Results 121 to 130 of about 27,138 (307)

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

Propriedades mecânicas nas primeiras idades como preditoras das tensões induzidas e fissuração de concreto projetado reforçado com fibras [PDF]

open access: yes, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2014.Como o concreto projetado é normalmente carregado durante as primeiras horas da hidratação, sem nenhum ...
Pillar, Nora Maria de Patta
core  

Experimental study on creep behavior of high-strength concrete filled steel tubular (HSCFST) columns

open access: yesCase Studies in Construction Materials
The use of High Strength Concrete Filled Steel Tube (HSCFST) members has become widespread, but there is limited research on their creep behavior. This study examines the creep and shrinkage characteristics of HSCFST columns subjected to axial loading by
Yonghui Huang   +4 more
doaj   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello   +7 more
wiley   +1 more source

Superplasticity in Zn-based alloys [PDF]

open access: yes, 1972
This thesis is concerned with two-basic zinc-based superplastic . alloys, the virtually. single-phase Zn --0.4 wt % Al alloy and the two-phase Zn - Al eutectoid alloy.
Naziri, Hurmuze
core  

Study on creep characteristics of fractured rock masses in caved zones with different roof strengths

open access: yesDizhi lixue xuebao
Objective  The caved zone in goaf areas is filled with fractured rock masses, and the strength of these fractured rock masses after collapse serves as a key factor causing differential long-term creep characteristics of the goaf.
CAI Guanjun   +3 more
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

High strength steels - stress relaxation and derived creep characteristics at room temperature.

open access: yes, 1976
The room temperature tensile strength and stress relaxation characteristics of 301 stainless, 431 stainless and Vascomax 300 maraging steels in the form of thin strip have been determined.
Barton, SG, Pollock, JTA
core  

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi   +5 more
wiley   +1 more source

Creep properties at ambient temperature of some high strength steels.

open access: yes, 1979
Ambient temperature stress relaxation and creep data are reported at various stress levels for two grades of MAR300 steel, a MAR350 steel and a type 301 stainless steel. Analysis has shown that there is a linear relationship between the logarithm of time
Barton, SG, Pollock, JTA
core  

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