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
Numerical simulation of welding-induced residual stress in fusion welding process using adaptive volumetric heat source
TL;DR: In this article, a finite element based numerical model for simulation of welding-induced residual stresses is presented, where a thermal model using adaptive volumetric heat source has been used to estimate temperature distribution.
Journal ArticleDOI
Hard and Corrosion-Resistant Ni-xAl-yTi Nanocomposite Coatings for CNT/Al Composites
TL;DR: In this paper, the dependences of microstructure, microhardness, residual stress, and corrosion resistance of the ternary nanocomposite coating on current density were investigated, and the results showed that the embedded Al and Ti particles caused the crystallite refinement and the decrease of [200] fiber texture of nanocrystalline Ni matrix when current density decreased.
Journal ArticleDOI
Room-temperature control of the residual stress gradient in titanium micro-cantilever beams by helium ion implantation
Tae June Kang,Taewoo Kim,Sang-Hyun Park,Jae Sung Lee,Jae H. Lee,Jun-Hee Hahn,Ho-Young Lee,Yong Hyup Kim +7 more
TL;DR: In this paper, the authors examined the room-temperature control of the residual stress gradient in sputtered titanium (Ti) films by helium (He) ion implantation and found that residual stress could be controlled effectively by adjusting the implantation conditions.
Journal ArticleDOI
Direct Experimental Observations on Concurrent Microstructure and Magnetic Property Developments in Non-Grain Oriented Electrical Steel
S.K. Shekhawat,V. Basavaraj,V.D. Hiwarkar,Rohan Chakrabarty,J. Nemade,P. J. Guruprasad,K. G. Suresh,Roger D. Doherty,Roger D. Doherty,Indradev Samajdar +9 more
TL;DR: In this article, non-grain oriented electrical steel, with minor in-grain orientation gradients, was subjected to interrupted tensile deformations and concurrent microtexture, magnetic property and residual stress measurements.
Journal ArticleDOI
A numerical methodology for monitoring stress distributions and experimental proof of the concept on metal embedded thin polymer-matrix composites using X-ray Diffraction
TL;DR: In this article , a numerical methodology is developed to monitor stress distributions and an experimental technique is investigated to measure stresses on metal embedded polymer matrix fiber-reinforced composite materials using X-ray diffraction (XRD) method.
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.