Results 11 to 20 of about 210,651 (298)
Slow crack growth in polycarbonate films [PDF]
We study experimentally the slow growth of a single crack in polycarbonate films submitted to uniaxial and constant imposed stress. The specificity of fracture in polycarbonate films is the appearance of flame shaped macroscopic process zones at the tips
+8 more
core +5 more sources
Mechanical analysis of a shear-cracked RC beam
Shear crack analysis is essential for engineers to estimate repair work in concrete structures. So far, conventional theoretical and numerical analyses in fracture mechanics have been applied to study concrete flexural beams, but there is still little ...
Shahriar Shahbazpanahi
doaj +1 more source
Experimental Study on the Effect of Bedding on the Fracture Process Zone of Shale
The conventional fracture in shale hydraulic fracturing belongs to the type-I fracture, and the size of the fracture process zone (FPZ) is an important index to measure the fracability of rock mass.
Tiewu Tang +3 more
doaj +1 more source
Role of disorder in the size-scaling of material strength [PDF]
We study the sample size dependence of the strength of disordered materials with a flaw, by numerical simulations of lattice models for fracture. We find a crossover between a regime controlled by the fluctuations due to disorder and another controlled ...
E. J. Gumbel +7 more
core +3 more sources
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
Scaling exponents for fracture surfaces in homogenous glass and glassy ceramics [PDF]
We investigate the scaling properties of post-mortem fracture surfaces in silica glass and glassy ceramics. In both cases, the 2D height-height correlation function is found to obey Family-Viseck scaling properties, but with two sets of critical ...
A.-L. Barabasi +14 more
core +4 more sources
Modelling of the Influence of Tensile Test Speed on the Fracture Load
This investigation focuses on modelling the fracture zone of four materials at different test speeds. The influence of these test speeds on the fracture zone formula was investigated as well.
Gouda Mohamed Mahmoud, Khaled Mohamed
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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
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
Creep and Fracture in Concrete: A Fractional Order Rate Approach [PDF]
The paper analyses the interaction between strain-softening and time-dependent behaviour in the case of quasi-static fracture of concrete. A viscous element based on a fractional order rate law is coupled with a micromecanical model for the fracture ...
Barenblatt +17 more
core +1 more source

