Results 81 to 90 of about 453,822 (206)

Particle flow simulation experiments on the influence of non-penetrating random fractures on the deformation and failure characteristics of sandstone

open access: yesResults in Engineering
Fractures in rock masses are significant factors that weaken the strength of rock masses and alter their failure modes, posing threats to the safety of various geotechnical engineering projects.
Wangxuan Zhu   +4 more
doaj   +1 more source

Analyzing the Connectivity of Fracture Networks Using Natural Fracture Characteristics in the Khairi Murat Range, Potwar Region, Northern Pakistan

open access: yesGeosciences
Rock fracture connectivity is a developing concept that demonstrates the effectiveness of fracture networks in facilitating the preferential flow of fluid through the medium.
Nasrullah Dasti, Mian Sohail Akram
doaj   +1 more source

Investigation of Self-Compacting Concrete by Using Fracture Mechanics Methods [PDF]

open access: yes, 2013
Over a century, concrete has been used as a construction material all over the world, andits application areas increases and becomes commonplace each day. SCC is a special concretetype which places itself in densely-equipped narrow and deep sections with
Kursat Esat Alyamac, Ragip Ince
core  

Phenomenological–based strategy for the Gurson-Tvergaard-Needleman model parameters identification

open access: yesApplications in Engineering Science
The Gurson–Tvergaard–Needleman GTN model is widely used for ductile fracture simulations. However, the selection of its parameters is often done randomly to reproduce the experimental data without considering the physical consistency of the set of ...
R. Bensaada   +5 more
doaj   +1 more source

The inversion of the single-stage hydraulic fracture parameters for shale gas well based on the shut-in pressure-drop data: a case of shale gas well in Changning N209 well area

open access: yesShenzhen Daxue xuebao. Ligong ban
Multi-stage fracturing in horizontal wells is a key technology for the effective development of shale gas reservoirs. Accurate evaluation of hydraulic fracture network parameters is an important prerequisite for activities such as the evaluation of ...
ZHAO Yulong   +5 more
doaj   +1 more source

A relation between semiempirical fracture analyses and R-curves [PDF]

open access: yes
The relations between several semiempirical fracture analyses (SEFA) and the R-curve concept of fracture mechanics are examined and the conditions for equivalence between a SEFA and an R-curve are derived. A hypothetical material is employed to study the
Orange, T. W.
core   +1 more source

Study on fracture mechanical properties and mechanism of engineered cementitious composites (ECC) after high temperature

open access: yesCase Studies in Construction Materials
The low melting point characteristics of organic fibers restrict the utilization of ECC in engineering applications. In this paper, the fracture mechanical properties of ECC were studied considering temperature and polyethylene fiber content, and the ...
Liangqin Wu   +6 more
doaj   +1 more source

A proposed approach to the application of nonlinear irreversible thermodynamics to fracture in composite materials [PDF]

open access: yes
The fracture criteria upon which most fracture mechanics is based involves an energy balance that is not appropriate for the fracture mechanics of viscoelastic materials such as polymer matrix composites.
Lindenmeyer, P. H.
core   +1 more source

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