Results 11 to 20 of about 580,035 (347)

Rockburst Prediction From the Perspective of Energy Release: A Case Study of a Diversion Tunnel at Jinping II Hydropower Station

open access: yesFrontiers in Earth Science, 2021
As a man-made engineering hazard, it is widely accepted that the rockbursts are the result of energy release. Previous studies have examined the unloading of in-situ stress resulting from deep tunnel excavation as a quasi-static process but the transient
Yong Fan   +8 more
doaj   +1 more source

Experimental and Numerical Investigation of Energy Evolution Characteristic of Granite considering the Loading Rate Effect

open access: yesAdvances in Materials Science and Engineering, 2022
In order to investigate the loading rate effect of energy evolution in granite, the indoor physical simulation test of single face fast unloading-three directions and five faces stress-vertical continuous loading under different loading rates was ...
Feiyue Sun   +3 more
doaj   +1 more source

Coal bursting tendency evaluation by needle penetration test

open access: yesMeitan xuebao, 2023
The bursting tendency is the inherent mechanical property of coal, and the important basis for evaluating the degree of coal bursting risk in underground coal mine.
Yixin ZHAO, Ronghuan XIE, Yirui GAO
doaj   +1 more source

Dynamic Behavior and Energy Evolution Characteristic of Deep Roadway Sandstone Containing Weakly Filled Joint at Various Angles

open access: yesAdvances in Civil Engineering, 2020
Dynamic impact tests were carried out by implying split-Hopkinson pressure bar (SHPB) apparatus under three-dimensional stress state to investigate the influences of weakly filled joint at seven kinds of angles on dynamic behavior and energy evolution ...
Qinyong Ma, Qingqing Su, Pu Yuan
doaj   +1 more source

Longitudinal fracture analysis of inhomogeneous beams with continuously varying sizes of the cross-section along the beam length

open access: yesFracture and Structural Integrity, 2020
Analyses of longitudinal fracture behavior of inhomogeneous beams which have continuously varying sizes of the cross-section along the beam length are carried-out. Beams of a rectangular cross-section are studied.
Victor Rizov, Holm Altenbach
doaj   +1 more source

Stability Index of Surrounding Rock during Deep Rock Excavation Considering Energy Release Speed

open access: yesApplied Sciences, 2023
Rockburst is a kind of dynamic rock failure process that is easily induced by the excavation of a high-stress rock mass. However, from an energy perspective, the existing indexes for rockburst tendency have a limitation in that they do not consider the ...
Sheng Luo   +6 more
doaj   +1 more source

Delamination Analysis of Multilayered Functionally Graded ‎Beams which Exhibit Non-linear Creep Behavior [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2023
General solution of the time-dependent strain energy release rate for delamination cracks in multilayered functionally graded load-bearing beam structures which exhibit non-linear creep is derived.
Victor Rizov
doaj   +1 more source

Energy release rate for cracks in finite‐strain elasticity

open access: yesMathematical Methods in the Applied Sciences, 2007
AbstractGriffith's fracture criterion describes in a quasistatic setting whether or not a pre‐existing crack in an elastic body is stationary for given external forces. In terms of the energy release rate (ERR), which is the derivative of the deformation energy of the body with respect to a virtual crack extension, this criterion reads: if the ERR is ...
Knees, Dorothee, Mielke, Alexander
openaire   +2 more sources

Steel plate cold commercial - carbon fiber reinforced plastics hybrid laminates for automotive applications: curing perspective with thermal residual effect

open access: yesJournal of Materials Research and Technology, 2021
The curing effect on hybrid materials consisting of steel plate cold commercial - carbon fiber reinforced plastics (SPCC-CFRP) hybrid laminates that have potential applications in automobile structures were evaluated in the present study.
Muhammad Akhsin Muflikhun   +1 more
doaj   +1 more source

Moving interfacial Griffith crack between bonded dissimilar media

open access: yesJournal of Applied Mathematics, 2005
The plane strain problem of determining strain energy release rate, crack energy, and crack-opening displacement (COD) for a moving Griffith crack at the interface of two dissimilar orthotropic half-planes is considered.
S. Mukherjee, S. Das
doaj   +1 more source

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