Effect of Aluminized Modified PS - PVD 7YSZ Thermal Barrier Coating on the Mechanical Properties of DZ125 Alloy [PDF]
Plasma spraying-physical vapor deposition(PS-PVD) process was applied to prepare aluminized modified thermal barrier coatings(TBCs) on the DZ125 superalloy substrate.
LUO Na, HE Bing, ZHANG Xiao-feng
doaj +1 more source
Crack nucleation in circular disk under mixed boundary conditions
A model of crack nucleation in a circular disk, based on consideration of cracking process zone is suggested. It is assumed that the cracking process zone is a finitelength layer containing a material with partially disturbed bonds between separate ...
V.M. Mirsalimov, N.M. Kalantarly
doaj +1 more source
Crackling noise in three-point bending of heterogeneous materials [PDF]
We study the crackling noise emerging during single crack propagation in a specimen under three-point bending conditions. Computer simulations are carried out in the framework of a discrete element model where the specimen is discretized in terms of ...
Ferenc Kun +4 more
core +2 more sources
Dynamic nucleation as a cascade-up of earthquakes depending on rupture propagation velocity
Earthquake dynamic rupture requires a nucleation process to provide sufficient energy to overcome the fracture energy. Large earthquakes may occur via a cascading rupture process, which includes many triggering processes that cascade from small to large ...
Kansuke Uemura, Satoshi Ide, Hideo Aochi
doaj +1 more source
Experimental investigation for effect of size on sandstone Mode I fracture
To study the effect of specimen size on fracture parameters in Mode I fracture issue, a group of geometrically similar sandstone specimens were tested by three-point bending.
PENG Jian-wen +2 more
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The influence of loading rate (crosshead speed) on the fracture process of bluntly notched samples of pearlitic steel under hydrogen environment is analyzed in this paper.
Jesús Toribio +2 more
doaj +1 more source
Statistical extraction of process zones and representative subspaces in fracture of random composite [PDF]
We propose to identify process zones in heterogeneous materials by tailored statistical tools. The process zone is redefined as the part of the structure where the random process cannot be correctly approximated in a low-dimensional deterministic space ...
Bordas, Stephane Pierre-Alain +3 more
core +3 more sources
Modeling water penetration at dam-foundation joint [PDF]
When fracture occurs in a concrete dam, the crack mouth is typically exposed to water. Very often this phenomenon occurs at the dam-foundation joint and is driven also by the fluid pressure inside the crack.
Bolzon +10 more
core +2 more sources
Nonlocal Criteria for Brittle and Quasi-Brittle Fracture of Geomaterials and Rocks
Nonlocal criteria are used for prediction materials and rock mass failure near stress concentrations (pores, faults, openings, excavations). A common property of nonlocal fracture criteria is the introduction of the intrinsic material length ...
Suknev Sergey
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Failure mechanisms and surface roughness statistics of fractured Fontainebleau sandstone [PDF]
In an effort to investigate the link between failure mechanisms and the geometry of fractures of compacted grains materials, a detailed statistical analysis of the surfaces of fractured Fontainebleau sandstones has been achieved. The roughness of samples
B. K. Chakrabarti +11 more
core +3 more sources

