Results 11 to 20 of about 104,541 (265)

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

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

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

High Purity Smelting Technology for Ultra-high Strength Steels

open access: yesJournal of Aeronautical Materials, 2017
Ultra-high strength steel with high tensile strength, good toughness, high specific strength, modulus and other characteristics are widely used in aviation, aerospace and national defense and other fields.
JIANG Zhouhua   +4 more
doaj   +1 more source

Progress on effects of alloying elements on bainite formation and strength and toughness of high strength steel weld metal

open access: yesMaterials Research Express, 2021
High-strength steel has excellent mechanical properties and develops rapidly, but the toughness of weld metal cannot be well solved, which hinders the large-scale application of high-strength steel to a certain extent.
Tianli Zhang   +5 more
doaj   +1 more source

Development Status for High-Strength Steel and Ultra-High Strength Steels at Fushun Special Steel

open access: yesTeshugang, 2021
Based on the development and current situation of domestic special steel smelting technology of high strength steel, the special smelting technology of the high strength steel, ultra-high strength steel and ultra-high strength stainless steel produced at
王飞, 李建新, 张玉春
doaj  

Effects of Reinforcing Fiber Strength on Mechanical Properties of High-Strength Concrete

open access: yesFibers, 2019
This paper investigates the effects of the tensile strength of steel fiber on the mechanical properties of steel fiber-reinforced high-strength concrete.
Hyun-Do Yun   +2 more
doaj   +1 more source

Thermodynamic calculation-assisted design of 500 MPa high performance steel by machine learning

open access: yesJournal of Materials Research and Technology
In order to rationally design Q500 low-alloy wind power steel with stable microstructure and properties within a large cooling rate range, this study proposed a design system that utilizes thermodynamic database, machine learning (ML), and the multi ...
Weiyi Gong   +3 more
doaj   +1 more source

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