Study and analysis of residual stresses due to various secondary processes in AA 2219 annealed sheet using acoustic emission and hole drilling methods

Venkitakrishnan, P. V.; Sinha, P. P.; Krishnamurthy, R.

doi:10.1016/j.ndteint.2005.02.010

Cited by 6 publications

(2 citation statements)

References 3 publications

(3 reference statements)

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“…Sedek et al made use of AE signals for monitoring the reduction of residual stresses in a pressure vessel using RMS value confirming that this parameter can be used for evaluating the variation of the stresses inside the material [20]. Venkitakrishnan et al utilized the acoustic emission technique for analysis of residual stress change due to secondary processes [21]. By using acoustic sensors and feature extraction, Shao et al could identify laserinduced thermal damage in metallic materials.…”

Section: Acoustic Emission Methodsmentioning

confidence: 99%

Residual stress evaluation in friction stir welding of aluminum plates by means of acoustic emission and ultrasonic waves

Sadeghi¹,

Karimi²,

Fotouhi³

et al. 2018

FME Transaction

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Section: Acoustic Emission Methodsmentioning

confidence: 99%

Residual stress evaluation in friction stir welding of aluminum plates by means of acoustic emission and ultrasonic waves

Sadeghi¹,

Karimi²,

Fotouhi³

et al. 2018

FME Transaction

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“…Non-destructive methods for measuring residual stresses are not easily applicable to noncrystalline materials, large grained materials, nanomaterials, textured or heavily deformed metals. In these cases other mechanical methods, such as the hole-drilling method, are preferred [3,7].…”

Section: Output Definitionmentioning

confidence: 99%

Experimental Investigation on the Residual Stresses Induced by a Plastic Forming Process

Lamanna¹,

Grassia

Ascione

2010

KEM

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The extrusion of a space frame must be followed by forming operations of some kind to obtain the desired shape/curvature, for example a stretch bending process. Therefore, one has to face with problems as production tolerances and cross-sectional distortions of the curved product. In house experience combined with trial–and–error procedures have been traditionally used to cope with the said problems. Aircraft frames show significant residual stresses as a consequence of plastic forming processes. A great number of variables, such as initial frame length and/or final additional stretch, can influence the stress state of frames determining their life and efficiency under operating loading conditions. In the present paper, we refer about the experimental evaluations of the residual stress state of aircraft frames which have carried out taking into account different process parameters. The experimental results obtained and discussed show some interesting trends: they demonstrate that the residual stresses of the formed component can be controlled and reduced.

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Acoustic Emission Analysis of Aluminum Specimen Subjected to Laser Annealing

Barile

Casavola

Pappalettera

et al. 2013

Residual Stress, Thermomechanics &Amp; Infrared Imaging, Hybrid Techniques and Inverse Problems, Volume 8

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Study and analysis of residual stresses due to various secondary processes in AA 2219 annealed sheet using acoustic emission and hole drilling methods

Cited by 6 publications

References 3 publications

Residual stress evaluation in friction stir welding of aluminum plates by means of acoustic emission and ultrasonic waves

Residual stress evaluation in friction stir welding of aluminum plates by means of acoustic emission and ultrasonic waves

Experimental Investigation on the Residual Stresses Induced by a Plastic Forming Process

Acoustic Emission Analysis of Aluminum Specimen Subjected to Laser Annealing

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