Results 101 to 110 of about 193,692 (314)

Task 4: Testing Iowa Portland Cement Concrete Mixtures for the AASHTO Mechanistic-Empirical Pavement Design Procedure, May 2008 [PDF]

open access: yes, 2008
The present research project was designed to identify the typical Iowa material input values that are required by the Mechanistic-Empirical Pavement Design Guide (MEPDG) for the Level 3 concrete pavement design.

core  

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du   +4 more
wiley   +1 more source

The developments of compressive strength of concrete in high temperature ambience [PDF]

open access: yes, 1991
P(論文)There are some special problems involved in concreting in hot weather, where they would arise from a higher temperature of the concrete, and, in many cases, from an increased rate of evaporation from the fresh mix.
地濃, 茂雄, 42120
core   +1 more source

Assessment of mortar evolution in pig slurry by mechanical and ultrasonic measurements [PDF]

open access: yes, 2010
This work presents the results obtained in a long-term experiment focused on the study of the evolution of cementitious materials immersed in pig slurry at real conditions.
Segura Pérez, Ignacio   +3 more
core   +2 more sources

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat   +5 more
wiley   +1 more source

Estimativa da resistência do concreto à compressão por meio da velocidade de propagação dos pulsos ultrassônicos na pasta do concreto [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia CivilEsse trabalho propõe um procedimento alternativo para a estimativa da resistência à compressão do concreto através do método da ...
Irrigaray, Mário Arlindo Paz
core  

Thermo-mechanical performance of concrete with alternative binder material. [PDF]

open access: yes, 2013
Purpose – This paper investigates the effect of changes to fundamental components of concrete; cement type, water/cement ratio, aggregate size & age, on thermo-mechanical properties of hardened concrete.
Richardson, Alan   +2 more
core   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

Compressive Strength of Concrete with Ground Granulated Blast Furnace Slag [PDF]

open access: yes
Ground Granulated Blast Furnace Slag (GGBFs) is a by-product of the manufacturing of iron in a blast furnace where iron ore, limestone and coke are heated up to 1500ºC.
Kara, Patricija   +2 more
core  

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