Results 41 to 50 of about 453,822 (206)

Sustainable future of construction: the potential of concrete with basalt mini-bars as reinforcement

open access: yesEconomics and Environment
The paper concerns the influence of basalt minibars on the subcritical and critical behaviour of test specimens made of concrete with low-emission cement.
Julita Krassowska   +3 more
doaj   +1 more source

Analysis of the critical stress intensity factor of concrete with gravel and dolomite aggregates tested by different methods [PDF]

open access: yesArchives of Civil Engineering
The cracking resistance of concrete is of paramount importance in the context of structural integrity and stability. Therefore, analysing fracture propagation in concrete is essential to evaluate resistance to crack propagation.
Amanda Akram   +3 more
doaj   +1 more source

Effect of air-cooled blast furnace slag aggregate on mechanical properties of ultra-high-performance concrete

open access: yesCase Studies in Construction Materials, 2022
This research is mainly focusing on making UHPFRC lightweight, cost-effective, and environment friendly with the application of waste material. Air-cooled blast furnace slag aggregate (ACBFSA) was chosen as coarse aggregate with 30%, 50%, and 100 ...
Qi Cao   +4 more
doaj   +1 more source

Analysis of damage and fracture formulations in cold extrusion [PDF]

open access: yes, 2017
In forming processes, components generally undergo large deformations. This induces the evolution of damage, which can influence material and product properties.
Clausmeyer, Till   +2 more
core  

A thermodynamically consistent derivation of a frictional-damage cohesive-zone model with different mode i and mode II fracture energies [PDF]

open access: yes, 2015
The present paper deals with the derivation of an interface model characterized by macroscopic fracture energies which are different in modes I and II, the macroscopic fracture energy being the total energy dissipated per unit of fracture area.
Alfano, G, Sacco, E, Serpieri, R
core   +1 more source

Components of the Fracture Response of Alkali-Activated Slag Composites with Steel Microfibers

open access: yesApplied Sciences, 2019
Knowledge of the mechanical and primarily fracture parameters of composites with a brittle matrix is essential for the quantification of their resistance to crack initiation and growth, and also for the specification of material model parameters employed
Hana Šimonová   +4 more
doaj   +1 more source

Influence of geometry, elasticity properties and boundary conditions on the Mode I purity in sandwich composites [PDF]

open access: yes, 2020
The present work addresses the problem of skin/core debonding in sandwich materials. The main goal is to carry out parametric analyses for studying the influence of various materials, geometrical parameters and boundary conditions of sandwich fracture ...
Burlayenko, V. N.   +2 more
core  

Influence of stress sensitive differences on natural well productivity in fractured reservoirs

open access: yesYouqicang pingjia yu kaifa, 2019
In order to study the productivity characteristics of low permeability reservoirs with natural fractures, we established a prediction model of natural fractured reservoir productivity considering stress sensitivity differences between matrix and natural ...
Cao Jun   +3 more
doaj  

3d numerical model of a confined fracture tests in concrete [PDF]

open access: yes, 2013
The paper deals with the numerical simulation of a confined fracture test in concrete. The test is part of the experimental work carried out at ETSECCPB-UPC in order to elucidate the existence of a second mode of fracture under shear and high compression,
Carol, Ignacio   +3 more
core  

Fracture parameter diagnostic method during staged multi-cluster fracturing based on distributed temperature sensing

open access: yesPetroleum Exploration and Development
The Carter model is used to characterize the dynamic behaviors of fracture growth and fracturing fluid leakoff. A thermo-fluid coupling temperature response forward model is built considering the fluid flow and heat transfer in wellbore, fracture and ...
Cao WEI   +6 more
doaj   +1 more source

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