Results 11 to 20 of about 286,996 (314)

Gigacycle fatigue in high strength steels [PDF]

open access: yesScience and Technology of Advanced Materials, 2019
This paper reviews the research results to date on gigacycle fatigue caused by internal fractures in high strength steels. Firstly, accelerated fatigue testing was realized using ultrasonic fatigue testing at 20 kHz, which completes 109 cycles in one day, unlike the 3-4 months needed for conventional fatigue testing.
Yoshiyuki Furuya   +2 more
openaire   +3 more sources

Prediction of Shear Strength for Steel-Fiber High-Strength Concrete Corbels with the Softened Strut-and-Tie Model

open access: yesBuildings, 2023
On the basis of the test results of nine steel-fiber high-strength concrete corbel specimens subjected to a vertical load, the influence of the steel fiber content on the shear performance of corbels was analyzed.
Shu-Shan Li   +7 more
doaj   +1 more source

Effect of High-Strength Materials on Axial Capacity of CFT Columns [PDF]

open access: yesپژوهش‌های زیرساخت‌های عمرانی, 2021
The review of existing codes and standards revealed that the design provisions for CFT members with high strength materials are still limited. This paper addresses this gap and suggests simple design equations for high strength square CFT columns using a
Masoud Ahmadi, Mir Rahim Musavi
doaj   +1 more source

Effect of interlamellar spacing on the elastoplastic behavior of C70 pearlitic steel: Experimental results and self-consistent modeling [PDF]

open access: yes, 2014
The effect of pearlite microstructure characteristics on strength and deformation of C70 pearlitic steel was investigated. Tensile tests under X-ray diffraction coupled with self-consistent model have been used to identify the role of interlamellar ...
BACZMANSKI, Andrzej   +4 more
core   +1 more source

Experimental research on fire resistance of circular steel tube column filled with steel-reinforced high-strength concrete

open access: yes上海师范大学学报. 自然科学版, 2014
Circular steel tube filled with steel-reinforced high-strength concrete is a new model of composite column design.The fire resistance of this composite column was investigated experimentally.One circular steel tube column filled with steel-reinforced ...
ZHU Siyi   +4 more
doaj   +1 more source

Hydrogen Embrittlement of High Strength Steels

open access: yesDefect and Diffusion Forum, 2009
Hydrogen embrittlement is believed to be one of the main reasons for cracking of structures under stress. High strength steels in these structures often include a ferritic core made of alpha-iron (body centered cubic lattice). We compute the interaction of atomic hydrogen with iron using first principles. The interstitial hydrogen can be placed in two
Sánchez-Montero, Javier   +3 more
openaire   +2 more sources

Hydrogen transport and embrittlement in 300 M and AerMet100 ultra high strength steels [PDF]

open access: yes, 2010
This paper describes how hydrogen transport affects the severity of hydrogen embrittlement in 300 M and AerMet100 ultra high strength steels. Slow strain rate tests were carried out on specimens coated with electrodeposited cadmium and aluminium-based
Robinson, M. J.   +1 more
core   +1 more source

High Strain Rate Properties of High Strength Steel Sheets

open access: yesInternational Journal of Automotive Engineering, 2011
High strain rate properties of sheet steel largely depend on its strength level and strengthening mechanisms. The strain rate sensitivity of flow stress has a close relation with the hardness of a softer phase, which indicates superior strain rate ...
Akihiro Uenishi   +5 more
doaj   +1 more source

Bendability of Ultra-High-Strength Steel

open access: yesKey Engineering Materials, 2009
Utilisation of ultra-high-strength (UHS) steels is rapidly spreading from the automotive industry into many other application areas. It is necessary to know how these materials behave in common production processes such as air bending. The bendability of UHS steels is much lower compared to normal and high-strength construction steels.
Mäntyjärvi Kari   +2 more
openaire   +1 more source

The effect of quenching and defects size on the HCF behaviour of Boron steel [PDF]

open access: yes, 2014
This work investigates the effect of natural and artificial surface defects and quenching on the fatigue strength of a Boron steel (22MnB5). A vast experimental campaign has been undertaken to study the high cycle fatigue behaviour and more specifically ...
PESSARD, Etienne   +4 more
core   +1 more source

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