funded by the National Natural Science Foundation of China(No.42477174,42002268);the Science and Technology Program of the Tibet Autonomous Region(Nos.XZ202301YD0034C,XZ202202YD0007C,XZ202402 ZD0001);the Open Fund of Anhui Intelligent Underground Detection Technology Research Institute(No.AHZT2023KF03);the Qinghai Province Basic Research Program Project(No.2024-ZJ-904)。
Brittleness is of great significance for evaluating the mechanical properties of the slope rock in reservoir area and revealing the brittle failure mechanism of the rocks.Although a series of definitions of the brittl...
financially supported by the National Natural Science Foundation of China(No.52275310);the Open Project of State Key Laboratory of Explosion Science and Technology(No.QNKT22-15);the BIT Research and Innovation Promoting Project(No.2022YCX020)。
Benefiting from excellent mechanical properties and low density,cellular ceramic structures(CCSs)are competitive candidates as structural components.However,inherent brittleness from strong chemical bonds among atoms ...
sponsored by the “National Natural Science Foundation of China” (No. U22B6003), (No. 52104010), and (No. 52104046)。
Recently, a new promising type of marine shale gas reservoir, carbonate-rich shale, has been discovered.But the mechanical properties of this type of shale were still unrevealed and the corresponding reservoir stimula...
financially supported by the Sichuan Science and Technology Program (Grant No. 2023ZYD0158);the National Natural Science Foundation of China (Grant Nos. 42304147 and 42304076)。
The main objective is to optimize the development of shale gas-rich areas by predicting seismic sweet spot parameters in shale reservoirs. We systematically assessed the fracture development, fracture gas content, and...
supported by the National Key Research&De-velopment Program of China(No.2022YFF0609002);the National Natural Science Foundation of China(Nos.U1908219,52171163,and 52271157);the Key Research Program of the Chinese Academy of Sciences(No.ZDRW-CN-2021-2-2);the key Research&Devel-opment Plan of Jiangxi Province(No.20192ACB80001);the Natu-ral Science Foundation of Liaoning Province(No.2022-BS-001);the China Postdoctoral Science Foundation(No.2022M713210);the Shenyang National Laboratory for Materials Science.
Although refractory high-entropy alloys(RHEAs)possess excellent softening resistance and thermal sta-bility at high temperatures,their practical application is often limited due to room temperature(RT)brit-tleness.In ...
Project(11272119)supported by the National Natural Science Foundation of China。
This paper developed a statistical damage constitutive model for deep rock by considering the effects of external load and thermal treatment temperature based on the distortion energy.The model parameters were determi...
supported by the National Natural Science Foundation of China(Grant No.42077244).
The peak elastic strain energy consumption ratio(PEECR)is a rock brittleness index proposed by Gong and Wang.In the present study,based on the linear energy storage law of rock under triaxial compression,a new method ...
Supported by projects of the National Natural Science Foundation of China(Nos.52074088,52174022,51574088,51404073);Provincial Outstanding Youth Reserve Talent Project of Northeast Petroleum University(No.SJQH202002);2020 Northeast Petroleum University Western Oilfield Development Special Project(No.XBYTKT202001);Postdoctoral Research Start-Up in Heilongjiang Province(Nos.LBH-Q20074,LBH-Q21086).
In order to study fracture mechanism of rocks in different brittle mineral contents,this study pro-poses a method to identify the acoustic emission signal released by rock fracture under different brittle miner-al con...
The PetroChina Innovation Foundation(2019D-5007-0202).
Deep shale reservoirs(3500–4500 m)exhibit significantly different stress states than moderately deep shale reservoirs(2000–3500 m).As a result,the brittleness response mechanisms of deep shales are also different.It...
supported by the National Natural Science Foundation of China(Grant No.51972080);the science foundation of National Key Laboratory of Science and Technology on Advanced Composites in Special Environments.
To respond the recent experimental advances,the phase stability,mechanical properties,phonon as well as infrared-and Raman-active modes,thermal expansion and heat capacity were investigated by density functional theor...