an Wang Yong-kun Yang Guo-xing Qiu Jian-li Wang Guo-hua Wang Xiao-ming Li 
supported by the National Natural Science Foundation of China(No.52074207 and No.52304358);the Natural Science Basic Research Program of Shaanxi(No.2023-JC-QN-0376);Shaanxi Province Innovation Ability Support Plan(No.2023-CX-TD-53).
Understanding the solidification characteristics and microsegregation under varying cooling rates is essential to comprehend the formation of center cracks in large section round billets.P91 high-alloy steel was taken...
关键词：In situ observation P91 high-alloy steel Central crack Large section continuous casting round billet Surface roughness Peritectic solidification 
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