The influence of alloy composition on residual stresses in heat treated aluminium alloys

Robinson, J. S.; Redington, Wynette

doi:10.1016/j.matchar.2015.04.017

Cited by 45 publications

(25 citation statements)

References 15 publications

(15 reference statements)

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“…The test coupons were machined from blanks cut from 12mm thick plate, with the long axis of the coupon parallel to the rolling direction. Typically, rolled/extruded aerospace aluminium alloys (such as AA 7075) are expected to exhibit some anisotropy in the longitudinal/transverse direction, mainly due to the existence of residual stresses arising from heat treatments and plastic deformation imposed during machining [30]. This study was performed by using coupons from 5 the rolling direction since the particular structural area under fatigue evaluation (aircraft skin) is loaded along the rolled direction of the material (also consistent with past research performed by DST Group on notched and un-notched AA7075-T6 coupon [28,29]).…”

Section: Test Setup and Couponsmentioning

confidence: 99%

Sensitivity and optimisation of the Chaboche plasticity model parameters in strain-life fatigue predictions

et al. 2017

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The aerospace industry is widely employing strain-life methodologies for structural fatigue predictions. Under spectrum loading, overloads significantly affect the fatigue, therefore it is very important to accurately account for the cyclic transient deformation phenomena. Describing these phenomena requires advanced plasticity models that involve a set of material parameters. Even for the well-known Chaboche model, there is lack of understanding of each parameter's sensitivity

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Section: Test Setup and Couponsmentioning

confidence: 99%

Sensitivity and optimisation of the Chaboche plasticity model parameters in strain-life fatigue predictions

et al. 2017

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“…With the use of a recent cos-based analyzer, the time required for one stress measurement is shortened to 60 s. The cosmethod is a genuinely Japanese original product in the sense that both software (fundamental theory) and hardware (IP and equipment) were born in Japan. In recent years, the method has attracted engineers as a new method of X-ray stress measurement abroad (Ling and Lee, 2015, Robinson and Redington, 2015, Ramitec-Rico et al, 2016 as well as in Japan (Tanaka, 2017), and applications of the method have been spreading to various engineering fields.…”

Section: Introductionmentioning

confidence: 99%

The cos<i>α</i> method for X-ray residual stress measurement using two-dimensional detector

Tanaka

2019

Mechanical Engineering Reviews

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The cos method for X-ray residual stress measurement using two-dimensional detector Abstract X-ray stress measurement is widely used as one of the most powerful nondestructive tools to measure residual stresses in polycrystalline solids. In most cases, the sin 2  method has been used to determine the stress. In recent years, however, the cos method has attracted engineers as a new method to measure the stress using twodimensional detectors, such as imaging plates. The present article is the review of the state of the art of the cosmethod. For biaxial stress cases, the cos method utilizes the whole Debye-Scherrer ring recorded on a twodimensional detector taken by single exposure of X-rays, and normal and shear stresses are determined simultaneously. The accuracy of the stress measurement of the cos method has been confirmed to be equivalent to that of the sin 2  method for various metals. The simple optical system of the cos method makes stress analyzers smaller, lighter and more convenient to use for on-site or field measurements. A recent portable stress analyzer adopting the cos method shortens the measurement time to 60 s. The method has been further developed to analyze triaxial residual stresses. Various advantages of the cos method are highlighted in comparison with the other methods of X-ray stress determination. Applications of the cos method to machines and engineering structures are presented, together with future perspectives of the method.

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“…Aligning always leads to a decrease in the electrical conductivity of the alloy relative to pure aluminum and ductility. In practice, taking into account the aim pursued, a compromise is allowed between the excluded properties and the property of most interest [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Structural Aspects Revealed by SEM Investigations for 2024 Aluminum Alloys

Anghelina

Ungureanu

Popa

et al. 2018

Scientific Bulletin of Valahia University - Materials and Mechanics

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In this presentation are evidenced instrumental characterization by Electronic Scanning Microscopy (SEM) equipped with EDS / WDS of aluminum alloys such 2024 alloy with multiple synergistic purposes as: acquisition of new knowledge, increase the amount of information obtainable about the material, increasing the efficiency and the quality of the tests, characterization of special destination alloys and assessing their conformity with the specified requirements. In this direction, it requires both the knowledge the test methods (theoretical basis, test method, procedure relating to the method, quality assurance testing) as well material characteristics investigated. These aspects are necessary for test system design, and preliminary interpretation of experimental results.

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The influence of alloy composition on residual stresses in heat treated aluminium alloys

Cited by 45 publications

References 15 publications

Sensitivity and optimisation of the Chaboche plasticity model parameters in strain-life fatigue predictions

Sensitivity and optimisation of the Chaboche plasticity model parameters in strain-life fatigue predictions

The cos<i>α</i> method for X-ray residual stress measurement using two-dimensional detector

Structural Aspects Revealed by SEM Investigations for 2024 Aluminum Alloys

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