The analysis of aluminum alloy structure beams under static load

Test and study of aluminum alloy helicopter deck under static load were carried out. The deck is made of aluminum alloy sandwich panel. In the experiment, the deflection and stress of deck are measured under different static load conditions. Load conditions are determined by the conditions that helicopter berths at the deck. When helicopter berths at the deck, the deck endures vertical compressive loads on the deck surface and diagonal tension loads on the tie-down rod which is used to fasten the helicopter. According to the test results under different load conditions, the characteristic behavior and ultimate load carrying capacity were analyzed. Based on experimental results, FEM simulation was made. The results of FEM analysis was agreed with the test results very well. It is shown that the helicopter deck which is composed of aluminum alloy sandwich panel has good mechanical performance.

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Fatigue Life Prediction of Served Aircraft Aluminum Alloy Structure

2009 International Conference on Education Technology and Computer ◽

10.1109/icetc.2009.31 ◽

2009 ◽

Author(s):

Youhong Zhang ◽

Shengli Zhou ◽

Jupeng Liu ◽

Enyi Chu ◽

Rui Zhang

Keyword(s):

Aluminum Alloy ◽

Fatigue Life ◽

Life Prediction ◽

Fatigue Life Prediction ◽

Alloy Structure

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Synthesis and Performance of Nanocrystalline 5083 Aluminum Alloy Powders by Cryomilling

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.66.187 ◽

2009 ◽

Vol 66 ◽

pp. 187-190

Author(s):

Xiu Hua Ma ◽

Wei Min Wang ◽

Hao Wang ◽

Yu Cheng Wang ◽

Zheng Yi Fu

Keyword(s):

Aluminum Alloy ◽

High Speed ◽

Milling Time ◽

Alloy Structure ◽

Cryogenic Milling ◽

Average Grain Size ◽

Main Factors ◽

And Performance ◽

5083 Aluminum Alloy ◽

Thermal Stability Of

In this text, 5083 aluminum alloy was prepared with the method of the liquid nitrogen cryogenic milling (cryomilling). The microstructure,microstructural evolution and thermal stability of sample powder was investigated by XRD,SEM and DSC. The experimental results show that the particles size of 5083 aluminum alloy power during cryomilling was gradually reduced; milling time and milling speed are the main factors of affected alloy structure and performance, and high speed cryomilling could result in more uniform nanometer grains. The microstructure of the cryomilling 5083 aluminum alloy for 5 hours is micron-sized agglomerates with an average grain size of 45 nm.

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Structure and mechanical properties of A356-C alloys

MATEC Web of Conferences ◽

10.1051/matecconf/201824300024 ◽

2018 ◽

Vol 243 ◽

pp. 00024

Author(s):

Marina Khmeleva ◽

Anton Khrustalev ◽

Alexander Vorozhtsov

Keyword(s):

Mechanical Properties ◽

Aluminum Alloy ◽

Mechanical Characteristics ◽

Casting Alloy ◽

A356 Aluminum Alloy ◽

Mechanical Mixing ◽

Alloy Structure ◽

Melt Treatment ◽

Mechanical Tensile ◽

A356 Aluminum

The paper deals with influence of mechanical mixing and vibration treatment on the structure and mechanical characteristics of the aluminum alloy containing ≤ 1 wt.% of nanodiamonds (A356-C). The alloy was obtained from industrial A356 Al-Si casting alloy by means of an integrated effect of mechanical mixing and vibration. It has been shown that the introduction of nanodiamond particles contributes to improving the alloy structure and increasing its mechanical tensile properties. The structure of the A356 aluminum alloy has been refined with introduction of 0.2 wt% nanodiamonds and application of vibration melt treatment. The introduction of nanodiamonds into the melt and the vibration melt treatment enable one to increase the yield strength and tensile strength of the A356 aluminum alloy without any change in ductility.

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Sustainment Engineering and Residual Life Prediction of Aluminum Alloy Structure at Service Environment

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.661.124 ◽

2013 ◽

Vol 661 ◽

pp. 124-127

Author(s):

Qian Zhang ◽

Gang Liu ◽

Cun Li Wu

Keyword(s):

Aluminum Alloy ◽

Life Prediction ◽

Structural Integrity ◽

Residual Life ◽

Fatigue Cracks ◽

Corrosion Damage ◽

Life Extension ◽

Alloy Structure ◽

Service Environment ◽

Residual Life Prediction

The effects of service environment will cause corrosion damage and fatigue cracks to initiate and grow, compromising structural integrity of the aircraft aluminum alloy structure. To develop an effective inspection and maintenance-scheduling program that takes advantage of life extension technologies, the sustainment engineering and residual life prediction method of aging aircraft aluminum alloy structure at service environment was proposed in this article. The whole algorithm of the sustainment engineering was described and the included situations of repairs, corrosion damage and widespread fatigue damage on aircraft structures were presented. At last, combining the results of FEM calculation with the AFGROW software of crack growth analyses, the residual life of corroded aluminum alloy structure was estimated.

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Nanostructuring of 2xxx Aluminum Alloy under Cryorolling to High Strains

Materials Science Forum ◽

10.4028/www.scientific.net/msf.838-839.367 ◽

2016 ◽

Vol 838-839 ◽

pp. 367-372 ◽

Cited By ~ 3

Author(s):

Elena Avtokratova ◽

Stanislav Krymskiy ◽

Anastasia Mikhaylovskaya ◽

Oleg Sitdikov ◽

Michael Markushev

Keyword(s):

Aluminum Alloy ◽

Liquid Nitrogen ◽

Dynamic Recovery ◽

Volume Fraction ◽

Effective Strain ◽

Grain Structure ◽

Alloy Structure ◽

2024 Aluminum Alloy ◽

Continuous Recrystallization ◽

Nanometric Size

The structure transformations in the D16 (2024) aluminum alloy caused by isothermal rolling with effective strain up to e ~3.5 at a temperature of liquid nitrogen were investigated. It is shown that under straining to e ~2.0 the dislocation structure containing cells of the nanometric size is formed. At higher strains the dynamic recovery and continuous recrystallization result in the development of a mixed nano(sub) grain structure, which after e ~3.5 is characterized by the size and volume fraction of grains ~ 150 nm and 40-45%, respectively. Nature of the alloy structure transformations is discussed.

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