Journal ArticleDOI
Residual stress. Part 1 – Measurement techniques
TLDR
In this paper, the effect of residual stresses on fatigue lifetimes and structural integrity are first summarised, followed by the definition and measurement of residual stress, which are characterised according to the characteristic length scale over which they self-equilibrate.Abstract:
Residual stress is that which remains in a body that is stationary and at equilibrium with its surroundings. It can be very detrimental to the performance of a material or the life of a component. Alternatively, beneficial residual stresses can be introduced deliberately. Residual stresses are more difficult to predict than the in-service stresses on which they superimpose. For this reason, it is important to have reliable methods for the measurement of these stresses and to understand the level of information they can provide. In this paper, which is the first part of a two part overview, the effect of residual stresses on fatigue lifetimes and structural integrity are first summarised, followed by the definition and measurement of residual stresses. Different types of stress are characterised according to the characteristic length scale over which they self-equilibrate. By comparing this length to the gauge volume of each technique, the capability of a range of techniques is assessed. In the sec...read more
Citations
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Journal ArticleDOI
Unravelling the ultrasonic effect on residual stress and microstructure in dissimilar ultrasonic-assisted friction stir welding of Al/Mg alloys
Dissertation
Understanding Plasticity and Fracture in Aluminum Alloys and their Composites by 3D X-ray Synchrotron Tomography and Microdiffraction
TL;DR: In this paper, two distinct experimental studies were performed to further the understanding of fatigue damage mechanisms in aluminum alloys and their composites, specifically fracture and plasticity, and the results showed that the microstructural damage that occurs in these materials is critical in assessing their fatigue resistance.
Journal ArticleDOI
Welding of ASTM A106 Gr. B steel pipes for high-temperature service – part 1 – residual stress analysis
Cleiton Carvalho Silva,Arlindo Braga de Souza Neto,Francisco Diego Araruna da Silva,Francisco Edval Sampaio de Freitas Júnior,Jesualdo Pereira Farias +4 more
TL;DR: In this article, the authors evaluated the residual stress in small diameter pipes used in oil refineries and found that axial residual stress profiles were formed by compressive stresses in the weld region (the fusion zone and heat affected zone) and for tension stresses in more distant from the weld bead.
Journal ArticleDOI
Rapid Calculation of Residual Stresses in Dissimilar S355–AA6082 Butt Welds
TL;DR: In this article, an analytical model is proposed to rapidly capture the thermal and residual stresses values induced by the hybrid metal extrusion and bonding (HYB) process on dissimilar-metal butt-welded joints.
Journal ArticleDOI
A Review of Image-Based Simulation Applications in High-Value Manufacturing
TL;DR: Image-Based Simulation (IBSim) is the process by which a digital representation of a real geometry is generated from image data for the purpose of performing a simulation with greater accuracy than with idealised Computer Aided Design (CAD) based simulations as mentioned in this paper .
References
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Book
Elements of X-ray diffraction
TL;DR: In this article, the authors present a chemical analysis of X-ray diffraction by Xray Spectrometry and phase-diagram Determination of single crystal structures and phase diagrams.
Book
Encyclopedia of Materials: Science and Technology
K. H. Jürgen Buschow,Robert W. Cahn,Merton C. Flemings,Bernhard Ilschner,Edward J. Kramer,Subhash Mahajan +5 more
TL;DR: In this article, the fundamental core theory of functional properties and properties of materials are discussed. But the authors focus on the physical properties of thin films and artificial multilayers, rather than the structural properties of the materials themselves.
Journal ArticleDOI
Residual stress. Part 2 – Nature and origins
TL;DR: In this paper, the authors examine the nature and origins of residual stresses across a range of scales, from the long range residual stress fields in engineering components and welded structures, through the interphase stresses present in composites and coatings, to the microscale interactions of phase transformations with local stresses.
Book
Handbook of Measurement of Residual Stresses
TL;DR: In this paper, the authors describe a sequence of residual stress measurements made to determine a Handbook on Stiffness & Damping in Mechanical Design, which can be used to compare different methods of measuring residual stress.